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Why is soil erosion relatively less in dense forests as compared to barren, open fields? - Science

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प्रश्न

Why is soil erosion relatively less in dense forests as compared to barren, open fields?

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उत्तर

In dense forests, the tree cover (canopy) prevents rainwater from directly falling on the forest floor/soil. The canopy layer of for¬est intercepts the flow of raindrops so that rainwater falls on the leaves of trees and then drips slowly onto the forest floor. Thus, forests allow rainwater to seep. Also, roots of the veg¬etation bind the soil particles and hold them firmly. This protects the topsoil and prevents it from getting eroded by wind or water. But in barren, open fields the soil is exposed to the wind and falling rain. The soil particles become loose and easily get carried away by blowing wind or flow of water. Hence, soil erosion is relatively less in dense forests as compared to open barren fields.

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पाठ 9: Soil - LONG ANSWER QUESTIONS [पृष्ठ ५०]

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एनसीईआरटी एक्झांप्लर Science [English] Class 7
पाठ 9 Soil
LONG ANSWER QUESTIONS | Q 17. | पृष्ठ ५०
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