Downloaded 282 times
Uploaded byusman b
Land, soil, water, natural vegetation class 8 geography-PPT
Land, soil, water, natural vegetation, and wildlife are important natural resources that require conservation. Land is used for housing, industry, agriculture, and forestry. Methods to conserve land include afforestation, land reclamation, and regulated use of fertilizers. Soil is made up of organic matter and weathered rocks. Factors like deforestation and overgrazing degrade soil, while conservation methods include mulching, terracing, and contour barriers. Water resources face shortage due to population growth, increasing demands, and urbanization. Conservation efforts involve afforestation, water harvesting, and drip irrigation. Natural vegetation and wildlife exist in ecosystems and provide timber, oxygen, habitat, and food. Their degradation is due
More Related Content
Similar to Land, soil, water, natural vegetation class 8 geography-PPT
Land, soil, water, natural vegetation class 8 geography-PPT
- 1. Land, Soil, Water,Natural Vegetation and Wildlife Resources
- 2. LAND Land is amongthe most important natural resources. It covers only about 30% of the total area of the earth’s surface Land use is the function of land – what it is used for. Land is used for forestry, mining, building houses, roads and setting up of industries
- 4. • Afforestation, land •reclamation, regulated use of chemical pesticide and • fertilisers and checks on overgrazing are some of the • common methods used to conserve land.
- 7. SOIL • The thinlayer of grainy substance covering the surface of the earth is called soil. • Soil is made up of organic matter, minerals and weathered rocks found on the earth.
- 11. Factors for soil degradation •Deforestation, • Over grazing, • Over use of chemical feritilisers or pesticides, • Rain wash, • Landslides • Floods.
- 12. Methods of soilconservation • Mulching • Contour barriers: • Rock dam • Terrace farming: • Intercropping • Contour ploughing: • Shelter belts
- 13.
- 17. Major factors for watershortage • Population growth • Rising demands for food and cash crops • Increasing urbanisation • Rising standards of living
- 18. CONSERVATION OF WATER RESOURCES •Afforestation • Water harvesting • drip or trickle irrigation
- 19. NATURAL VEGETATION ANDWILDLIFE • Natural vegetation and wildlife exist only in the narrow zone of contact between the lithosphere, hydrosphere and atmosphere that we call biosphere • An ecosystem includes all of the living things in a given area, interacting with each other, and also with their non-living environments.
- 20. • Plants provideus with timber, give shelter to animals, produce oxygen we breathe, protects soils so essential for growing crops and act as shelter belts. • Wildlife includes animals, birds, insects as well as the aquatic life forms. They provide us milk, meat, hides and wool.
- 23. • Evergreen forestsdo not shed their leaves simultaneously in any season of the year • Deciduous forests shed their leaves in a particular season to conserve loss of moisture through transpiration.
- 25. Human made andnatural factors for degradation of vegetation and wild life • Deforestation, soil erosion, constructional activities, poaching,forest fires, tsunami and landslides • The animals are poached for collection and illegal trade of hides, skins, nails, teeth, horns as well as feathers.
- 26. Conservation measures • Nationalparks, wildlife sanctuaries, biosphere reserves are made to protect our natural vegetation and wildlife. • Awareness programmes like social forestry and Vanamohatasava