INDIAN GEOGRAPHY

Detailed explanation-1: -Alluvial soil is formed from the sediments deposited by the rivers in Indo-Gangetic plains and by sea waves in the coastal plains. It is very fertile and hence, excellent for agriculture. This soil is found extensively in the northern plains and other river valleys in India.

Detailed explanation-2: -Alluvial soil is mainly found in Northern Plains. These soils are widespread in the Northern Plains and valleys. They are depositional soils, formed mainly due to silt deposited by Indo-Gangetic-Brahmaputra Rivers. When the river overflows, this soil is deposited on the riverbanks.

Detailed explanation-3: -Alluvial soil is found in the regions of Indo-Gangetic plains, Punjab, Haryana, Uttar Pradesh, Bihar, West Bengal, Assam as well as in the northern parts of Gujarat. Alluvial soil is formed by depositions from surface water and thus is also known as depositional soils.

Detailed explanation-4: -Alluvial soils are widespread in the northern plains and river valleys. It covers about 40% of the total land area of the country. These soils are mainly derived from the debris brought down from the Himalayas. In the Peninsular region, they are found in deltas of the east coast and in the river valleys.

Detailed explanation-5: -Coastal alluvium soils are of marine origin and are seen along the coastal plains and basin lands as a narrow strip. Alluvium soils are formed from fluvial sediments of lacustrine or riverine sediments. Forest soils are seen under forest cover and are formed from crystalline rocks of Archaean age.