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Geography Optional 300+ Score Pack · Model answer

Discuss the role of watershed management for soil and water conservation in hilly regions of India.

  • UPSC 2021
  • Regional Development and Planning

Detachment rises sharply with slope gradient and slope length: runoff that is a nuisance at two per cent grade reaches erosive velocity within metres at twenty-five, and thin soils over young rock leave no reserve.

You are reading the opening of the model answer. The full answer is part of the Geography Optional 300+ Score Pack.

What the full answer covers

  • Why a hill watershed is a different engineering problem
  • Ridge-to-valley is a sequencing rule, not a slogan
  • The works, ridge to stream
  • What the treated catchment yields

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