Question

What has significantly contributed to land degradation?

Answer 1

Some human activities such as deforestation, over grazing, mining and quarrying too have contributed significantly in land egradation. Mining sites are abandoned after excavation work is complete leaving deep scars and traces of over-burdening. In states like Jharkhand, Chhattisgarh, Madhya Pradesh and Orissa deforestation due to mining have caused severe land degradation. In states like Gujarat, Rajasthan, Madhya Pradesh and Maharashtra overgrazing is one of the main reasons for land degradation. In the states of Punjab, Haryana,western Uttar Pradesh, over irrigation is responsible for land degradation due to water logging leading to increase in salinity and alkalinity in the soil. The mineral processing like grinding of limestone for cement industry and calcite and soapstone for ceramic industry generate huge quantity of dust in the atmosphere. It retards the process of infiltration of water into the soil after it settles down on the land. In recent years, industrial effluents as waste have become a major source of land and water pollution in many parts of the country.

Answer 2

Over-exploitation of land resources has led to land degradation ,landslides, soil erosion, desertification, deforestation are major threats to environment

Land degradation refers to decline of cultivated land and forest land

Factors responsible for degradation of land include excessive use of land ,deforestation, clearing fertile for land settlements , slashing and burning trees for agriculture, abandoned mining sites, untreated industrial effluents and concretosation


Mark as brainliest answer plzzz