Question

How do overirrigation, mining and overgrazing lead to degradation of land
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Answer 1

Answer:

Over-irrigation and mining lead to land degradation as :

(i) Over-irrigation is responsible for land degradation due to waterlogging which leads to increase in salinity and alkalinity in the soil. Water logging is a major issue in Punjab, Haryana, UR

(ii) The mineral processing like grinding of limestone for cement industry calcite and soapstone for ceramic industry generate huge quantities of dust in the atmosphere. It retards the process of infiltration of water into the soil after it settles down on the land.