GS1 › Indian Physical and Economic Geography
Revision note: Soils of India: Types, Degradation and Conservation
- Factors: parent rock, climate (most important), relief, organisms, time; horizons A, B, C
- Alluvial ~40%: rich potash, poor N and P; Bhangar vs Khadar
- Black (regur, Vertisol): basalt, self-ploughing, cotton
- Red (iron oxide, granite); laterite (leaching, bricks, tea/coffee/cashew)
- Saline: reh, kallar, usar – gypsum
- Peaty: Kuttanad, Sundarbans
- Degradation ~29.7% (ISRO atlas 2021); target 26 Mha restored by 2030
Source: https://upscprep.in/upsc/gs1/indian-physical-and-economic-geography/soils-of-india-types-degradation-and-conservation/ · UPSCPrep.in
