how does deforestation lead to reduction of soil fertility ?

thankyou

Deforestation means cutting of trees. In the absence of trees, the rain water will hit the ground directly and this may cause floods in the surrounding areas. The roots of the trees help to bind the soil together. Therefore, the absence of trees may also lead to erosion of the loose soil. So due to soil erosion, soil fertility will decrease. Because topsoil is fertile.

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