What has significantly contributed to land degradation?
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.
Give the difference between renewable resources and non-renewable resources with examples.
What was the root cause for resources depletion at the global level, according to Gandhiji ?
Explain land use pattern in India and why has the land under forest not increased much since 1960-61?
What type of soil is found in the river deltas of the eastern coast? Give three main features of this type of soil.
What is the classification of alluvial soil on the basis of their age ? Mention their characteristics.