Which of the following processes is related to the biological method of controlling soil erosion?

Contour terracing
Mulching
Hay farming
Desilication

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 2 : Mulching

The correct answer is Mulching.

Confusion Points

Contour terracing is a most effective mechanical method to control soil erosion.

Mulching is the biological process of controlling soil erosion.

Mulching is a method of using cut leaves, straw, leaf litter etc. to cover the bare soil while still farming and growing crops on it.
The main objective of mulching is to keep the soil covered while farming it.
It is effective against the wind as well as water erosion.
Some plants such as maize, cotton etc are used as ‘mulch’.
Mulch is the protective layer formed by stubble.
Mulches reduce soil moisture evaporation and increase the amount of soil moisture by adding organic matter into the soil.

Process	Description
Contour terracing	● It is a mechanical method to control soil erosion. ● It is done by constructing a channel along the slope to intercept or divert the runoff water.
Hay farming	● This method is growing grasses in rotation with the field crops. ● It helps in building the structure of the soil and preventing soil erosion.
Desilication	● It is the process of removal of silica from the soil. ● It happens in wet, equatorial and rainy areas with high rainfall.

4 views Answered 2022-09-04 04:29

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