Soil Resources in India

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Soil is the loose material which forms the thin surface layer of the Earth. It is formed through the breakdown of parent rock material influenced by relief, climate, vegetation, animals, insects, and …

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Pedogenesis is the process of soil formation. It involves the breakdown and weathering of rocks, decomposition of organic matter, and the interaction of various environmental factors over long periods…

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The three main inorganic components are: 1) Silica - present as small crystalline grains, main constituent of sand, derived from rock disintegration; 2) Clay - mixture of silicates and minerals like i…

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Humus is the ultimate form of organic matter in soil, formed by decomposition of plant remains, animal waste, and dead animals. It is important because: 1) It helps soil retain moisture, 2) It imparts…

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Sheet erosion is the uniform removal of a thin layer of surface soil across a wide area, caused by surface runoff during heavy rainfall. It leads to reduced soil fertility as the nutrient-rich topsoil…

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Gully erosion is an advanced form of soil erosion where water runoff creates deep channels or gullies that are too deep to be smoothed by normal tillage. It causes rapid erosion, loss of arable land, …

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Four human-induced causes are: 1) Deforestation - cutting trees reduces vegetation cover, 2) Agricultural practices - slash and burn (jhum) farming reduces soil fertility, 3) Overgrazing - livestock r…

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Afforestation is the process of planting trees and increasing forest cover. It helps prevent soil erosion because tree roots bind the soil together, preventing it from being washed away by water or bl…