Land Resources and Agriculture

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Summary

Land Resources and Agriculture

Land Use Categories

Forests: Area classified for forest growth may differ from actual forest cover.
Barren and Wastelands: Includes barren hilly terrains, deserts, and ravines that cannot be cultivated with current technology.

Changes in Land Use (1950-51 to 2019-20)

Increases:
- Area under non-agricultural uses
- Area under forest (demarcated, not actual cover)
- Current fallow lands
- Net area sown (due to use of culturable waste land)
Decreases:
- Barren and unculturable waste land
- Permanent pasture and grazing land
- Area under miscellaneous tree crops and groves

Observations

The increase in non-agricultural land is due to economic shifts towards industrial and service sectors.
Fluctuations in current fallow lands depend on rainfall and cropping cycles.
The net area sown has recently increased after utilizing culturable waste land.

Learning Objectives

Understand the different uses of land and its categorization.
Identify the role of land revenue department in maintaining land-use records.
Differentiate between geographical area and reporting area.
Explain the significance of forest cover versus classified forest area.
Recognize the characteristics of barren and wastelands.
Analyze changes in land-use categories in India from 1950-51 to 2019-20.
Discuss the impact of economic changes on land-use patterns.

Detailed Notes

Land Resources and Agriculture

Introduction

Land is utilized for various purposes: production, residence, and recreation.
Examples of land uses include schools, roads, parks, fields, and pastures.

Land Use Categories

Maintained by the land revenue department.
Categories contribute to the reporting area, differing from geographical area measured by the Survey of India.

Categories of Land Use:

Forests
- Actual forest cover differs from area classified as forest.
- Government demarcates area for forest growth.
Barren and Wastelands
- Includes barren hilly terrains, desert lands, and ravines.
- Typically unsuitable for cultivation with current technology.

Changes in Land Use (1950-51 to 2019-20)

Significant changes in land use categories over decades.
Key Observations:
- Increase in areas under non-agricultural use due to economic changes.
- Increase in forest area classified, not necessarily actual forest cover.
- Fluctuations in current fallow lands due to rainfall and cropping cycles.
- Recent increase in net area sown due to use of culturable waste land.

Conclusion

Understanding land use is crucial for managing resources and planning for agricultural development.

Exam Tips & Common Mistakes

Common Mistakes and Exam Tips

Common Pitfalls

Misunderstanding Land Use Categories: Students often confuse the definitions of barren land, wasteland, and culturable wasteland. Ensure clarity on these terms.
Confusing Reporting Area with Geographical Area: Remember that reporting area can change based on land revenue records, while geographical area remains constant.
Assuming Increase in Forest Area Equals Increase in Forest Cover: An increase in the area classified as forest does not necessarily mean an increase in actual forest cover.
Neglecting the Impact of Economic Changes on Land Use: Changes in the economy can significantly influence land use patterns; be aware of how these shifts affect agricultural land.

Exam Tips

Review Land Use Categories: Familiarize yourself with the different land use categories and their definitions as per land revenue records.
Understand the Importance of Current Fallow: Be prepared to explain how current fallow lands fluctuate due to rainfall and cropping cycles.
Analyze Changes Over Time: Practice comparing land use data from different years, focusing on the implications of increases and decreases in various categories.
Use Diagrams: If applicable, practice interpreting diagrams that show changes in land use over time, such as the one depicting changes from 1950-51 to 2019-20.

Practice & Assessment

Multiple Choice Questions

Gully erosion

Wind erosion

Salinisation of soils

Siltation of land

Correct Answer: C

Solution:

Salinisation of soils is a major form of land degradation in irrigated areas due to improper irrigation practices.

Gully erosion

Wind erosion

Salinisation of soils

Siltation of land

Correct Answer: C

Solution:

Salinisation of soils is the main form of degradation in irrigated areas, caused by improper irrigation practices leading to the accumulation of salts in the soil.

Japan and Australia

U.S.A. and Japan

Mexico and Philippines

Mexico and Singapore

Correct Answer: C

Solution:

HYVs of wheat and rice were developed in Mexico and the Philippines, which played a crucial role in the Green Revolution.

Current Fallow

Culturable Wasteland

Net Area Sown

Permanent Pastures

Correct Answer: B

Solution:

Land that is left fallow for more than five years is categorized as culturable wasteland.

Urban settlements

Rural settlements

Industries

Culturable wasteland

Correct Answer: D

Solution:

Culturable wasteland is not included in 'land put to non-agricultural uses'.

Japan and Australia

U.S.A. and Japan

Mexico and Philippines

Mexico and Singapore

Correct Answer: C

Solution:

High Yielding Varieties (HYVs) of wheat and rice were developed in Mexico and the Philippines, which significantly contributed to the Green Revolution.

Gully erosion

Wind erosion

Salinisation of soils

Siltation of land

Correct Answer: B

Solution:

Wind erosion is not typically a form of land degradation in irrigated areas, whereas salinisation of soils is a major issue.

Ragi

Jowar

Groundnut

Sugarcane

Correct Answer: D

Solution:

Sugarcane requires significant water and is not typically grown under dryland farming conditions, unlike crops like Ragi, Jowar, and Groundnut.

Gully erosion

Wind erosion

Salinisation of soils

Deforestation

Correct Answer: C

Solution:

In irrigated areas, salinisation of soils is a major form of land degradation, often caused by improper irrigation practices leading to the accumulation of salts in the soil.

Increase in forest cover

Expansion of urban and rural settlements and infrastructure development

Increase in culturable wasteland

Growth in agricultural land

Correct Answer: B

Solution:

The expansion of land under non-agricultural uses is primarily due to the growth of urban and rural settlements and the development of infrastructure, driven by the changing structure of the Indian economy.

High cost of modern agricultural inputs

Dependence on erratic monsoon

Lack of modern agricultural equipment

Fragmentation of landholdings

Correct Answer: B

Solution:

In dry regions, agricultural productivity is primarily low due to the dependence on erratic monsoon, which leads to inconsistent water supply for crops.

Switching from food crops to cash crops

Intensification of cropping over already cultivated land

Reducing the use of chemical fertilizers

Decreasing the net sown area

Correct Answer: B

Solution:

Post-independence, India focused on intensifying cropping on already cultivated land to increase foodgrain production.

Decrease in population

Growth of secondary and tertiary sectors

Increase in agricultural productivity

Abundance of cultivable land

Correct Answer: B

Solution:

The shift is primarily due to the growth of secondary and tertiary sectors, leading to increased non-agricultural land use.

Use of culturable wasteland for agricultural purposes

Increase in barren and wasteland

Decrease in area under non-agricultural uses

Reduction in forest area

Correct Answer: A

Solution:

The increase in net area sown is due to the use of culturable wasteland for agricultural purposes.

Gully erosion

Wind erosion

Salinisation of soils

Siltation of land

Correct Answer: C

Solution:

Salinisation of soils is the main form of degradation in irrigated areas.

Expansion of urban and rural settlements

Increase in forest cover

Reclamation of wastelands

Improved irrigation techniques

Correct Answer: A

Solution:

The area under non-agricultural uses has increased due to the expansion of urban and rural settlements, driven by the growth of secondary and tertiary sectors in the Indian economy.

Increase in forest cover

Expansion of urban and rural settlements

Increase in culturable wasteland

Increase in net sown area

Correct Answer: B

Solution:

The area under non-agricultural uses is increasing due to the expansion of urban and rural settlements.

Extensive and efficient efforts of afforestation

Increase in community forest land

Increase in notified area allocated for forest growth

Better peoples' participation in managing forest area

Correct Answer: C

Solution:

The increase in forest area is mainly due to the increase in notified area allocated for forest growth.

Net sown area

Permanent pastures and grazing lands

Culturable wasteland

Area under miscellaneous tree crops

Correct Answer: B

Solution:

Permanent pastures and grazing lands are mostly owned by village Panchayats or the Government.

Land left uncultivated for more than five years

Land under permanent pastures

Land used for non-agricultural purposes

Net sown area

Correct Answer: A

Solution:

Culturable wasteland is land that has been left fallow for more than five years.

Ragi

Jowar

Groundnut

Sugarcane

Correct Answer: D

Solution:

Sugarcane is not typically cultivated under dryland farming.

Grown in well-drained soils of hilly areas

Requires flat plains with high rainfall

Cultivated in desert regions

Grown in saline soil conditions

Correct Answer: A

Solution:

Tea is grown in well-drained soils of hilly areas, particularly in humid and sub-humid tropics.

Deforestation

Soil alkalisation and salinisation

Air pollution

Water scarcity

Correct Answer: B

Solution:

Faulty irrigation strategies have led to soil alkalisation and salinisation, particularly in irrigated areas, reducing soil fertility.

Extensive and efficient efforts of afforestation

Increase in community forest land

Increase in notified area allocated for forest growth

Better people's participation in managing forest area

Correct Answer: C

Solution:

The increase in the share of forest area is primarily due to the increase in the notified area allocated for forest growth, rather than an actual increase in forest cover.

Land under permanent pastures

Land left fallow for more than five years

Land used for non-agricultural purposes

Land under forest cover

Correct Answer: B

Solution:

Culturable wasteland refers to land that has been left uncultivated for more than five years and can be brought under cultivation after reclamation.

Japan and Australia

U.S.A. and Japan

Mexico and Philippines

Mexico and Singapore

Correct Answer: C

Solution:

HYVs of wheat and rice were developed in Mexico and Philippines.

Forests

Barren and Wastelands

Net Area Sown

All of the above

Correct Answer: D

Solution:

According to the land revenue records, land-use categories include forests, barren and wastelands, and net area sown among others.

Extensive and efficient efforts of afforestation

Increase in community forest land

Increase in notified area allocated for forest growth

Better people's participation in managing forest area

Correct Answer: C

Solution:

The increase in the share of forest area is mainly due to an increase in the notified area allocated for forest growth, not necessarily an increase in actual forest cover.

Soil erosion by water and wind

Salinisation of soils

Gully erosion

Siltation of land

Correct Answer: A

Solution:

Rainfed areas experience soil erosion by water and wind, often induced by human activities.

Uttar Pradesh

Rajasthan

Punjab

Gujarat

Correct Answer: A

Solution:

Uttar Pradesh is a leading producer of sugarcane with high yield levels.

Forests

Area under non-agricultural uses

Current fallow lands

Net area sown

Correct Answer: B

Solution:

The area under non-agricultural uses has increased the most due to the expansion of urban and rural settlements and the growth of industrial and service sectors.

Assam

Karnataka

Tamil Nadu

Kerala

Correct Answer: B

Solution:

Karnataka accounts for more than two-thirds of India's coffee production, making it the leading coffee-producing state.

Consistent rainfall throughout the year

Excessive use of groundwater

Erratic monsoon leading to both droughts and floods

High cost of irrigation infrastructure

Correct Answer: C

Solution:

Indian agriculture is heavily dependent on the monsoon, which is erratic and can lead to both droughts and floods, affecting crop production.

It allows for more efficient use of water resources.

It helps in reducing the dependency on chemical fertilizers.

It maximizes the use of available cultivable land to meet the food demands of a growing population.

It reduces the risk of soil degradation and erosion.

Correct Answer: C

Solution:

Increasing cropping intensity is important in India to maximize the use of available cultivable land to meet the food demands of a growing population, especially given the limited availability of new agricultural land.

Excessive use of pesticides and insecticides.

Lack of modern agricultural technology.

High pressure on land resources and low soil fertility.

Inadequate government policies and support.

Correct Answer: C

Solution:

The low productivity in India's rainfed areas is primarily due to high pressure on land resources and low soil fertility, which is exacerbated by the lack of irrigation and reliance on rain.

Sugarcane

Tea

Coffee

Wheat

Correct Answer: C

Solution:

Coffee is primarily grown in the highlands of the Western Ghats in Karnataka, Kerala, and Tamil Nadu.

Increasing the use of chemical fertilizers.

Implementing better irrigation management practices to prevent waterlogging and salinization.

Expanding the area under cultivation without considering soil health.

Reducing the cultivation of leguminous crops.

Correct Answer: B

Solution:

Implementing better irrigation management practices is crucial to prevent waterlogging and salinization, which are major causes of land degradation in irrigated areas.

It reduces the need for irrigation.

It increases the agricultural output without expanding the cultivated area.

It minimizes the use of fertilizers.

It decreases the dependency on monsoon rains.

Correct Answer: B

Solution:

Increasing cropping intensity allows for more crops to be grown on the same piece of land in a given year, thereby increasing agricultural output without the need to expand the cultivated area.

Extensive and efficient efforts of afforestation

Increase in community forest land

Increase in notified area allocated for forest growth

Better peoples' participation in managing forest area

Correct Answer: C

Solution:

The increase in the share of forest area is mainly due to the increase in the notified area allocated for forest growth, rather than an actual increase in forest cover.

Barren and wasteland cannot be cultivated with available technology, while culturable wasteland can be reclaimed for cultivation.

Barren and wasteland is used for non-agricultural purposes, while culturable wasteland is permanently fallow.

Barren and wasteland is privately owned, while culturable wasteland is government-owned.

Barren and wasteland is used for forestry, while culturable wasteland is used for grazing.

Correct Answer: A

Solution:

Barren and wasteland includes areas like desert lands and hilly terrains that cannot be cultivated with current technology. Culturable wasteland can be reclaimed and brought under cultivation.

High use of modern technology

Dependence on erratic monsoon

Excessive land reforms

High labor productivity

Correct Answer: B

Solution:

Agricultural productivity is low due to dependence on erratic monsoon, which affects crop production.

Fallow land

Marginal land

Net Area Sown

Culturable Wasteland

Correct Answer: B

Solution:

Marginal land is not listed as a land-use category in the provided excerpts.

Conversion of barren wastelands into cultivable land through reclamation.

Expansion of urban settlements into agricultural land.

Increased afforestation efforts in designated forest areas.

Construction of new highways and industrial zones.

Correct Answer: A

Solution:

The net sown area increases when previously uncultivable land, such as barren wastelands, is converted into land suitable for agriculture through reclamation practices.

Ragi

Jowar

Groundnut

Sugarcane

Correct Answer: D

Solution:

Sugarcane is not typically cultivated under dryland farming as it requires substantial water, unlike crops like Ragi, Jowar, and Groundnut which are more suited to dryland conditions.

Gully erosion

Wind erosion

Salinisation of soils

Siltation of land

Correct Answer: C

Solution:

Salinisation of soils is the main form of land degradation in irrigated areas, leading to a loss of soil fertility.

Tea

Coffee

Sugarcane

Wheat

Correct Answer: B

Solution:

Coffee is cultivated in the highlands of Western Ghats in Karnataka, Kerala, and Tamil Nadu.

High pressure on land resources

Lack of modern agricultural technology

Excessive rainfall

Abundance of labor

Correct Answer: A

Solution:

The high pressure on land resources leads to low productivity of crops in India.

Forests

Area under non-agricultural uses

Barren and unculturable wasteland

Permanent pastures and grazing lands

Correct Answer: B

Solution:

The area under non-agricultural uses has seen the highest rate of increase due to the expansion of urban and rural settlements, as well as the growth of industrial and service sectors.

Gully erosion

Wind erosion

Salinisation of soils

Siltation of land

Correct Answer: C

Solution:

In irrigated areas, salinisation of soils is a major form of degradation due to excessive irrigation and poor drainage systems.

Lack of modern agricultural equipment

High cost of fertilizers

Dependence on erratic monsoon

Lack of skilled labor

Correct Answer: C

Solution:

The main reason for low agricultural productivity in dry regions is the dependence on erratic monsoon, which affects the availability of water for irrigation.

Excessive rainfall leading to waterlogging.

High dependency on erratic monsoon rains.

Overuse of chemical fertilizers leading to soil toxicity.

Increased competition from international agricultural markets.

Correct Answer: B

Solution:

Dryland farming regions face the challenge of high dependency on erratic monsoon rains, which makes them vulnerable to both droughts and occasional floods.

True or False

Correct Answer: False

Solution:

The yield of sugarcane is higher in the southern regions of India compared to the northern regions.

Correct Answer: True

Solution:

The success of high yielding varieties (HYVs) of seeds depended on the assured supply of soil moisture through irrigation.

Correct Answer: False

Solution:

The Green Revolution initially benefited the irrigated areas of India, not the rainfed areas.

Correct Answer: True

Solution:

Net sown area refers to the actual land area where crops are planted and harvested, as defined in the land use categories.

Correct Answer: False

Solution:

The yield of sugarcane is actually lower in northern India compared to other regions like Maharashtra, Karnataka, Tamil Nadu, and Andhra Pradesh.

Correct Answer: False

Solution:

The introduction of HYVs required assured irrigation and other inputs like chemical fertilizers to be successful.

Correct Answer: True

Solution:

The expansion of urban and rural settlements, along with industrial and infrastructural development, has increased the area under non-agricultural uses.

Correct Answer: False

Solution:

The Green Revolution was initially confined to irrigated areas, not rainfed areas, as it required assured supply of soil moisture through irrigation.

Correct Answer: True

Solution:

The Green Revolution initially focused on irrigated areas, leading to regional disparities in agricultural development.

Correct Answer: False

Solution:

Land-use records are maintained by the land revenue department, not the Survey of India.

Correct Answer: False

Solution:

The land revenue records reflect the area classified as forest by the government, which may differ from the actual forest cover.

Correct Answer: True

Solution:

The increase in net area sown is a recent phenomenon due to the use of culturable wasteland for agricultural purposes.

Correct Answer: True

Solution:

The introduction of high yielding varieties (HYVs) of wheat and rice was a key component of the Green Revolution in India.

Correct Answer: False

Solution:

The area classified as forest in land revenue records is not necessarily equal to the actual forest cover. The former is the area identified and demarcated by the government for forest growth, which may increase without an actual increase in forest cover.

Correct Answer: False

Solution:

Degradation of land resources is largely due to faulty irrigation strategies and excessive use of chemicals, leading to issues like alkalisation, salinisation, and waterlogging.

Correct Answer: False

Solution:

The area classified as forest is the land identified and demarcated by the government for forest growth, which may differ from the actual forest cover.

Correct Answer: True

Solution:

In irrigated areas, the degradation of land resources is mainly caused by alkalisation and salinisation, along with waterlogging.

Correct Answer: True

Solution:

Net sown area is defined as the physical extent of land on which crops are sown and harvested.

Correct Answer: False

Solution:

The increase in forest area in India is due to an increase in the demarcated area under forest, not an actual increase in forest cover.

Correct Answer: True

Solution:

The Green Revolution initially benefited only irrigated areas, leading to regional disparities in agricultural development until the technology spread to other parts of the country.

Correct Answer: False

Solution:

The degradation of cultivable land in India is largely due to human-induced factors such as faulty irrigation strategies, excessive use of chemicals, and changes in cropping patterns.

Correct Answer: False

Solution:

The productivity of crops in India is generally lower compared to international levels, including the U.S.A., Russia, and Japan.

Correct Answer: True

Solution:

Despite occupying only 2.4% of the cropped area, India is a major producer of sugarcane, contributing about 19.7% of the world's production.

Correct Answer: True

Solution:

The Green Revolution was initially confined to irrigated areas, leading to regional disparities in agricultural development until the technology spread to other parts of the country.

Correct Answer: True

Solution:

Sugarcane is not cultivated under dryland farming as it requires more water.

Correct Answer: False

Solution:

The increase in the share of forest area is due to an increase in the demarcated area for forest growth, not an actual increase in forest cover.

Correct Answer: False

Solution:

Barren and wastelands, such as hilly terrains and deserts, are generally not suitable for cultivation with the current technology.

Correct Answer: True

Solution:

Southern states like Maharashtra, Karnataka, Tamil Nadu, and Andhra Pradesh have higher sugarcane yields compared to northern India.

Correct Answer: True

Solution:

The yield of crops in India is low compared to international levels, with lower per hectare output for crops like rice, wheat, and cotton.

Correct Answer: True

Solution:

The area under non-agricultural uses has increased due to the expansion of urban and rural settlements, as well as the growth of industrial and service sectors.

Correct Answer: True

Solution:

The land revenue records reflect the area classified as forest by the government, which may differ from the actual forest cover.

Correct Answer: True

Solution:

The increase in the net area sown is attributed to the conversion of culturable wasteland into agricultural land, reversing a previous trend of decline.

Correct Answer: False

Solution:

Barren and wastelands, such as barren hilly terrains and desert lands, normally cannot be brought under cultivation with the available technology.

Land Resources and Agriculture

AI Learning Assistant

Summary

Land Resources and Agriculture

Land Use Categories

Changes in Land Use (1950-51 to 2019-20)

Observations

Learning Objectives

Learning Objectives

Detailed Notes

Land Resources and Agriculture

Introduction

Land Use Categories

Categories of Land Use:

Changes in Land Use (1950-51 to 2019-20)

Conclusion

Exam Tips & Common Mistakes

Common Mistakes and Exam Tips

Common Pitfalls

Exam Tips

Practice & Assessment

Multiple Choice Questions

Q1.Which of the following is a primary cause of land degradation in irrigated areas?

Correct Answer: C

Q2.Which of the following is the main form of land degradation in irrigated areas?

Correct Answer: C

Q3.In which group of countries were high yielding varieties (HYVs) of wheat and rice developed?

Correct Answer: C

Q4.What is the term used for land that is left fallow for more than five years?

Correct Answer: B

Q5.Which of the following is NOT included in the land-use category of 'land put to non-agricultural uses'?

Correct Answer: D

Q6.Which of the following countries were involved in the development of High Yielding Varieties (HYVs) of wheat and rice?

Correct Answer: C

Q7.Which of the following is NOT a form of land degradation in irrigated areas?

Correct Answer: B

Q8.Which crop is typically not cultivated under dryland farming conditions?

Correct Answer: D

Q9.Which of the following is a significant cause of land degradation in irrigated areas of India?

Correct Answer: C

Q10.What is the primary reason for the expansion of land under non-agricultural uses in India?

Correct Answer: B

Q11.What is the primary reason for the low agricultural productivity in dry regions of India?

Correct Answer: B

Q12.What was one of the main strategies employed by India post-independence to increase foodgrain production?

Correct Answer: B

Q13.What is the primary reason for the shift of land from agricultural uses to non-agricultural uses in India?

Correct Answer: B

Q14.Which of the following is a reason for the increase in the net area sown in recent years?

Correct Answer: A

Q15.Which one of the following is the main form of degradation in irrigated areas?

Correct Answer: C

Q16.Which of the following is a primary reason for the increase in the area under non-agricultural uses in India between 1950-51 and 2019-20?

Correct Answer: A

Q17.What is the main reason for the increase in the area under non-agricultural uses in India?

Correct Answer: B

Q18.What is the main reason for the increase in forest area in the last forty years?

Correct Answer: C

Q19.Which of the following land-use categories is owned mostly by village Panchayats or the Government?

Correct Answer: B

Q20.Which of the following is classified as a culturable wasteland?

Correct Answer: A

Q21.Which one of the following crops is not cultivated under dryland farming?

Correct Answer: D

Q22.Which of the following is a characteristic of tea cultivation in India?

Correct Answer: A

Q23.What is a significant environmental problem caused by the faulty strategy of irrigation and agricultural development in India?

Correct Answer: B

Q24.Which of the following is a primary reason for the increase in the share of forest area in India over the last forty years?

Correct Answer: C

Q25.Which of the following best describes the concept of 'culturable wasteland'?

Correct Answer: B

Q26.In which of the following group of countries were HYVs of wheat and rice developed?

Correct Answer: C

Q27.Which of the following is a land-use category according to the land revenue records?

Correct Answer: D

Q28.What has been the main reason for the increase in the share of forest area in India over the last forty years?

Correct Answer: C

Q29.What is the main form of land degradation in rainfed areas?

Correct Answer: A