भारत में मानवजन्य भूमि-उपयोग परिवर्तनों के प्रमुख कारकों और उनके भौगोलिक परिणामों का विश्लेषण कीजिए।

Physical-geographical consequences

✏️ Diagram to draw in your answer

• Hydrology: paved catchments and filled lakes speed runoff and cut recharge, so cities flood and aquifers fall at once.
  • Chennai 2015: floods where the Pallikaranai marsh and the Adyar floodplain had been built over.
• Land degradation: erosion on cleared slopes, salinisation in over-irrigated canal commands, desertification on overgrazed drylands.
• Slope hazards: over-built hill towns on old landslide debris face subsidence and slides.
  • Joshimath 2023: cracks across houses in a town built on unstable moraine with heavy construction load.
• Coastal exposure: mangroves cleared for shrimp farms and ports leave coasts open to erosion and surge.
• Ecology and climate: fragmented habitats raise human–wildlife conflict; concrete creates urban heat islands and loses carbon sinks.

Human-geographical consequences

• Displacement: reservoirs and mines uproot tribal and farming communities, often without land-for-land resettlement.
  • Narmada valley: a decades-long struggle over who bears the cost of Sardar Sarovar's submergence.
• Livelihood erosion: pastoralists lose commons; falling water tables raise pumping costs and push small farmers into debt.
• Unequal risk: informal settlements occupy the floodplains and slopes the formal city rejected, so disasters hit the poor first.
• Food-land squeeze: fertile peri-urban soils are lost permanently, pushing cultivation onto marginal land that degrades faster.

Way forward

• Restore at scale: India has 21.76 million hectares under restoration against its 26-million-hectare Bonn Challenge target for 2030.
• Plan land as a system: a national land-use policy, Wetlands Rules 2017 enforced, floodplain zoning, and carrying-capacity limits for hill towns.
• Revive the commons: Ostrom showed communities manage shared land when rules are local and enforced.
  • Hiware Bazar (Maharashtra): watershed treatment, grazing and borewell rules turned a drought-hit village water-secure.
• Map before building: satellite land-use monitoring to flag encroachment on lakes, forests and slopes in near-real time.

In M.C. Mehta v. Kamal Nath (1997) the Supreme Court held that the State holds rivers, forests and fragile land in trust for the public; land-use planning that honours that trust, measured against the 2030 goal of land degradation neutrality, lets India grow without consuming its own ground.