Tag: soil and its conservations

When trees are cut on a large scale land becomes barren. This results in the loss of upper soil layer due to heavy wind or flowing water leading to soil erosion. Roots of plants hold the soil particles and prevent their loss. Hence afforestation i.e. growing plants to form a soil cover prevents soil erosion. Thus the correct answer is option B.

Soil erosion is removal of top soil by agency of water (water erosion) and wind (wind erosion). Soil erosion is of two types- natural and anthropogenic. 

Terracing is a process of making sloped plane into series of succesively receding flat surfaces or platforms resembling stairs, this is how erosion is minimised.

Soil erosion is the phenomenon in which the top most layer of soil gets lost, since plants have the capability of holding the soil particles together and prevent them from being eroded away

Soil pollution greatly due to use of  large amount of herbicides, pesticides. There also some more reason of soil pollution like industrial wastes are dumped into fertile soil which get polluted and also not having proper satiation. But soil erosion is not responsible for soil pollution, soil erosion is mainly due to deforestation. So B option is right. 

Soil conservation is the prevention of soil from erosion or reduced fertility, caused by overuse, acidification, salinization or other chemical soil contamination. Techniques for improved soil conservation include crop rotation, cover crops, conservation tillage and planted windbreaks, that affect both erosion and fertility. 

Afforestation is the act of planting trees in a barren land or converting a farmland to a forest in order to use the trees for commercial purposes. Many programs are organised by the government as well as non-government associations to plant trees and thus improving biodiversity.

There is no alluvial basin in the world, which can compare with the Ganga Basin in terms of size, fertility, acreage and topography. It is the most densely populated river basin in the world and is often characterized as a granary or the bread basket of India. 

Afforestation is the process of establishing a forest on land, that has not been a forest for a long time by planting trees or their seeds. Soil erosion is when the soil is blown away by the wind or washed away by the rain. Roots of trees or plants hold the soil. Thus, when more trees are planted their roots do not allow the soil to be blown or washed away and prevent soil erosion.