Advertisements
Advertisements
Question
How do ‘wrong methods of farming’ lead to greater soil erosion?
Very Long Answer
Advertisements
Solution
- 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.
shaalaa.com
Is there an error in this question or solution?
Chapter 5: Soils in India - Exercises [Page 136]
