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NATURAL RESOURCES- LAND & SOIL
Class 8
NCERT
Chapter- 2
LAND RESOURCES
• Factors influencing land use patterns-
1. Physical factors- relief features, soil, climatic
conditions
2. Human factors- density of population, land
tenure, technical level of people
3. Location and accessibility of the region
LAND UTILIZATION IN INDIA
• Total geographical area of India is 330 million
hectares
• Net sown area- 46%
• Area sown more than once- 31% of net sown area
• Forested area- 22.5%
• Permanent pastures- 4%
• Tree crops and fallow land- 7%
• Cultivable wasteland- 6.5%
• Not available for cultivation- 14%
LAND CULTIVATION
• It depends on –
1. Fertility of soil
2. Relief of land
3. Availability of water
4. Need of the people
PREPARING LAND USE PLAN
Proper land use plan can be prepared by-
Checking the further spread of deserts
Adopting scientific techniques
Conserving soils and forests
Providing irrigation facilities
Increasing the use of manures and chemical
fertilizers
SOIL RESOURCES
• Soil is the thin surface layer of the earth formed
by breaking of rocks, decayed organic matter,
living organisms, water and air
• Organic elements- humus,
• Inorganic elements- nitrogen, potassium, sulphur,
phosphorus, calcium, iron etc.
LAYERS OF THE SOIL
MAJOR SOILS OF INDIA
1. Alluvial soils
2. Black-Lava soils
3. Red soils
4. Laterite soils
5. Mountain soils
6. Desert soils
SOIL CONSERVATION
• Afforestation
• Check overgrazing
• Construction of dams
• Changing agricultural practices-
Crop rotation
Strip cropping
Terracing & contour bunding
Contour ploughing
Use of early maturing varieties

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Natural resources land & soil

  • 1. NATURAL RESOURCES- LAND & SOIL Class 8 NCERT Chapter- 2
  • 2. LAND RESOURCES • Factors influencing land use patterns- 1. Physical factors- relief features, soil, climatic conditions 2. Human factors- density of population, land tenure, technical level of people 3. Location and accessibility of the region
  • 3. LAND UTILIZATION IN INDIA • Total geographical area of India is 330 million hectares • Net sown area- 46% • Area sown more than once- 31% of net sown area • Forested area- 22.5% • Permanent pastures- 4% • Tree crops and fallow land- 7% • Cultivable wasteland- 6.5% • Not available for cultivation- 14%
  • 4. LAND CULTIVATION • It depends on – 1. Fertility of soil 2. Relief of land 3. Availability of water 4. Need of the people
  • 5. PREPARING LAND USE PLAN Proper land use plan can be prepared by- Checking the further spread of deserts Adopting scientific techniques Conserving soils and forests Providing irrigation facilities Increasing the use of manures and chemical fertilizers
  • 6. SOIL RESOURCES • Soil is the thin surface layer of the earth formed by breaking of rocks, decayed organic matter, living organisms, water and air • Organic elements- humus, • Inorganic elements- nitrogen, potassium, sulphur, phosphorus, calcium, iron etc.
  • 8. MAJOR SOILS OF INDIA 1. Alluvial soils 2. Black-Lava soils 3. Red soils 4. Laterite soils 5. Mountain soils 6. Desert soils
  • 9. SOIL CONSERVATION • Afforestation • Check overgrazing • Construction of dams • Changing agricultural practices- Crop rotation Strip cropping Terracing & contour bunding Contour ploughing Use of early maturing varieties