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Land, Soil, Water, Natural Vegetation and Wildlife Resources
Explain any five different methods of soil conservation.
Some common methods of soil conservation are explained below:
(i)Mulching: The bare ground between plants is covered with a layer of organic matter like straw. It helps to retain soil moisture.
(ii)Contour barriers: Stones, grass, soil are used to build barriers along contours. Trenches are made in front of the barriers to collect water.
(iii)Rock dam: Rocks are piled up to slow down the flow of water. This prevents gullies and further soil loss.
(iv)Terrace farming: These are made on the steep slopes so that flat surfaces are available to grow crops. They can reduce surface run-off and soil erosion.
(v)Intercropping: Different crops are grown in alternate rows and are sown at different times to protect the soil from rain wash.
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Which one of the following is NOT in favour of the conservation of nature?
Match the following options:
Ganga-Brahmaputra plain of India is an overpopulated region.
Water availability per person in India is declining.
Rows of trees planted in the coastal areas to check the wind movement is called intercropping.
Human interference and changes of climate can maintain the ecosystem.
Which of these resources covers about three-fourths of the total surface of earth?
Low-lying areas are susceptible to_______.
Which of these physical features are best suited for living?
Which of these is example of community land?
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