Tuesday, May 26, 2009

D6-AGRICULTURE - PROJECT


AGRICULTURE

Agriculture is one of the oldest occupations of human beings. Agriculture means ploughing of the land, sowing seeds, protecting plants and obtaining crops for the use of people and domestic animals. Agriculture also includes cattle rearing, bee keeping, sericulture and poultry. It supplies required food grains for the people, fodder for cattle and also raw materials for industries. Agriculture plays a very important role in Indian economy.

TYPES OF AGRICULTURE:
Different types of agriculture are practised in different parts of the country depending upon the landuse, types of crops grown, the yield, implements used, the use of manures etc. The main reasons for different types of agriculture in India are the nature of land, climate, rainfall, soil, market , technology, capital and labour.
The important types of agriculture practised in India are: 1) Primitive subsistence farming,
2) Commercial farming, 3) Mixed farming and 4) Plantation farming

1) Primitive subsistence farming: It is a type of farming where the production of crops is for domestic (home) consumption. It is widely practised in the hilly regions of North- East India, Orissa and Madhya Pradesh. The characteristics of this farming are small farms, use of ancient and simple implements and unscientific methods of cultivation. There are two types of subsistence farming 1) shifting cultivation and
2) sedentary cultivation. Shifting cultivation takes place in forest areas where in some parts, trees are cut and burnt and agriculture is carried on. After growing and reaping the crops for a few years, the land loses its fertility and the farmer shifts agriculture to some other place. Shifting agriculture results in soil erosion and gives low yield. This type of cultivation is called “Kumari” in Karnataka, “Jhuming” in Assam, “Ponama” in Kerala and “Podu” in Andhra Pradesh. Sedentary farming is settled agriculture. The agricultural practices and seeds used are traditional ones, the produce is used for domestic consumption and
the surplus is exchanged for other requirements. Now a days the surplus is mostly sold.

2) Commercial Farming: Production of crops and rearing of cattle mainly for sale is called commercial farming. Normally it is characterized by large farms and only one type of crop is grown. The nature of land, soil, irrigation facilities and climate are suitable for that crop. Machinery, chemical fertilizers, hybrid seeds and pesticides are used. The important crops grown under commercial farming in India are cotton. sugarcane, tobacco, chillies, oil seeds etc.

3) Mixed Farming: Mixed farming is the raising of crops and rearing of cattle, poultry, bee keeping, sericulture etc. on the same land. This type of farming is practised very widely in India. The main characteristics of this type of farming are a) different variety of crops are grown, b) scientific methods of agriculture are followed and C) sufficient capital is required.
4) Plantation Farming: The important crops grown under this type of farming are coffee, tea, rubber, spices, coconuts, arecanuts, beetle leaves, etc. It consists of large estates for farming. The production also earns foreign exchange. It is practised in Assam, West Bengal, Karnataka, Tamilnadu and Kerala. Vegetables, fruits, and flowers are also grown on large scale under this type of farming.

AGRICULTURAL SEASONS:
In India, agriculture is carried on throughout the year in different regions. India has two cropping seasons - the Kharif and the Rabi .The Kharif season begins with the onset of South-West monsoons. The important crops of this season are paddy, cotton, ragi, jowar, maize, oil seeds, pulses and jute. The post-monsoon season is the Rabi season. It depends mostly on sub-soil moisture and irrigation. The major crops of this season are cotton, wheat, barley, oil seeds, tobacco etc. Wheat is the main crop. Paddy, as a second crop, is also grown during this season.

MAJOR CROPS
Crops of India may be divided into two groups. They are food crops and commercial crops. Food crops mainly consist of food-grains, vegetables, fruits etc. Commercial crops mainly consist of fibre crops, beverage crops, sugarcane, tobacco and oil seeds.

FOOD CROPS:
The important food crops are paddy, wheat, jowar, vegetables, fruits, and pulses. Paddy, wheat and jowar are important cereals.
Paddy: Paddy is one of the important food-grains of India. India is the second largest producer of paddy in the world, next to China. It is mainly a Kharif crop and is also grown as a Rabi crop wherever irrigation is available. It is a tropical crop and requires 250C temperature and 100 to 200 cms. of rainfall. Fertile alluvial soil and clayey soil are suitable for the cultivation of paddy. It requires standing water till the crop is ready for harvest, so, flat land is required. Wherever rainfall is less, irrigation is required. Paddy is grown all over India. Paddy cultivation is concentrated in the regions where favourable geographical conditions are available. The main regions where paddy is grown in India are the eastern and western coastal plains, deltas of rivers, Northern plains, and Terai regions of the Himalayas. West Bengal is now the largest paddy growing state. (formerly it was Andhra Pradesh). The other states where paddy is cultivated are Uttar Pradesh, Madhya Pradesh, Bihar, Andhra Pradesh, Orissa, Karnataka and Tamilnadu. Though the land area under paddy cultivation is large, the yield is low. In recent years there is great increase both in yield and production because of hybrid seeds, improved methods of cultivation and irrigation.

Wheat: Wheat occupies the second place in India with regards to production and area under cultivation. It is mainly a Rabi crop of India. It is one of the oldest crops introduced in India from West Asia. It requires 100C to 150C temperature, and 50 to 70 cms. of rainfall. Wheat grows well in black cotton soil and clayey soil. Wheat is largely grown in Punjab, Haryana and Uttar Pradesh. Punjab is called the wheat granary. Madhya Pradesh, Bihar, Rajasthan, Gujarat, northern parts of Karnataka and Maharashtra are the other wheat growing states. Uttar Pradesh stands first in the production of wheat. High yielding varieties of seeds and irrigation facilities have helped in the increase of production of wheat. India stands fourth in the production
of wheat in the world.

Jowar, Ragi and Bajra.
Jowar:
It is a Kharif crop. It is largely grown in the dry the parts of Central and South India. It requires high temperature and moderate rainfall. It grows well in black soil. Karnataka, Maharashtra and Madhya Pradesh are the leading producers of jowar.
Ragi: It is a very nutritious grain and gives higher yield than other millets. It grows as a dry crop in areas of low rainfall and poor soil. It is one of the important food crops of Karnataka, Tamilnadu and Andhra Pradesh. It is an important Kharif crop.

Bajra: It is grown in areas of low rainfall and poor soil. It is grown in Maharashtra, Rajasthan, Gujarat, Uttar Pradesh, Haryana, Andhra Pradesh and Karnataka.

Maize: It is grown as a subsidiary food-grain and as a fodder for cattle. It is a high yielding Kharif crop. It is grown in undulating areas with moderate and heavy rainfall. It is grown in less fertile soil. Maize is mostly grown in Uttar Pradesh, Jammu and Kashmir, Bihar, Rajasthan, Madhya Pradesh, Gujarat, Himachal Pradesh, Andhra Pradesh and Karnataka.

Pulses: The important pulses grown in India are gram, including horse gram, green gram, black gram, Bengal gram, Tur dal etc. They are rich in protein. They are leguminous and preserve the fertility of the soil. Therefore they are grown along with other crops and as part of crop rotation.

COMMERCIAL CROPS:
Commercial crops not only help to earn foreign exchange, they also provide raw materials for industries. The important commercial crops of India are sugarcane, cotton, jute, oil seeds, tea, coffee, tobacco and spices.

Sugarcane: It is the chief commercial crop of India. India occupies the second place in the world in the production of sugarcane. Sugarcane is used as a raw material in the production of sugar, jaggery, alcohol and in paper industry. Sugarcane is an annual and irrigated crop. It requires hot and humid climate with 210C to 260C temperature and 100 to 150 cms. of rainfall. It grows well in alluvial and black soil. Sugarcane is grown in almost all parts of the country. Uttar Pradesh had been the largest producer of sugarcane in the country. The other states which grow sugarcane are Maharashtra, Tamilnadu, Karnataka, Andhra Pradesh, Orissa, Gujarat and Madhya Pradesh. The yield of sugarcane is higher in South India than in North India.

Coffee and Tea: They are the most important beverage crops grown in India. India is the largest producer of tea in the world. Both tea and coffee require somewhat similar climate and soil conditions. They require hot and humid climate with 150C to 300C temperature. Coffee requires 150 to 200 cms. of rainfall and shade of trees. Tea requires 200 to 250 cms of rainfall and shade of trees is not required. The rainfall should be evenly distributed throughout the year. Both require well-drained fertile soil, rich in organic matter. Assam is the largest producer of tea in India. West Bengal, Kerala, Tamilnadu and Karnataka also produce tea. Darjeeling (West Bengal) tea is world famous. Karnataka is the largest producer of coffee in India. The southern parts of the Western Ghats of Karnataka are well suited for the cultivation of coffee. Coffee is also grown in Tamilnadu and Kerala. India is an important exporter of tea.

Cotton and Jute: These are the important fibre crops of India. Cotton is a tropical crop. It requires 200C to 450C temperature and 75 to 100 cms. of annual rainfall. The yield of cotton is high where irrigation facilities are available and rainfall is moderate. It grows well in alluvial, red and black soil which are well drained. It is both a Kharif and Rabi crop. The most important cotton producing states are Maharashtra, Gujarat, Andhra Pradesh, Punjab, Haryana, Rajasthan, Karnataka and Uttar Pradesh. India grows mostly short and medium staple cotton. Long staple cotton is grown in Punjab, Haryana, Rajasthan, Tamilnadu and Uttar Pradesh.

Jute requires warm and humid climate with 250C to 350C temperature and more than 150 cms of rainfall. It is best grown in light sandy deltaic soil. It requires a large quantity of water and a large supply of cheap labour. Cultivation of jute was earlier concentrated only in the north-eastern states of India. Now jute is also grown in other states. West Bengal is the largest producer of jute in India. The other states are Assam, Uttar Pradesh, Bihar, Orissa and Tripura. The partition of Bengal affected jute production because the jute growing regions went to East Pakistan (Bangladesh). Jute is also called "golden fibre".

Tobacco: It belongs to Nicotine group. It was introduced in India by the Portuguese during the 16th century. In the beginning it was grown in Goa, Karnataka and Gujarat states. Later its cultivation was carried on in the state of Andhra Pradesh and other parts. Today India is one of the leading producers of tobacco in the world and stands third in world production. It is cultivated as a Rabi crop under a wide variety of climatic and soil conditions. Andhra Pradesh and Gujarat are the leading producers of tobacco. The other tobacco producing states are Karnataka, Tamilnadu, Uttar Pradesh, Orissa, West Bengal, Assam, Bihar, Maharashtra and Rajasthan.

Oil Seeds: The other important group of commercial crops grown in India is oil seeds. They include groundnuts, castor seeds, sesame, rape seeds, mustard etc. Oil is also extracted from palms and coconuts. Oil which is extracted from oil seeds is used for food, industrial purposes, preparation of medicines, industrial lubricants and soaps. Madhya Pradesh, Andhra Pradesh and Karnataka are the important oil seed producers in India. In the past oil was the main source for lighting.

THE OTHER COMMERCIAL CROPS:
Cocoa, pepper, cardamom, clove, cashew, rubber, turmeric, ginger etc. are the other commercial crops. Cocoa is grown on the slopes of Nilgiri Hills. Spices are grown on the wet slopes of the Western Ghats. Rubber plantations are distributed in Kerala, Assam, Karnataka and Tamilnadu.

LIVE STOCK REARING:
Rearing of cattle and dairy farming are important occupations of the people both in rural and urban areas. They are an integral part of agriculture. India has a large number of cattle, buffaloes, sheep, goats, and other domesticated animals. India has about 16 % of the world’s cattle, 51 % of the buffaloes, 18% of the goats and 4% of sheep. Now-adays piggery has also developed as a supplementary occupation.

POULTRY: Poultry was reared since ancient days. Now it has become a commercial occupation. India has made considerable progress in poultry farming and in the production of eggs. It stands fifth in the world. According to the 2001 census, 32 crore eggs per year are produced in India. Scientific Research Centres are established at Mumbai, Bhuvaneshwar, Chandigarh and Hesaraghatta near Bangalore. At Hesaraghatta, broiler breed of hen is developed to lay more eggs. Besides, research is also being carried on in developing breeds of ducks.

DAIRY FARMING: Increase in production of milk can provide rural people with income as well as employment. Dairy farming was given more importance during the 8th Five Year Plan. During 2001-2002, the production of milk in India went up to 85 million tonnes. Today India stands second in the production of milk in the world.

SERICULTURE: Rearing of silk worms is also known as sericulture. Sericulture or silk worm rearing is important in some parts of India. Silk worms are fed mostly on mulberry leaves. India is the second largest producer of silk in the world. Andhra Pradesh, Karnataka, Assam, Bihar, Kashmir, Madhya Pradesh and Maharashtra are important producers of silk. Karnataka stands first in the production of silk in India.

EXERCISE
I Answer the following questions briefly:
1) Which are the important commercial crops of India?
2) Mention the geographical requirements for the cultivation of wheat.
3) In which parts of India are coffee and tea grown?
4) Which types of agriculture are followed in India?
5) Which are the jute growing areas in India? Why is jute cultivation concentrated in these areas?
6) What is the importance of pulses?
7) What is mixed farming?
8) Name the important crops grown in India.

II Match the following with phrases from below:
Paddy, wheat, coffee, oil seeds, cotton, jute, sericulture.
1) Used in the production of industrial lubricants.
2) Grows under the shade of a tree.
3) Gives more yield in black soil
4) Winter or Rabi crop
5) Uses mulberry leaves.
6) India stands second in its production
7) Grows well in the deltas of rivers.

III Give Reasons :
1) Different types of agriculture are practised in different parts of the country.
2) Sugarcane is the main commercial crop of India.
3) Jute is grown in the Ganges Delta.
4) India is the second largest producer of paddy in the world.

Monday, May 25, 2009

D7-OUR RESOURCES - PROJECT/ASSIGNMENT

OUR RESOURCES
The resources of India can be broadly classified into natural and human resources. The natural resources can be further divided into water resources and land resources. As India is an agricultural country, the study of water and land resources is of great importance.

WATER RESOURCES
Water is an important natural resource. It is the basic need of human beings and considered as the wealth of a nation. Water is needed for irrigation, generation of power, industries, domestic use, navigation, fisheries and recreational purposes. The use of water resources is not new to humankind. The development of water resources is very essential to satisfy the needs of growing population and as a natural resource, its judicious conservation is required. Now a days rain water harvesting is given due importance. The chief sources of surface water are rivers and lakes. The underground water sources are wells and springs. The availability of water varies from place to place and from time to time. India depends on rainfall and snowfall for surface water and underground water. Rainfall in India is uncertain, unevenly distributed and seasonal. Therefore, to carry on agriculture, India depends on canals, tanks and wells. They are very essential wherever the water is scarce. This method of supplying water artificially for agriculture is called irrigation. Irrigation is very important in India agriculture is the main occupation of the people and rainfall is insufficient. One of the greatest achievements in the history of agriculture is the practice of irrigation. The perennial rivers of North India and the underground water resources of the Great Plains of the north have helped in the development of irrigation.

TYPES OF IRRIGATION:
Different regions have different types of irrigation, depending upon the source of water. The distribution of rainfall, relief features and the requirement of water for different crops are the factors affecting the practice of different types of irrigation. The major types of irrigation practised in India are:-
1) Well irrigation,
2) Tank irrigation,
3) Canal irrigation.

WELL IRRIGATION: It is the most important type of irrigation in India. It provides water to large areas of cultivated land. It is most suitable for Indian agriculture because this system of irrigation can be adopted even in areas where rainfall is scanty. For the construction of wells, huge capital and technology are not required. Irrigation is possible throughout the year. For small landholders, this type of irrigation is easily accessible. Because of these reasons, well irrigation is largely practised to-day. There are two types of wells, namely, open wells and tube wells. Water is lifted from open wells through manual power or with the help of diesel or electric pumpsets. But the tube wells are usually fitted with electric pumps for lifting water. Well irrigation is very important in India. It accounts for 51.2% of the total irrigated area in India. To develop well irrigation, the government provides loans to our farmers at lower rate of interest. Well irrigation is mostly practised in the North Indian Plains and the eastern coastal plains. Uttar Pradesh accounts for 28.6 % of the total well irrigated area. Apart from this,
Rajasthan, Punjab, Gujarat, Tamilnadu, Karnataka, Madhya Pradesh, Bihar and Andhra Pradesh have also developed well irrigation.

TANK IRRIGATION: It is practised in India since ancient times. Under this system, bunds are constructed across small streams, water is stored and supplied to agriculture through small canals. This type of irrigation is mostly practised in South India because the peninsular plateau is suitable for the construction of tanks. Tank irrigation is found in Karnataka, Andhra Pradesh, Tamilnadu, Maharashtra, Orissa and Madhya Pradesh. Only 8% of the total irrigated land is under tank irrigation. Two tanks constructed during 8th century A.D. in Chingalpet district of Tamilnadu are still in use. There are a few problems with regard to tank irrigation. They are:
(1) Tanks mostly depend on rain water. They are filled with water only during the rainy season and became dry during summer when water is most needed
(2) Silt accumulates in tanks and desilting becomes necessary. In Karnataka, desilting of tanks is being has been carried out.

CANAL IRRIGATION: Canal irrigation is mostly practised in North India where perennial rivers flow. India has the largest network of irrigation canals. 39% of the total irrigated area is covered by canal irrigation. The flat surface of North India, perennial rivers, vast agricultural land, have become important factors for the development of canal irrigation. The construction and maintenance of canals requires huge capital, hence they are under the control of the government. There are two types of canals. They are non-perennial (inundation) canals and perennial canals. Dams are constructed across the rivers in the perennial canals. They store water in reservoirs and provide it for agriculture through canals. Canals taken out directly from the rivers are called non-perennial canals. In India, Punjab, Haryana, Rajasthan, West Bengal, Orissa, Andhra Pradesh, Tamilnadu and Maharashtra have canal irrigation. Uttar Pradesh has the largest network of irrigation canals.

MULTI-PURPOSE RIVER VALLEY PROJECTS: India has undertaken the construction of multi-purpose river valley projects for the maximum utilisation of water resources. The main purpose of these projects are:
(1) they provide for irrigation
(2) they help to generate hydro-electric power,
(3) they control floods,
(4) they prevent soil erosion,
(5) they help to develop fisheries,
(6) they provide inland navigation
(7) they provide water for industries,
(8) they provide recreational facilities and water for domestic use and
(9) they also help afforestation.
In India there are 162 major and 240 medium size and 74 small size river valley projects.

IMPORTANT MULTI-PURPOSE PROJECTS
1. Damodar River Valley Project: This was the first multipurpose project constructed after Independence. It was a joint venture of former Bihar and West Bengal states. River Damodar rises in the Chotanagpur plateau of Jharkhand. But its floods caused a lot of destruction in West Bengal. It was called the “Sorrow of Bengal”. The objectives of this project were to control floods, provide navigation, hydro-electricity, fish culture, recreational facilities afforestation and prevention of soil erosion. It has 2,495 km. length of canals and 4.5 lakh hectares of land under irrigation. Dams are constructed across river Damodar and its tributaries at Tilaya, Konar, Maithon and Panchet hill. Thermal power stations are constructed at Bokaro, Chandrapur and Durgapur. Jharkhand and West
Bengal benefit from this project.

2. Bhakra-Nangal Project: It is the highest multi-purpose river valley project of India. It is a joint venture of Punjab, Haryana and Rajasthan. Dams are constructed across the river Sutlej in Himachal Pradesh at Bhakra and Nangal. Bhakra dam is 226 mts. high and is the highest dam in Asia. The canals of this project are 3,402 kms. long and provide irrigation to 14.6 lakh hectares of land. Delhi and Himachal Pradesh also get irrigation water and hydro-electric power. The reservoir which is created is called ‘Govind Sagar’.

3. Kosi Project: The main objective of this project is to control floods. Kosi was called the "sorrow of Bihar". It is a joint venture of India and Nepal. It is constructed across the river Kosi at Hanuman Nagar on the borders of India and Nepal, it provides irrigation to about 8.75 lakh hectares of land. 50 % of the hydro-electricity produced by this project is supplied to Nepal.

4. The Hirakud Project: Flood control, irrigation and production of hydro-electricity are the main purposes of this project. This project is constructed across the river Mahanadi at a distance of 10 kms. from Sambalpur in Orissa. River Mahanadi was called the “Sorrow of Orissa”. The Hirakud project has the longest dam in India with a length of 4,801 mts. It irrigates almost 2.54 lakh hectares of land. The states of Orissa, Bihar and Chhattisgarh are provided with irrigation and hydro-electricity.

5. Tungabhadra Project: The main purposes of this project are irrigation and generation of hydro-electricity. It is a joint venture of Karnataka and Andhra Pradesh. This dam is constructed across the river Tungabhadra near Hospet in Bellary district of Karnataka. The reservoir is called ‘Pampa Sagara’. It provides irrigation to about 5.5 lakh hectares of land in Karnataka and Andhra Pradesh and also supplies hydro-electricity.

6. Nagarjuna Sagar Project: This dam is constructed across river Krishna near
Nandikonda village in Andhra Pradesh. It is the largest multi-purpose river valley project in India. The main purposes of this project are to provide irrigation and generation of hydroelectricity. It irrigates almost 8.30 lakh hectares of land.

7. Chambal Project: It is a joint venture of Madhya Pradesh and Rajasthan. The main purposes of this project are to prevent soil erosion, generate hydro-electricity and provide irrigation. Three reservoirs are constructed. They supply water to about 5.60 lakh hectares of land in Madhya Pradesh and Rajasthan.

8. Upper Krishna Project: It is an irrigation project of Bagalkot and Gulburga districts of Karnataka. It is constructed across the river Krishna near Almatti in Bagalkot district. It aims at providing irrigation to 1.43 lakh hectares of land in Bijapur, Raichur, Bagalkot and Gulbarga districts. Another dam is constructed across river Krishna at Narayanpur in Gulbarga district.

9. Narmada River Valley Project: The idea of constructing a dam across the river Narmada was initiated even during the British period. The irrigation committee of 1901 announced the construction of a project across river Narmada but somehow it did not materialise during the British period. In 1961, Pandit Jawaharlal Nehru, the then Prime Minister of India, laid the foundation for the construction of a dam at Bharut. But from the beginning, this project has faced a lot of opposition and in 1969 the river water tribunal was appointed to settle the disputes between Madhya Pradesh and Gujarat over the distribution of water from this project. The Narmada project which consists of 23 dams includes Sardar Sarovar, Narmada Sagar and Narmada upper project. On completion, these dams will provide irrigation and hydro-electricity to North Gujarat, Saurashtra and some parts of Maharashtra. In addition to these projects there are many other irrigation projects. In Karnataka state, the important projects are Ghataprabha, Bhadra, Kali and Malaprabha. There are many projects in India with the main objective of providing irrigation.

POWER GENERATING PROJECTS
There are some projects which are meant only for the generation of power. The largest hydro-electric potential is along the Himalayas from Kashmir to Arunachal Pradesh. The snowfed and rainfed rivers have plenty of water. The relief features of this area are quite suitable for the generation of power. The second region is along the Western Ghats. This region gets heavy rainfall and it has rugged relief. The plateaus of peninsular India also have favourable relief and wherever water is sufficient, hydel power is generated. The prominent hydel power generating stations are Sileru in Andhra Pradesh, Dhuvaran in Gujarat, Shabarigiri and Idukki in Kerala, Koyna in Maharashtra and Sharavathi, Chakra and Kalinadi projects in Karnataka.

FISHERIES: India has vast water bodies where fish can be reared and used for food. India is surrounded by water bodies on three sides and it has a wide continental shelf, active ocean currents and deposition of sediments by the rivers which provide a rich breeding ground for fish. To increase its marine fish catch, India needs big mechanized fishing boats and vessels. It also needs improved landing and berthing facilities. Another requirement is cold storage and processing facilities for marine products. India has many rivers, canals and lakes which can be rich sources of fish. Fishing is also one of the aims of multi-purpose projects.

WATER POLLUTION: Water resource is very important and is required for industries, agriculture, fishing and domestic purposes. We should take care to see that water is not wasted and also to see that our water sources are not polluted. Very often industrial waste is pumped into rivers and seas, thus causing pollution. For example many industries on the banks of river Ganges have polluted it. The Central Ganga Authority was set up by the Government of India for checking the flow of pollutants and sewage into the river Ganges. All the rivers, reservoirs and lakes of India are faced with pollution.

Land Resources
Land is the most important among the natural resources. The judicious and planned utilisation of this resource results in economic development. The geographical factors such as landforms, climate and soil determine the landuse pattern in India. The varied economic and social factors and attitudes of the people have also influenced the landuse in India. The landuse in India can be broadly classified into five categories. They are
1) Land under cultivation,
2) Forests,
3) Land not available for cultivation,
4) Fallow land and
(5) other uncultivated land.

1) Land under cultivation: It accounts for about 1,428.2 lakh hectares of the total land area. Compared to other countries of the world, India has a fairly large percentage of land under cultivation. In the North Indian plain, the states of Punjab. Haryana and West Bengal have 60% of the land under cultivation. The states of Mizoram and Arunachal Pradesh have only 3.1% and 2.7% of the land under cultivation respectively. 30.4% of the land under cultivation has the capacity to grow more than one crop a year.

2) Forest region: India has about 687.5 lakh hectares of land under forests. The amount of land under forests varies from state to state. Arunachal Pradesh and Andaman and Nicobar islands have 90% of the land under forests. Mizoram, Jammu and Kashmir, Tripura and Himachal Pradesh have about 60 to 62% land covered with forests. Haryana has the lowest area under forest. Reckless cutting down of forests has reduced the area under forest.

3) Land not available for cultivation: It includes barren land and the land used for the construction of buildings, roads and railways, and also land occupied by rivers, canals and lakes. Some of the barren land can be put to better use by developing forests.

4) Fallow land: It is cultivable land but not put to use either because of shortage of water or poor soil. Large tracts of land which were cultivated in the past are now abandoned due to soil or water deficiency.

5) The other uncultivated land: It includes permanent pastures, grazing land and
groves. India has about 4% of the land under pastures. The total available land is fixed. In view of the pressure on land for various purposes, it is necessary to make the proper use of all the available land. This can be done by using scientific methods of cultivation such as conservation of soil, turning wasteland into cultivable land, thus increasing the productivity of the land.

SOIL RESOURCES
Soil is a valuable natural resources. Soil is formed by decomposition and disintegration of rocks under different types of climate. The soil of India can be broadly divided into, 1) alluvial soil 2) Black soil 3) Red soil 4) Laterite soil 5) desert soil 6) terai soil and 7) mountain soil.

NORTH INDIAN SOILS
1) Alluvial soil : This soil is more widespread than other soils. It is spread over 7.7 lakh sq. km. of area in Uttaranchal, Uttar Pradesh, Bihar, West Bengal, Punjab, Haryana and Assam. In the south, it is found in the plains and deltas in Andhra Pradesh, Orissa and Tamilnadu. It is the soil brought down by the rivers from the mountains and deposited in the plains and deltas. It is very useful for agriculture since it is very fertile. The soil is rich in potash and lime but poor in nitrogen and humus. The important crops grown in this soil are wheat, rice, sugarcane, cotton and jute. The soil is also very suitable for jute. Irrigation is mostly carried on in this region. This soil is further divided into Khadar and Bhangar soil, Bhangar soil is older soil and Khadar soil is younger soil.

2) Black soil or Regur soil: This soil is very useful for the cultivation of cotton. It is also called black cotton soil. It is formed from the disintegration of volcanic rocks. It contains fine clay particles and is able to retain moisture and hence it is useful wherever rainfall is less. It is spread over an area of about 5.46 lakh sq. km. of India. It is found in Maharashtra, Gujarat, Madhya Pradesh, Western Andhra Pradesh and Northern Karnataka. It has plenty of iron, lime and magnesium carbonates. It is suitable for dry farming. Cotton, jowar, onions, chillies, tobacco, oil seeds, wheat, lemons and grapes are the important crops grown in this soil.

3) Red soil: It is formed by the disintegration of crystalline rocks. It is red in colour due to the change of iron content into iron oxide. It is deficient in organic matter, phosphorus and lime. Generally the low rainfall regions have this soil. The important crops that grow in this soil are tobacco, oil seeds. rice, sugarcane, and cotton. This soil is spread over a region of about 5.18 lakh sq.km. from Kanyakumari in the south upto Western Kachchh of Gujarat and Rajmahal hills in Jharkhand.

4) Laterite Soil: This soil is formed in the regions where rainfall is heavy and temperature is very high. It is not very fertile. It lacks nitrogen and salts. About 2.48 lakh sq.km. of area in India has this soil.The western Ghats, Vindhyas, Satpuras, Rajmahal hills and Purvachal mountain regions have this type of soil. This soil is good for the cultivation of coffee, tea, and other plantation crops. The compact laterate soil can be cut into the form of bricks and can be used for construction of buildings.

5) Desert soil: The low rainfall and high temperature are the reasons for the formation of this soil. About 1.42 lakh sq.km of area in India has this type of soil. The Thar desert of Rajasthan, some parts of Gujarat, Punjab and Haryana have Desert soil. It contains plenty of sand. It has a very small amount of nitrogen and humus and a large amount of salt and phosphate which are soluble, hence the soil is not suitable for cultivation.

6) Terai soil: This soil is found in lowlands and marshy areas. It contains decayed organic material. This type of soil is found in the southern parts of Siwaliks, Jammu and Kashmir and Uttar Pradesh. It covers about 56,000 sq.km.

7) Mountain Soil: It contains plenty of decayed organic matter and is suitable for plantation crops like tea, fruits, and vegetables. This soil is found in the lower slopes of the Himalayas and hilly regions of Jammu and Kashmir, Himachal Pradesh, Punjab, Uttar Pradesh, Bihar, West Bengal and Uttaranchal.

SOIL EROSION: It is one of the main problems of our country and soil erosion is on the increase in recent years. The main reasons for soil erosion are:
1) destruction of forests
2) over-grazing
3) unscientific cultivation and
4) over-irrigation.
Soil erosion results in the loss of fertility of the soil since it is washed away by floods. The river beds accumulate with silt deposits. The reservoirs have accumulation of silt and their storage capacity becomes less. This directly affects our agriculture because India is an agricultural nation.

SOIL CONSERVATION: Prevention of soil erosion and preservation of its fertility is known as soil conservation. All the Five Year Plans have given importance to the prevention of soil erosion. Some of the programmes undertaken to prevent soil erosion are:
1) Contour ploughing (right angle ploughing of land i.e.along the contours)
2) Construction of check dams
3) Prevention of cutting down of forests and growing more forests (afforestation)
4) Development of pasture lands
5) Following scientific methods of farming
6) Proper use of water

Human Resource
The people of a country are its greatest resource. All material resources are exploited by human beings for their existence. For judicious exploitation of natural resources and economic development of a nation, Human resource is required. Productivity of population is decided by the proficiency of people and their skills. The most important among them are scientific and technological development, managerial abilities, cultural values, political and social organizations, education, health, physical power etc. Population which possesses better qualities and skills increases its productive capacity. Therefore human resource is of prime importance. For proper utilization of natural resources and to achieve economic development, better quality of human resource is required. So it is very essential to nurture human resources with better quality of education, technological efficiency, health and other facilities. Economic development and increase in productivity is possible when the people are healthy and physically sound. Karnataka state has come forward to provide better health facilities through ‘Yashaswini’ programme. India has 16% of the total population of the world. Next to China, it is the second largest populated country in the world, The total population of India according to 1991 census was 84.39 crores. It has increased to 102 crores in 2001. The land area remains the same, whereas the population is growing very fast. According to 1901 census, the density of population was 77 persons per sq.km. It increased to 267 persons per sq.km. by 1991 and it is 324 according to 2001 census. West Bengal has the highest density of
population. The increase of population in India between 1991 and 2001 is about 21.35%.
The main factors for the increase in population in India are
1) high birth rate and low death rate
2) Infiltration or immigration from neighbouring countries.
The reasons for high birth rate are marriage as a social obligation, illiteracy, poverty, longing for a male child. The fall in death rate is due to better health facilities, social welfare programmes.
Some of the problems resulting from population growth are:
1) unemployment problem
2) housing problem
3) lack of food and have malnutrition
4) slow economic progress
5) environmental pollution and
6) political and social problems.
The Government of India has introduced many programmes to control population growth. Important among them are: 1) Family Welfare Plan, 2) Women Welfare Programmes, 3) Establishment of family planning units in hospitals and primary health centres. India was the first country to launch family planning programme in the world.

COMPOSITION: India is a secular nation and we find unity amidst diversity. We also find different races and tribes. It was called the "melting pot" by Jawaharlal Nehru. The people of India speak different languages. Some of them are derived from Sanskrit and some of them are of Dravidian origin. Tamil, Telugu, Kannada and Malayalam are Dravidian languages. Assamese, Bengali, Gujarathi, Hindi, Kashmiri, Marathi, Oriya, Punjabi, Sindhi, Sanskrit and Urdu are the other important languages of India. We find many religions in India. India is the home of Hindus , Muslims, Christians, Sikhs, Buddhists, Jains, Zorastrians and others. None of these people can enjoy special privileges because of their religion. India is a secular country and all are equal before the law and enjoy equal freedom. The physical power, intellectual capacity, skills in work, zeal for activities and industriousness are the special qualities of Indian human resource. All these qualities require proper guidance and environment.

DEVELOPMENT OF HUMAN RESOURCE: Man is not only a producer of resources but also its consumer. Therefore utilization of natural resources is necessary. The development of human resource means the process of increasing the knowledge, skills and capacities of all the people in the society. Human Resource Development includes population planning and planning to increase the quality of living of the people. The main purpose of Human Resource Development is to increase social welfare and labour productivity. India has a large human resource, but it is not properly utilized because of poverty, illiteracy, ill-health and unemployment. A new ministry in the Central Government called Ministry for Human Resource Development. (HRD) was formed in 1985 to nurture and utilize the human resource properly and work for its all round development. It has five departments for this purpose. They are, 1) Education 2) Culture 3) Arts (4) Youth welfare and sports and (5) Women welfare. If all the resources are used judiciously then economic development is possible. Since independence India's population has increased in number and the quality has also improved. Since the human resource is very important Gandhiji wanted to give more importance to decentralisation of industries and small scale industries.

QUESTION AND ANSWERS:

Dam: A barrier across the flowing water.
Groundwater:- Water which is obtained from a depth of more than 15 m is known as groundwater.

Multipurpose Project:- A river valley project which serves a number of purposes simultaneously such as irrigation, flood control and generates hydroelectricity. Eg. Bhakra Nangal.

Perennial Canals: Canals developed by diverting water from rivers that flow throughout the year.

Rainwater Harvesting:- it is a technique of increasing the recharge of groundwater by capturing and storing rainwater, by constructing structures such as percolating pits, check dams etc.

Drip Irrigation:- A type of irrigation were water gets dropped in the form of drops near the roots of the plant mainly to conserve the moisture.

Inundation Canal:- Canal meant for diverting flood waters mainly during the rainy season.

Rainwater harvesting:- It is a technique developed to store the rainwater, river water or groundwater to meet the needs of the population.
River water disputes:- Disputes concerned with the sharing of river water between states flowin through several states in India.

Q.1. State the factors responsible for the bad quality of water.

Ans.
i). Pollution of waterbodies by discharge of industrial effluents.
ii) . Use of fertilizers, pesticides in agricultural effluents.

Q. 2. Which river is known as River of sorrow? Why?

Ans. River Damodar is known as Sorrow of Bengal for its fury of floods.

Q. 3. Why are multipurpose projects developed after independence?

Ans. Multipurpose projects have been developed after Independence with the objective of integrated water resource management approach that would lead to the development of the nations.

Q. 5 State the main objectives of traditional dams.

Ans. Dams were traditionally built to stop rainwater and to impound rivers to provide water for irrigating the fields.

Q. 6. How is fresh water obtained?

Ans. The fresh water id obtained from precipitation, surface run off and ground water that is continually being renewed and recharged through the hydrological cycle.

Q.7. What is water scarcity? Mention any four factors responsible for water scarcity.

Ans. Storage of water is compared to its demand is knows as water scarcity.
Factors responsible:-
i ). Overexploitation of water resources.
ii). Improper management.
iii). Unequal access of water among different social groups.
iv). Industrialization and urbanization.

Q. 8 “Overpopulation or large and growing population can lead to water scarcity.” Explain.

Ans.
i ). More population means more demand for water.
ii). A large population means more water not only for domestic use but also to produce more food.
iii). To facilitate higher food grain production, water resources are being overexploited to expand the irrigated areas and dry season agriculture.
iv). Overutilization of water results in lowering of the groundwater levels.

Q. 9. ‘Large multipurpose projects also leads to land degradation. Explain.

Ans.
i). Irrigation has changed the cropping pattern of many regions with farmers shifting to water intensive crops. This has lead to the salinisation of the soil.
ii). Regulating and damming of rivers affect the natural flow of rivers causing poor sediment flow.
iii). Due to the dams, the flood plains are deprived of silt.
iv). Multipurpose projects induce pollution which leads to land degradation.

Q. 10. How is industrialization responsible for water scarcity? Explain.

Ans.
i). The ever increasing number of industries has made matter worse by exerting pressure on the existing freshwater resources.
ii). Industries need power which is produced from water. The power is produced by the multi-purpose projects.
iii). Industries are also responsible for making water hazardous for human use.

Q. 11. How had the growing population, industrialization and urbanization lead to water scarcity? Explain.

Ans.
i). Growing population:- Growing population is one of the basic factors which is responsible for the scarcity of water. Most of our cities are facing this problem due to overpopulation. A large population means more water not only for domestic use but also to produce more food.
ii). Commercialization of agriculture:- After the success of green revolution, our farmers are producing commercial crops. The commercial crops need more water and other inputs. Assured means of irrigation like tubewells and wells are responsible for the falling groundwater levels.
iii). Industrialization :- The post independent India witnessed intensive industrialization and urbanization. Today, large industrial houses are common in the form of industrial units of many MNCs. The ever increasing number of industries has made matters worse by exerting pressure on the existing freshwater resources.
iv). Urbanization :- Urbanization has also aggravated the problem of water scarcity. Most of our cities are over-populated. Overpopulation leads to over utilization of the water resources, and also pollutes the existing resources.

Q. 12. Why is there a need to conserve water resources?

Ans.
i). Water is necessary for life on earth. It is believed that life first originated in water before in invaded land. Water is in fact a pre-condition of life.
ii). Cultivation of crops depends on the availability of water. Water dissolves minerals and other nutrients in the ground. The roots of the plants draw this nutritious water from the soil. India is an agricultural country, so availability of water is a must.
iii) . Water is also important for industry. Its main function is for cooling.
iv). Water is also used for drinking and domestic consumption. The growing urbanization with its modern lifestyle has been demanding a greater share of water day by day.

Q.13. Distinguish between a dam and a multipurpose project. Dam

Ans.
i). A dam is a barrier across the flowing water that obstructs, dissects or retards the flow, often creating a reservoir lake or an impoundment.
ii). It is a traditional concept.

Multipurpose project
i). A multipurpose project is that which fulfils a variety of purposes at the same time, for example irrigation generation of electricity, flood control, fish breeding, soil conservation, etc.
ii). It is a modern concept.

14. Why multipurpose river valley projects are called the new temples of Modern India?

Ans.
i).Generation of power (electricity) :- These multipurpose projects are the main source of power generation. They provide us neat, pollution free and cheapest energy which is the backbone of industry and agriculture.
ii) Flood Control:- These projects control the floods because water can be stored in them. These projects have converted many rivers of sorrows into rivers of boon.
iii). Soil conservation:- These conserve the soil because they slow down the speed of water.
iv). Irrigation :- These projects are the main source of irrigation for our country. These irrigate the fields during the dry seasons. Many perennial canals have been dug and they irrigate dry areas.

Q. 15 . How may the multipurpose river projects become harmful for the country? Explain with four examples.

Ans.
i). Adverse effect on the fertility of the soil:- Due to construction of dams, there are no annual floods in the river. And because of this, the soil of the downstream region does not get nutrient rich silt. This decreases the fertility of the soil.
ii). Adverse impact on aquatic life:- Due to construction of dams on the rivers, the fish in the downstream area do not get sufficient nutrients material. Regulating and damming of rivers affect the natural flow of water causing poor sediment flow of downward, and excessive sedimentation at the bottom of reservoir. Dams also fragment rivers making it difficult for aquatic fauna to migrate for spawning i.e., to produce eggs.
iii ) Displacement of local communities:- The building of large dams results in displacement of local communities. The local people often have to give up their land and livelihood and their meagre (scant in amount) access and control over resources for the greater food of the nation.
iv) Change in the cropping pattern:- Multipurpose projects are responsible for providing assured means of irrigation to farmers. Due to this, most of farmers have changed the cropping pattern shifting to water intensive and commercial crops. This has lead to salinisation of soil leading to ecological imbalance.

Q. 16. Write a short note on Narmada Bachao Andolan.

Ans. Narmada Bachao Andolan is a movement initiated by environmentalists, farmers, tribal people and human rights activists against the construction of Sardar Sarovar Dam on Narmada river in Gujarat. It has become a controversial issue due to the problems in the form of displacement of local people, loss of livelihood, floods, deforestation, etc.

Q. 17 . Distinguish between Surface water and ground water.

Ans.
Surface Water
i). Water available on the earth’s surface in the form of river, streams, lakes and ponds.
ii). Quantity of surface water varies from time to time and from place to place as it s prone to evaporation and depends on rainfall.
iii). It is most easily available water which can be used for irrigation, power generation, navigation etc.

Ground Water
i). . Water seeped through the permeable rocks and is accumulated over a period of time.
ii). This water remains as a store house as it is not prone to evaporation.
iii). Groundwater is tapped through wells and tubewells or springs and can be used for irrigation, domestic and industrial purposes.

Q. 18 . Define the term rainwater harvesting. State any five objectives of rainwater harvesting.

Ans. Rainwater harvesting is a technique of increasing the recharge of groundwater by capturing and storing rainwater by constructing structures, such as dug wells, percolation pits, checkdams.
The objectives of rainwater harvesting are:-
1. To meet the increasing demand.
2 . To reduce run-off.
3. To avoid flooding of roads.
4. To raise groundwater level.
5 .To improve the quality of groundwater.

Q. 19. Discuss how rainwater harvesting in semi-arid and arid regions of Rajasthan is carried out.

Ans. In Semi-arid regions of Rajasthan every house had underground tankas to store the water for drinking purposes. These tankas are large and deep which were built inside the main house or the courtyard. They were linked to the sloping roofs of the houses through a pipe. Rainwater falling on the rooftops would run down through a pipe and stored in the underground tankas. The rainwater collected, is stored in the tankas providing drinking water till the neat rainy season, when all other sources are dried up, these tankas were beneficial to beat the summer heat as they keep the rooms cool. The rainwater or palar pani as commonly known in these parts is considered the purest form of natural water.

Q. 20. Mawsynram is the region of highest rainfall, yet it faces acute shortage of water. Why?

Ans. Mawsynram faces acute shortage of water as the rainwater harvested is inadequate to meet the needs of the people.

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Wednesday, May 13, 2009

QUESTION: Distinguish between Intensive Farming and Extensive Farming.
INTENSIVE FARMING
EXTENSIVE FARMING
Farmers grow more than one crop in the same land.
Farmers concentrate on one or two major commercial crops.
Extra care is needed to maintain the fertility of the soil.
No extra care is needed to maintain the fertility of soil.
In India, this type of farming is practised in the irrigated areas of the Northern Plains and the coastal areas of South India.
In India, this type of farming is practised in the north-western part and the Terai region.
Land holdings are small here.
Landholdings are large here.
Needs large capital.
Land may be left fallow.
Labour is cheap.
Labour is expensive.
Yield per hectre here is high.
Yield may not be very high.

Monday, April 20, 2009

A26 Do you like geography class? Why?

Hello

Do you like geography class? If you like/don't like, please give your reasons. Please do give your suggestions and ideas to make the class interesting.

So far we used these methods to teach geography classes.



  • Using LCD projector



























  • powerpoint lessons





  • videos on geography


  • students presenting seminar through powerpoint
  • conducting unit tests











    quiz

    online explanation


teaching through blog and conducting tests through blog http://www.brhectorsgeoworld.blogspot.com/ http://www.brhectorsworld.blogspot.com/





  • models and experiments



























  • through scoldings?????
  • group activities




Please give your comments and suggestions, please!

Saturday, April 4, 2009

hello, visit these sites

hello,
Click http://www.brhectorsworld.blogspot.com/ to see the first ICSE batch of students of Don Bosco School.
Do visit also http://www.icsefairtopic.com/ - you can get help for your subjects. It is highly recommended by Anirudh of Don Bosco who has been active memeber of this fourm. Thank you Anirudh for introducing this site to me.

Friday, March 20, 2009

News 3 Thundersnow Facts: Mysterious storms explained

Thunderstorms—like this one rolling over a Minnesota farm—usually form when warm, moist air near the ground rises, creating unstable air columns.In a rare phenomenon dubbed thundersnow, such conditions can occur in late winter or early spring, sparking thunder and lighting during snowstorms.Researchers are studying how these winter thunderstorms form with snow-imaging technology (above right).Photograph by Richard Olsenius/NGS (left) and courtesy Patrick Market (right)

"Thundersnow" Facts: Mysterious Storms Explained
Christine Dell'Amore
National Geographic News
March 3, 2009

The late-winter snowstorm that blanketed much of the eastern U.S. on Sunday and Monday packed some serious sound and fury—emphasis on sound.
Along with the snow clouds, a rare and little-known phenomenon known as thundersnow rumbled over parts of Georgia and South Carolina.
Thundersnow—when thunder and lighting occur during a snowstorm—most often appears in late winter or early spring, experts say.
That's because the ingredients for thundersnow—a mass of cold air on top of warm, plus moist air closer to the ground—often come together during that time.
What Causes Thundersnow
Thundersnow starts out like a summer thunderstorm, Market said. The sun heats the ground and pushes masses of warm, moist air upward, creating unstable air columns.
As it rises, the moisture condenses to form clouds, which are jostled by internal turbulence.
The "tricky part" for making thundersnow, Market said, is creating that atmospheric instability in the wintertime.
For thundersnow to occur, the air layer closer to the ground has to be warmer than the layers above, but still cold enough to create snow—a very precise circumstance.
In the recent southern U.S. thundersnow storms, for instance, the atmosphere became unstable enough that thunderstorms with rain developed. Those storms then moved north where the air was below freezing, said Howard Silverman, a National Weather Service senior forecaster in Sterling, Virginia.
The thundersnow events were also coupled with "pretty decent snowfall rates," at the rapid clip of more than two inches (five centimeters) an hour, Silverman said.
Heavier snowfall is usually linked to thundersnow, both experts agreed.
The University of Missouri's Market has done research showing that most of the time 6 inches (15 centimeters) of snow will accumulate within a 70-mile (113-kilometer) radius of a thundersnow event.
(Related news: "Volcanic Lightning Sparked by 'Dirty Thunderstorms,' Study Finds.")
How to See Thundersnow
Experiencing thundersnow requires being in the right place at the right time, said University of Missouri atmospheric scientist Patrick Market, who has received funding from the National Geographic Society's Expeditions Council. (The National Geographic Society owns National Geographic News.)
Even then, he said, you probably won't see anything but white.
"In a really nice thundersnow event, the sky [simply] gets bright. You don't see a lightning bolt. There's nothing for a second or two, and then you hear a rumble of thunder."
The best spots for catching thundersnow in person are Wolf Creek Pass, Colorado, and the eastern shores of Lake Ontario, Market said—two hot spots that he has pinpointed in his research.
Thundersnow can also occur along coasts, experts say, because that's where moisture from warm water can easily evaporate into the colder, drier air above.
(Watch an interactive animation of a thunderstorm.)
Thundersnow to Aid Weather Forecasts?
Market and colleagues track thundersnow storms in the field. After the researchers identify a winter storm, they release weather balloons, which are meant to reveal how the atmosphere becomes unstable.
By collecting data on pressure, temperature, humidity, and wind speed and direction—the five key factors meteorologists use to make predictions—Market and colleagues hope their thundersnow studies can help make future weather forecasts more accurate.

Tuesday, March 17, 2009

H 1 -HUMAN SETTLEMENT


HUMAN SETTLEMENTS

Q. What are the different patterns of rural settlement?


The main patterns of rural settlements are:

Linear Pattern

1. These type of settlements have two parallel rows of houses facing each other.

2. These linear settlements are mainly situated along the roads and streams.

3. These type of settlements are common in coastal Kerala, Manipur, Bala Ghat, Mandala and Raigrah districts of Madhya Pradesh and Chhattisgarh.

4. Linear settlements are also common feature of Nagaland.

5.Fishing villages in the coastal areas also look like linear cluster.


Radial Pattern

1. Radial pattern of rural settlement develops at a place where several roads converge on a nodal position.

2. The housing development clings to these roads and appear to be radiating from the nodal point.

Star-like Pattern

1. A village acquires a star-like pattern when streets radiate from a common centre.

2. Expansion of these villages due to population growth leads to the formation of a double radial pattern.

3. This type of pattern is more common in Tamil Nadu and Upper Ganga Plain.



Cross-shape or Rectangular Pattern

1. Such villages develop at the meeting place of two roads.

2. The streets are either parallel or perpendicular to each other and the settlement takes a rectangular shape.

3. These type of settlements are more common in the Northern Plain especially in the Ganga-Yamuna Doab.

4. These settlements arealso found in Tamil Nadu, Karnataka,Andhra Pradesh and thestates of South India.


T-shapePattern: Villages and towns confined between two rivers at their junction or confluences or between bifurcations of two roads eventually result in aT-shape pattern.


Fan Pattern

1. Fan shaped villages are found in deltaic and foothill areas.
2. Most of these settlements are located in alluvial fan areas of the Himalayan foothills and in the deltas of Mahandi, Godavari and Krishna rivers.

Circular Pattern

1. When the houses are constructed along the bank of a pond or a lake, the settlement take the shape ofcircle and is known as circular pattern.

2. These type of settlements are mainly found in Upper Ganga-Yamuna Doab, Trans-Yamuna Region and in parts of Madhya Pradesh, Gujarat and Maharashtra.

Semi-Circular Pattern

1. If the houses encircle the central sitting feature partly, the pattern will be semi-circular.
2. Bhimtal in Uttar Pradesh and Siwan in Rajasthan are good examples of Semi-circular pattern.

Q. What is the meaning of settlement? or What do you understand by human settlement?

Human settlement means cluster of dwellings of any type or size where humans live more or less permanently. It includes buildings in which they live or use and the paths and streets over which they travel. It also includes the temporary camps of the hunters and herders. It may consists of only a few dwelling units called hamlets or big cluster of buildings called urban cities.

Q. Define settlement.

Settlement refers togrouping of houses or huts with a certain layout plan and includes buildings meant for residential purposes, enclosure for animals, store houses for equipments or products andstreets or roads connecting them with each other.

Q. Give two example of Ancient Towns.

Varanasi and Madurai are two examples of Ancient cities.


Q. Define satellite towns.
An isolated zone or town growing up at some distance fro
m the main city andfunctionally linked with it.

SETTLEMENT TYPES

Q. What are the two different types of Human settlements classified on the basis of size and function? or Mention the different types of settlements.

There are two types of settlements:

1. Rural Settlements

2. Urban Settlements


1. Urban settlements:

i. These types of settlement are nodal in character and have secondary and tertiary activities.

ii. The chief occupation of the people of urban areas is non-agricultural i.e.industry, trade and services.

iii. The major function of an urban area are trades and commerce, transport and communication, mining and manufacturing, defence, administration, cultural and recreational activities.

iv. Population density is high and the settlement size is large.

2. Rural settlements:

i. These settlements are chiefly concerned with primary activities such as agriculture, mining, fishing, forestry etc.

ii. Most of the people of rural settlement are engaged in agricultural work.

iii. The major function of rural settlement is agriculture and each settlement specializes in various activities.

iv. Population density is small and the settlement size is small.

Q. “There is no consensus on what exactly defines a village or a town.” Justify the statement with examples.

Settlement is classified into urban and rural, but there is no consensus:

i. Population size is small in rural settlement than urban settlements but it is not a universally applied because many villages of India and China have population exceeding that of some towns of Western Europe and United States.

ii. People living in villages pursued agriculture or other primary activities, but presently in developed countries, large sections of urban populations prefer to live in villages even though they work in the city.

iii. Petrol pumps are considered as a rural function in the United States while it is an urban function in India.

iv. Facilities available in the villages of developed countries may be considered rare in villages of developing and less developed countries.

Q. Explain the two types of settlements classified on the basis of shape.

Ans. Settlements can also be classified on the basis of shape and pattern into:

A. Compact settlements:-

i. In these settlement houses are built very close to each other.

ii. Such settlements are found in river valleys and fertile plains.

iii. The people are closely tied and share common occupations.

B. Dispersed settlements:-

i. In these settlements houses are built far apart from each other.

ii. These settlements consist of one or two houses and cultural feature such as a church or a temple binds the settlement together.

iii. Such settlements are found over hills, plateau and highlands.

RURAL SETTLEMENTS

Q. What are rural settlements?

Ans. Rural settlements are most closely and directly related to land. They are dominated by primary activities such as agriculture, animal husbandry, fishing etc. The settlements size is relatively small.

Q. Explain the factors which influence the location of rural settlements.

Ans. Rural settlements are influenced by following factors:

i. Water Supply: Usually rural settlements are located near water bodies such as rivers, lakes, and springs where water can be easily obtained. The need for water drives people to settle in islands surrounded by swamps or low lying river banks. Water supply is main factor because water is used for drinking, cooking and washing, rivers and lakes can be used to irrigate farm land, water bodies also have fish which can be caught for diet and navigable rivers and lakes can be used for transportation.

ii. Land: People choose to settle near fertile lands suitable for agriculture. Early settlers chose plain areas with fertile soils. In Europe villages are found near gently sloping land, in south East Asia villages are near low lying river valleys and coastal plains suited for wet rice cultivation.

iii. Upland: Villages are located on uplands which is not prone to flooding. Thus, in low lying river basins people chose to settle on terraces and levees which are “dry points”. In tropical countries people build their houses on stilts near marshy lands to protect themselves from flood, insects and animal pests.

iv. Building Material: The availability of building materials- wood, stone near settlements is another factor. Early villages were built in forests where wood was plentiful. In African Savanna’s mud bricks are used as building materials and the Eskimos, in Polar Regions, use ice blocks to construct igloos.

v. Defence: During the times of political instability, war, aggression of neighbouring groups villages were built on defensive hills and islands. In Nigeria, villages are built on upstanding rocks; in India most of the forts are located on hills.

Q. Describe the different types of rural settlements patterns.

Patterns of rural settlements is influenced by the site of the village, the surrounding topography and terrain.

i. On the basis of setting : The main types are

a. Plain villages,

b. Plateau villages,

c. Coastal villages,

d. Forest villages and

e. Desert villages.

ii. On the basis of functions : There may be

a. Farming villages,

b. Fishermen’s villages,

c. Lumberjack villages,

d. Pastoral villages etc.

iii. On the basis of forms or shapes of the settlements : These may be a number of geometrical forms and shapes such as:

a. Linear pattern : In such settlements houses are located along a road, railway line, river, canal edge of a valley or along a levee.

b. Rectangular pattern : Such patterns of rural settlements are found in plain areas or wide inter-montane valleys. The roads are rectangular and cut each other at right angles.

c. Circular pattern : Circular villages develop around lakes, tanks and sometimes the village is planned in such a way that the central part remains open and is used for keeping the animals to protect them from wild animals.

d. Star like pattern : Where several roads converge, star shaped settlements develop by the houses built along the roads.

e. T-shaped, Y-shaped, Cross-shaped or cruciform settlements : T –shaped settlements develop at tri-junctions of the roads.

Y–shaped settlements emerge as the places where two roads converge on the third one and houses are built along these roads. Cruciform settlements develop on the cross-roads and houses extend in all the four direction.

f. Double village : These settlements extend on both sides of a river where there is a bridge or a ferry.

Q. What are the different factors that are responsible for different types of rural settlements?

The different factors and conditions that are res

ponsible for different types of settlements are:

1. Physical Features:

a. Nature of terrain

b. Altitude

c. Climate

d. Availability of water


2. Cultural and Ethnic Factors

a. Social structure

b. Caste

c. Religion


3. Security Factors

a. Defence against thefts and robberies

Q.Describe the major problems of rural settlements in developing countries.

Major problem of rural settlements are:

i. Rural settlements in the developing countries have poor infrastructure facilities.

ii. Supply of water to rural settlements in developing countries is not adequate. People in villages, particularly in mountainous and arid areas have to walk long distances to fetch drinking water.

iii. Water borne diseases such as cholera and jaundice are common problem because of lack of safe drinking water and unhygienic conditions.

iv. Villages are adversely affected by the conditions of drought and flood. This in turn affects the crop cultivation.

v. The absence of toilet and garbage disposal facilities cause health related problems.

vi. The houses made up of mud, wood and thatch get damaged during heavy rains and floods.

vii. Most houses have no proper ventilation.

viii. Unmetalled roads and lack of modern communication network causes difficulties in providing emergency services during floods.

ix. It is also difficult to provide adequate health and educational infrastructure for large rural population. The problem is particularly serious where houses are scattered over a large area.

Q. What are the main factors that influence the size and spacing of the rural settlements?

The main factors influencing the size and spacing of villages are:

1. Productivity of land

2. Non-farm activities in the area

3. Transport System

4. Socio-Ethnic factors or traditions

5. Techno-Economic organisations

6. Historical and political processes


Q. The internal structure of Indian rural house is
according to the life style, social and economic status of the inhabitants. Explain the statement by giving few examples.
The rural houses in India are typical in their design and layout. The internal structure of the house is according to the lifestyle, economic and social status of the inhabitants. In India rural house types and their building material shows regional distinction and local influences.

1. A distinguished feature of the Indian house is the courtyard (Angan). It is used forfamily performance.

2. In southern India, a house has more than one c

ourtyard. This has the influence of their temples.

3. In the fishing villages of Kerala, the courtyard is often open ended.

4. In the cold and wet highlands, an over hanging
verandah is found.

URBAN SETTELEMENTS

Q. Define the term town.
Town is defined as an urban settlement which has population less than one lakh and where the occupation of people are generally other than farming, fishing or lumbering.

Q.Why do the cities become multi functional?
There is not any one function town because the functions get so intertwined that the city cannot be categorised in a particular functional class. Specialized cities as they grow into metropolis become multi-functionalin industry, business, administration andtransport etc.

Q. Give the classification of towns of India by urban historians.
Urban historians classify towns of India as:

1. Ancient Towns:

There are 45 ancient towns in India which are over 2000 years old.

2. Medieval Towns:

There are about 100 towns in India which originated in the medieval period.

3. Modern Towns:

These towns were developed by the Britishers and othe
r European colonizers.

Q. How are urban settlements classified around the world? OR What are the three common bases of classifying a settlement as urban around the world?

Urban settlements are classified on the basis of its size of the population, occupational structure and administration.

1. Population size: - in India a settlement having population more than 5000 persons is called urban. In Japan it is 30000 persons whereas in Sweden it is 250 persons. The cut off figure depends on the density of population in the country.

2. Occupational structure: - besides population size, occupation is also taken as the criteria. In India, if more than 75 percent of workforce is engaged in nonagricultural activities then the settlement is called as urban. Other countries have their own criteria for e.g. in Italy it is 50 percent.

3. Administrative structure: - in India a settlement is classified as urban if it has a municipality, cantonment board or a notified area. In Brazil any administrative centre is termed as urban.

Q. Explain the role of site and situation in determining the location and expansion of towns.

Ans. Location of urban centres is influenced by their function. Site refers to the actual piece of ground on which the settlement is built. Situation refers to the location of the settlement in relation to the surrounding areas.

i. Strategic towns require sites offering natural defence;

ii. Mining towns require the presence of economically valuable minerals;

iii. Industrial towns generally need local energy supplies or raw materials;

iv. Tourist centres require attractive scenery, or a marine beach, a spring with medicinal water or historical relics,

v. Ports require a harbour.

vi. Availability of water, building materials and fertile land also plays an important role in locating urban settlements.

vii. The urban centres which are located close to an important trade route have experienced rapid development.

Q. State any four important functions of urban centres.

Ans. Dominant functions of urban areas are:

i. The earlier functions of towns were related to administration, trade, industry, defence and religious.

ii. Today, towns perform multiple functions such as, recreational, residential, transport, mining, manufacturing and most recently activities related to information technology.

iii. Some towns are known for their functions for example, Sheffield as an industrial city, London as a port city, Chandigarh as an administrative city.

iv. Large cities have a rather greater diversity of functions.

Q. Describe five functional classifications of towns in the world. In what ways towns and cities of the world are functionally classified?

1. Administrative Towns: - National capitals, which have headquarters of the administrative offices of Central Government, are called administrative towns, such as new Delhi, Canberra, Moscow, and Washington.

2. Defence Towns: - Centres of military activities are known as defence towns. They are of three types: Fort towns, Garrison towns and Naval bases. Jodhpur is a fort town; Mhow is a garrison town; and Kochi is a naval base.

3. Cultural Towns: - towns famous for religious, educational or recreational functions are called cultural towns. Places of pilgrimage, such as Jerusalem, Mecca, Jagannath Puri and Varanasi etc. are considered as religious towns. There are also recreational towns such as Las Vegas in the USA.

4. Industrial Towns: - Mining and manufacturing regions. Dhanbad and Khetri are examples of mining towns. Towns which have developed due to setting up of industries such as Jameshdpur are called industrial towns.

5. Trading and Commercial Towns: - Many old towns were famous as trade centres such as Lahore in Pakistan, Baghdad in Iraq and Agra in India. Some towns have developed as transport towns such as Rotterdam in the Netherlands, Aden in Yemen and Mumbai in India are port towns.

Q Explain the four types of urban settlement on the basis of its size, service and function.

Ans. Depending on the size and the services available and functions rendered, urban centres are designated as town, city, million city, conurbation, and megalopolis.

i. Town: Population size in town is higher than the village. Functions such as, manufacturing, retail and wholesale trade, and professional services exist in towns.

ii. City: A city may be regarded as a leading town. Cities are much larger than towns and have a greater number of economic functions. They tend to have transport terminals, major financial institutions and regional administrative offices. When the population crosses the one million mark it is designated as a million city.

iii. Conurbation: The term conurbation was coined by Patrick Geddes in 1915 and applied to a large area of urban development that resulted from the merging of originally separate towns or cities. Greater London, Greater Mumbai, Manchester, Chicago and Tokyo are examples.

iv. Megalopolis: This Greek word meaning “great city”, was popularised by Jean Gottman (1957) and signifies ‘super- metropolitan’ region extending, as union of conurbations. The urban landscape stretching from Boston in the north to south of Washington in U.S.A. is the best known example of a megalopolis.

Q. Write a short notes on evolution of towns in India?

Towns florished since prehistoric times in India. Even at the time of Indus valley civilisation, towns like Harappa and Mohanjodaro were in existence. The following period has witnessed evolution of towns. It continued with periodic ups and downs until the arrival of Europeans in India in the eighteenth century On the basis of their evolution in different periods, Indian towns may be classified as: 1) Ancient Towns 2) Medieval towns and 3) Modern towns.

Q What is the criteria for census towns?
The main criteria for census towns are:
  1. A minimum population of 5000 persons.
  2. At least 75% of male working population engaged in non agricultural pursuits.
  3. A density of population of at least 400 persons per sq. km.

Q. Mention the types of towns identified by Census of India 2001.

The census of India identifies two types of towns:
  1. Statutory Towns
  2. Census Towns
Q. Define statutory towns.
All places which have municipal, or corporation, or cantonment board, or a notified town area committee areknown as statutory towns.

Q Define metropolitan cities and how are they different from mega cities?
Cities having population varying from one to five millions are called metropolitan cities while those with more than five million are known as mega cities.

Q. How can one identify an urban agglomeration?
Any urban agglomeration may consist of any one of the following three combinations:
  1. Atown and its adjoining urban outgrowths,
  2. Two or more contiguous towns with or without their outgrowths,
  3. Acity and one or more adjoining towns with their outgrowths together forming a contiguous spread.
Q. What are the main characteristics of Indian cities?
The main characteristics of Indian cities are:
  1. Most towns and cities are overgrown villages.
  2. People are even more rural in their habits and attitude which reflects their socio-economic outlook.
  3. Several cities have slums caused by migration of rural people without much improvement in infrastructure.
  4. Many cities have distinct marks of earlier rulers and old functions.
  5. Functional segregation is distinctly rudimentary and cannot be compared with western cities.
  6. Social segregation of population is based either on caste, religion, income or occupation.
Q. Give the functional classification of towns and cities.
On the basis of dominant or specialized functions, Indian cities and towns can be broadly classified as follows:
1. Administrative Towns and Cities
Towns supporting administrative headquarters of higher order are administrative towns such as New Delhi, Chandigarh etc.

2. Industrial Towns

Industries constitute prime motive force of these cities such as Mumbai, Salem, and Coimbatore etc.

3. Transport Cities

They may be primarily engaged in export and import activities such as Kandla, Kochchi, Vishakhapatnam, etc. or hubs of inland transport such as Agra, MugalSarai etc.

4. Commercial Towns

Towns and cities specializing in trade and commerce are kept in this class. Kolkata, Saharanpurare some examples.

5. Mining Towns

These towns have developed in mineral rich areas such as Raniganj, Jharia, Digboi, Ankaleshwar, Singrauli, etc.

PROBLEMS OF URBANISATION

Q. What is urbanization? What are the five major problems associated with urban settlements in developing countries? OR Describe the five problems faced by developing countries due to high urbanization.

Urbanization: - is the process of change from rural to urban population. Most cities in developing countries are unplanned.

Major problems of urban areas in developing countries are:

1. Economic Problems :

a. Over urbanization or the uncontrolled urbanization in developing countries is due to large-scale in-migration of rural people.

b. Decreasing employment opportunities in the rural as well as smaller urban areas has caused large scale rural to urban migration.

c. The huge migrant population in urban areas creates stagnation and generates a pool of unskilled and semi-skilled labour force.

d. Urban areas suffer from shortage of housing, transport, health and civic amenities.

e. A large number of people live in substandard housing i.e. slums and squatter settlements or on the streets.

f. Illegal settlements called squatter settlement are growing as fast as the city.

2. Socio-cultural Problems : Cities in the developing countries suffer from several social ills.

a. Inadequate social infrastructure and basic facilities is due to lack of financial resources and over-population in the cities.

b. The available educational and health facilities remain beyond the reach of the urban poor.

c. Cities suffer from poor health conditions.

d. Lack of employment and education tends to aggravate the crime rates.

e. Male selective migration to the urban areas distorts the sex ratio in these cities.

3. Environmental Problems :

a. The large urban population in developing countries uses and disposes off a huge quantity of water and all types of waste materials.

b. Many cities of the developing countries do not provide the minimum required quantity of drinkable water and water for domestic and industrial uses.

c. An improper sewerage system creates unhealthy conditions.

d. Massive use of traditional fuel in the domestic as well as the industrial sector severely pollutes the air.

e. The domestic and industrial wastes are either let into the general sewerages or dumped without treatment at unspecified locations.

f. Huge concrete structures of buildings create heat in the city environment.

Q. What measures can be taken to ease the problems of urban areas in developing countries.

A major problem of urban areas is the large-scale immigration of rural people. It is due to high population growth than the generation of employment and economic opportunities in rural areas.

i. It is urgent to eradicate rural poverty

ii. Improve the quality of living conditions as well as create employment and educational opportunities in rural areas.

iii. Balance must be created between rural and urban areas in their different economic, social and environmental conditions.

Q. What is the main deciding factor for the location of villages in desert region?
Water is the main deciding factor for the location of villages in desert region.

Q. What is the basic unit of residence?
The basic unit of residence is a house which may be a hut or an elaborately built mansion or an apartment.

Q. Give classification of towns and cities on the basis of the size of population. With the help of pie diagram.

The classification of towns and cities on the basis of their population by the census of India is as follows:

Class

Population Size

Number

Population

(Million)

% of total Urban Population

% Growth 1991-2001

Total

5161

285.35

100

31.13

I

1,00,000 and more

423

172.04

61.48

23.12

II

50,000-99,999

498

34.43

12.30

43.45

III

20,000-49,999

1386

41.97

15.00

46.19

IV

10,000-19,999

1560

22.60

8.08

32.94

V

5000-9,999

1057

7.98

2.85

41.49

VI

Less then 5000

227

0.80

0.29

21.21

Q.Differentiate between Rural and Urban settlements.

Rural Settlements

Urban Settlements

1. People are mainly engaged in primary activities, basically in agriculture.

1. People are mainly engaged in secondary and tertiary activities of which industry, trade, transportation and services are important.

2. Rural settlements supply food and other raw materials to the people of urban settlements.

2. Cities provide goods and services not only for themselves but also for people of the rural countryside, in return for food and raw materials.

3. The rural settlements depend on land to carry out their primary economic activities. Since each family needs a fairly large area of crop, pasture or forest land, villages are normally of small size. There can be rural settlements of a single family called homestead.

3. Urban settlements are much larger in size with a few thousand to a few lakh persons living in such settlements. They present a compact look, with closely spaced houses and streets without much open space. Much bigger cities with a population of over one million are called metropolis or megapolis.

4. Rural people are less mobile and their social relations are intimate. They employ simple techniques to perform their activities and their pace of life is slow.

4. Life of urban people is complex and fast. Their social relations are formal and institutionalised.


Q. What are garrison towns? What are their functions?

These towns are also calledcantonment towns. A cantonment is group of temporary or semi-permanent military quarters. The main function of these towns is related with defence. India currently has 62 cantonments in 16 different areas, not including smaller 'sub-cantonments' in the same regional area.

Q. What are the main features of Indian houses?
The main features of Indian houses are:
  1. A courtyard is a typical feature of the Indian houses.
  2. Every house in villages has separate space for storing agricultural produce for draught and dairy animals.
  3. Roofs according to weather conditions isanother feature and arebuilt accordingly.
  4. The building material for the construction of houses is procured from local sources such as mud, thatch, bamboo, pieces of stones, wood or unburnt bricks.
  5. Cultural values play an important role in determining the direction of the main entrance. The internal layout plan and the architecture reflects the ethnic values of the community.
  6. Burnt bricks, cement and concrete are being used by rich people.
Q. Define Central Business District.
The central business district is the traditional business core of a community, characterized by a relatively high concentration of business activity within a relatively small area. The CBD is usually the retail and service center of a community. Because of its compactness, there is usually an emphasis on pedestrian traffic in the CBD. It is also considered as the functional centre around which the rest ofthe city is centred forshopping, office accommodation, leisure facilities, buildings for recreational use, public museums, art galleries and governmental functions. Generally the area of highest land values is located within a city.



Q. Distinguish between compact and dispersed settlements.

Compact Settlements

Dispersed Settlements

1. Compact settlements are normally found in highly productive alluvial plains.

1. Dispersed settlements are normally found in mountainous high lands ridges, forested areas, deserts and semi-deserts.

2. Main occupation is agriculture.

2. Main occupation is cattle-rearing, lumbering etc.

3. The houses are located adjacent to each other and form a compact block. They are comparatively small in size and provide less living space.

3. The houses are located at a distance from each other. They are comparatively bigger and provide more living space.

4. Fields in compact settlements are small.

4. Fields in dispersed settlements are large.

5. Streets are generally dirty due to lack of sanitation.

5. Dispersed settlements are normally neat and clean.


Q.) Define the term Conurbation.
The term Conurbation was coined by Patrick Geddes in 1915. Conurbation is applied to a large area of urban development that resulted from the merging of originally separate towns and cities.

Q.) Why the study of human settlements is considered as basic to human geography?
The study of human settlements is basic to human geography because the form of settlements in any particular region reflects human relationship with the environment and the main aim of human geography is to study the relationship of human with the environment.

Q. Write a short note on slums.
The United Nations agency UN HABITAT defines a slum as a heavily populated urban area characterised by substandard housing and squalor. The term is traditionallyused forhousing areas that were once respectable but which deteriorated as the original dwellers moved on to newer and better parts of the city, but has come to include the vast informal settlements found in the cities in developing nations.

Basically slums are the unplanned and haphazard growth of urban centres, particularly due to large scale migration of rural people to the urban areas, without corresponding improvemnt in infrastructure.This has lead to the growth of squatter settlements which are known as slums.

According to 2001 census figures, as many as 607 towns and cities in 26 states are reported to have slums, housing about 40.3 million slum dwellers. This is 22.58% of the urban population. Estimates for the four largest cities Mumbai, Kolkata, Delhi and Chennai are believed to be having around one-third of India's slum population.




Q. On the outline map of India show the four major metropolitan cities.