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Soil deposit Description Image Alluvial soil Alluvial soil have been deposited by the Indus, the Ganges, and the Brahmaputra rivers. The entire northern plains (including parts of Arunachal Pradesh, Assam, Bihar (Almost entirely), Chandigarh, Delhi (almost entirely), Haryana, Himachal Pradesh, Madhya Pradesh, Punjab, Rajasthan, Uttarakhand, Uttar Pradesh, and West Bengal) are made of alluvial ...
Bhangar soils are less fertile as they are above flood level whereas Khadar soils are more fertile as they are below the flood level. Bhanger is full of kankers (lime nodules) while khadar soil is composed of fine silt and clay. It is fertile land as it contains alluvial soil deposited by rivers.
The present consensus is that "alluvium" refers to loose sediments of all types deposited by running water in floodplains or in alluvial fans or related landforms. [1] [7] [8] However, the meaning of the term has varied considerably since it was first defined in the French dictionary of Antoine Furetière, posthumously published in 1690.
A small, incised alluvial plain from Red Rock Canyon State Park (California). An alluvial plain is a plain (an essentially flat landform) created by the deposition of sediment over a long period by one or more rivers coming from highland regions, from which alluvial soil forms.
Much of the fertile agricultural soils of the Nile valley in Egypt are Entisols developed on alluvial materials (soil suborders Fluvent and Aquent) Entisols are soils, as defined under USDA soil taxonomy, that do not show any profile development other than an A-horizon (or “A” horizon). Entisols have no diagnostic horizons, and are ...
[89] [90] Alluvial soil constitute the largest soil group in India, constituting 80% of the total land surface. [90] It is derived from the deposition of silt carried by rivers and are found in the Great Northern plains from Punjab to the Assam valley. [90] Alluvial soil are generally fertile but they lack nitrogen and tend to be phosphoric. [90]
The increase in sediment is caused by a decrease in soil binding that results from plant growth being suppressed. The drier conditions cause river flow to decrease at the same time as sediment is being supplied in greater quantities, resulting in the river becoming choked with sediment.
Kankar or (kunkur) is a sedimentological term derived from Hindi (and ultimately Sanskrit) which is occasionally applied in both India [1] and the United States to detrital or residual rolled, often nodular calcium carbonate formed in soils of semi-arid regions. [2] It is used in the making of lime and of roads. [3]