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प्रश्न
How do ‘wrong methods of farming’ lead to greater soil erosion?
सविस्तर उत्तर
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उत्तर
- Ploughing breaks soil aggregates into loose particles that are easily carried away by wind or rain if left exposed.
- Ploughing along slopes (instead of along contours) creates furrows that channel and speed runoff, forming rills and gullies and increasing soil loss.
- Leaving land bare after tilling (no cover crop or residue) exposes soil to splash, runoff and wind erosion.
- Lack of mulching or removal/use of crop residues as fuel removes surface protection and reduces soil particle binding and moisture retention.
- Shifting or slash‑and‑burn cultivation (jhumming) clears vegetation and burns organic matter, lowering fertility and leaving soil exposed to erosion by rain and wind.
- Overgrazing removes protective grass cover and loosens soil with hooves, making the surface vulnerable to being washed or blown away.
- Removing trees/shelter belts for farming eliminates roots and canopies that hold soil and reduce wind/rain impact, speeding erosion and runoff.
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पाठ 5: Soils in India - Exercises [पृष्ठ १३६]
