π Geography β Chapter 2
Land, Soil, Water, Natural Vegetation and Wildlife Resources
ποΈ 1. Introduction
The Earth provides us with essential resources like land, soil, water, forests, and wildlife.
These resources are limited and need to be used wisely to ensure balance in nature.
Human activities such as farming, industries, and urbanisation put pressure on these resources.
π 2. Land Resources
π Importance of Land
- Land is the base for agriculture, industries, forests, houses, and roads.
- Only 30% of the Earth’s surface is land; the rest is water.
- Not all land is habitable β mountains, deserts, and ice-covered regions are less suitable.
π Distribution of Land
- Mountains: 30% (forests, mining, tourism).
- Plains: 27% (agriculture, industries, settlements).
- Plateaus: 43% (minerals, forests, grazing land).
π‘ 3. Land Use Patterns
β Land is used for:
- Agriculture πΎ
- Forestry π³
- Pastures π
- Housing π
- Industries π
- Mining βοΈ
β οΈ Problems of Land Use:
- Deforestation π²β
- Overgrazing π
- Urbanisation ποΈ
- Landslides β°οΈ
- Soil erosion πͺοΈ
π± 4. Soil Resources
π What is Soil?
Soil is the topmost layer of the Earth where plants grow. It is formed by the weathering of rocks.
π§ͺ Factors of Soil Formation:
- Parent rock
- Climate
- Relief (slope, altitude)
- Flora, fauna, and microorganisms
- Time β³
π Types of Soil in India:
- Alluvial Soil β very fertile, good for crops πΎ
- Black Soil β rich in clay, ideal for cotton πΏ
- Red Soil β less fertile, needs fertilisers
- Laterite Soil β found in high rainfall areas, good for tea & coffee β
- Desert Soil β sandy, less moisture π΅
β οΈ Soil Degradation
- Overuse of chemical fertilisers
- Deforestation
- Overgrazing
- Mining activities
β Soil Conservation Methods
- Terrace farming β°οΈ
- Shelter belts π²
- Contour ploughing
- Crop rotation πΎ
π§ 5. Water Resources
π Importance of Water
- Essential for drinking π°
- Irrigation for crops πΎ
- Power generation β‘
- Industries π
- Domestic use π‘
π Distribution of Water
- 97% β Oceans (salty) π
- 2% β Ice caps βοΈ
- 1% β Fresh water (rivers, lakes, groundwater) π§
β οΈ Problems of Water
- Unequal distribution
- Overuse of groundwater
- Pollution of rivers and lakes
- Water scarcity in many regions
β Conservation of Water
- Rainwater harvesting βοΈ
- Drip irrigation π§π±
- Recycling wastewater
- Watershed management
π³ 6. Natural Vegetation
π Meaning
Natural vegetation refers to plants and trees that grow naturally without human interference.
π Types of Vegetation in India:
- Tropical Evergreen Forests β Western Ghats, NE India π΄
- Tropical Deciduous Forests β Central India π³
- Thorny Bushes β Rajasthan, Gujarat π΅
- Mountain Vegetation β Himalayas π²
- Mangrove Forests β Sundarbans ππΏ
β Importance
- Provide oxygen
- Source of timber, medicine, fruits
- Control climate and rainfall
- Prevent soil erosion
π 7. Wildlife Resources
π Importance
- Balance in ecosystem π¦
- Provide food, medicine, and raw materials
- Attract tourism ποΈ
β οΈ Threats
- Hunting & poaching π¦
- Deforestation π²β
- Pollution
- Climate change π‘οΈ
β Conservation
- National Parks ποΈ
- Wildlife Sanctuaries π
- Biosphere Reserves
- Laws against poaching
π 8. Tables & Diagrams
π‘ Land Use Pattern in India
| Land Use Type | Percentage |
|---|---|
| Agriculture | 51% |
| Forests | 22% |
| Grazing Land | 4% |
| Wasteland | 6% |
| Others (housing etc) | 17% |
π³ Forest Types in India
| Forest Type | Location | Uses |
|---|---|---|
| Evergreen Forests π΄ | Western Ghats, NE | Timber, rainfall |
| Deciduous Forests π³ | MP, UP, Odisha | Furniture, fuel |
| Thorny Forests π΅ | Rajasthan, Gujarat | Fodder, fuel |
| Mountain Forests π² | Himalayas | Herbs, tourism |
| Mangroves ππΏ | Sundarbans, Andamans | Protect coasts |
π 9. Sustainable Development
We must use natural resources judiciously so that they are available for future generations.
Ways:
- Reduce, Reuse, Recycle β»οΈ
- Afforestation π±
- Water and soil conservation π§
- Wildlife protection π―
π 10. Summary
- Land, soil, water, vegetation, and wildlife are essential resources.
- Human activities are causing overuse and depletion.
- Conservation methods must be applied to ensure sustainable development.
β 11. Important Questions
Short Questions:
- Name two methods of soil conservation.
- What is rainwater harvesting?
- Why is wildlife important for us?
- Mention two problems of water distribution.
Long Questions:
- Explain land use patterns in India.
- Describe soil formation and types of soils in India.
- How can we conserve water resources?
- Write a note on natural vegetation types.
