Alluvial soil is also known as riverine soil because they are found in river basins and are formed when streams and rivers slow their velocity. The alluvial soil is formed by the deposition of the sediments brought by the rivers staring form the mountains (its origin). This soil gets deposited on the river banks when the river overflows on it.
Occurance of Alluvial soil
Alluvial soil is abundantly found in the coastal belts, deltas of Ganges, Mississippi, Brahmaputra, the Nile, Huang Rivers and even in the valleys of the Tarai region. Every year, a new layer of alluvial soil gets depositing on the banks by the river floods.
Alluvial soil is rich in minerals, nutrients, organic matter and also holds heavy metals, including gold, ores, gemstones, etc. Overall, the alluvial soil is highly fertile soil and provides a good environment for plants growth. Cereal, sugarcane, pulse and paddy are few examples of crops grown in alluvial soil.
For more information related to alluvial soil, its importance and about different types of soil, visit BYJU’S Biology.