Question

How to prepare a booklet on the topic alluvial soil plzzz answer faast i wiĺl mark it as brainliest ineed a quick smart answer plzz its urgent

Answer 1

hii mate,

u first write some important points on alluvial soil.

then it contain which type of minerals..

and for what it is helpful ...

hope it helps u..

Answer 2

Alluvial Soil

Alluvial soil is found in the valleys of the Terai region and in the middle hill valleys around Kathmandu and Pokhara. The valleys lie between the Siwalik and Mahabharat hills which widen out in places to form flat fertile valleys called Dun valleys. New alluvial soil with more sand and silt than clay is being deposited in the flood plain areas along the river courses. Alluvial soil is also found in the higher areas above the flood plain covering a greater part of the Terai. The nutrient content of new alluvial soil is fair to medium depending on how long it has been cultivated. Conversely, the nutrient content of old alluvial soils is very low.

Alluvial soil has the highest productivity with respect to other soils. It is present mostly along rivers and is carried by its streams during weathering of rocks. The soil is generally covered by tall grasses and forests, as well as a number of crops, such as rice, wheat, sugarcane, tobacco, maize, cotton, soybean, jute, oilseeds, fruits, vegetables, etc. This soil has very soft strata with the lowest proportion of nitrogen and humus but with an adequate amount of phosphate. There is a wide variation in the amount of iron oxide and lime in different regions. Alluvial soil is one of the best soils, requiring the least water due to its high porosity. The consistency of alluvial soil ranges from drift sand and rich, loamy soil to silt clays. India is one of the richest countries in the world in terms of alluvial soil, which covers more than 46% of its total land area. Most alluvial soils are derived from the sediment being deposited by the river Ganga in the Indo–Gangetic plain, ranging from Punjab in the west to West Bengal and Assam in the east, as well as in the coastal areas of northern parts of Gujarat, Narmada, and Tapi valleys, which are formed by sea waves. The alluvial soil found in India, particularly in the Indo–Gangetic plain, is of two types: khaddar (pale brown, sandy clays to loamy, less calcareous and carbonaceous soil, and found in the low areas of valley that are regularly flooded) and older bhangar soils (dark colored, mostly clayey, and containing lime nodules)