Land Resources, Land Use Pattern in India, Land Degradation & Conservation
Medium (Application & Explanation)
1. Why is land considered a finite and foundational resource for India’s development? Explain with reasons and examples.
Answer:
- Land is a finite resource. We cannot increase it, but our needs keep growing.
- It supports agriculture, which gives food and jobs to millions in India.
- It holds forests, which protect biodiversity, climate, and soil.
- It provides space for settlements, roads, railways, and industries.
- It has minerals and supports mining and energy projects.
- If land is overused or degraded, it affects food security and livelihoods.
- A balanced use of land helps in sustainable development for today and tomorrow.
- So, careful planning of land is a national priority.
2. Classify the different types of land based on use in India and explain why a balanced land-use mix is necessary.
Answer:
- India uses land for agriculture (Net Sown Area), forests, grazing, settlements, and industries.
- It also has barren and waste land which needs recovery.
- A balanced mix keeps food production strong and nature safe.
- Too much urbanization can reduce farmland and forests.
- Too much farming on fragile land can cause soil erosion and desertification.
- Grazing land supports livestock and protects pastures.
- Forests must grow to reach the 33% ideal for ecological balance.
- Good mix means growth with conservation.
3. How do physical, economic, and social factors shape land utilization in India? Explain with examples.
Answer:
- Physical factors like climate, soil, water, and relief decide what land can support.
- For example, alluvial plains suit intensive farming. Hills suit terrace farming and forests.
- Economic factors include technology, capital, and market access.
- Irrigation and drip systems can turn dry areas into productive farms.
- Social and cultural factors include population density, traditions, and policies.
- High population pushes urban growth and converts farms into non-agricultural land.
- Government schemes guide land use, like watershed development and afforestation.
- Together, these factors shape where and how land is used.
4. Examine India’s land use pattern. What do the shares tell us about priorities and pressures? Suggest two corrective steps.
Answer:
- Forests are about 21%. This is below the 33% ideal for balance.
- Agriculture covers about 45%, showing high dependence on farming.
- Fallow land is around 17%, which shows land needs restoration and inputs.
- Barren/waste land is about 8%, which needs reclamation.
- Non-agricultural land is about 5%, but it is rising due to urban growth.
- Corrective step 1: Grow forests and agroforestry on degraded land, not on good farms.
- Corrective step 2: Use land zoning to protect prime farmland from random urban expansion.
- Also promote efficient irrigation and soil health to reduce fallows.
5. What is land degradation? Explain its natural and human causes and effects on farming, water, and biodiversity.
Answer:
- Land degradation is the decline in land quality and productivity.
- Natural causes include soil erosion by wind and water, floods, and droughts.
- Human causes include deforestation, overgrazing, and over-irrigation.
- It also includes mining, industrial waste, and unplanned urbanization.
- Effects: Loss of soil fertility, falling crop yields, and desertification.
- Water scarcity increases as soil loses moisture-holding capacity.
- Biodiversity declines due to loss of habitat and pollution.
- It threatens food security and rural livelihoods.
6. Explain four soil and water conservation techniques and how they reduce land degradation.
Answer:
- Contour ploughing: Plough along natural contours. It slows runoff and reduces erosion.
- Terrace farming: Build steps on hills. It stops soil from washing away on slopes.
- Mulching: Cover soil with crop residues. It saves moisture and reduces weeds.
- Crop rotation: Change crops by season. It keeps nutrients balanced and controls pests.
- Drip/sprinkler irrigation: Use water efficiently. It prevents waterlogging and salinity.
- Afforestation: Plant trees to bind soil and recharge water.
- Check dams and bunds: Slow water, increase infiltration, and reduce gullies.
- Together, these make land productive and sustainable.
High Complexity (Analysis & Scenario-based)
7. A fertile district is urbanizing fast. Net Sown Area is shrinking. As a planner, design a balanced land-use plan to protect food security.
Answer:
- Declare agro-zones where prime farmland is legally protected.
- Promote vertical cities and infill development to reduce land spread.
- Create urban growth boundaries and plan mixed-use hubs near transport.
- Encourage rooftop gardens, peri-urban agriculture, and community farms.
- Build logistics hubs close to farms to cut post-harvest loss.
- Make developers fund green buffers, water recharge, and soil banks.
- Use Transfer of Development Rights (TDR) to shift building rights away from farms.
- Monitor land use with GIS, and involve panchayats and citizens in decisions.
8. A semi-arid block faces salinization from over-irrigation and loss of grass cover due to overgrazing. Prepare an integrated action plan.
Answer:
- Shift to drip irrigation and laser levelling to cut water use.
- Improve drainage; add sub-surface drains where needed to remove salts.
- Apply gypsum in sodic soils; grow salt-tolerant crops for recovery.
- Plan rotational grazing and set up fodder banks and stall-feeding.
- Reseed pastures with hardy grasses; protect with live fencing.
- Build check dams, percolation tanks, and contour bunds for recharge.
- Promote mulching and crop residue retention to save moisture.
- Use community rules and watershed committees for monitoring and upkeep.
9. An open-cast mine will close in five years. Draft a mine closure and land reclamation roadmap that restores ecology and livelihoods.
Answer:
- Prepare a Progressive Mine Closure Plan with yearly targets and budgets.
- Backfill pits, grade slopes, and stabilize with geo-matting and grasses.
- Treat overburden dumps; plant native trees and develop biodiversity parks.
- Convert safe pits into water reservoirs with wetlands for birds and recharge.
- Ensure topsoil conservation and reuse it for plantation.
- Create alternative jobs: eco-tourism, agroforestry, fisheries, and skill centres.
- Enforce pollution control and continuous water/air quality monitoring.
- Hand over maintained sites to local bodies with funded maintenance.
10. India aims to raise forest cover from ~21% to 33% without hurting food security. Evaluate trade-offs and propose a strategy.
Answer:
- Trade-off: More forests can reduce farmland if done badly.
- Solution: Plant on degraded and wastelands first, not on prime farms.
- Promote agroforestry and farm forestry to grow trees with crops.
- Expand urban forests, roadside and riverbank plantations.
- Restore commons: village wastelands, pastures, and hills.
- Use schemes like NAP, NMSA, and Watershed for funding and support.
- Involve communities through Joint Forest Management and fair benefit-sharing.
- Track results with GIS, and ensure native species for true biodiversity gains.
