UPSC · Prelims and Mains
Indian and World Geography
← Biogeography and soils (physical side)Soil erosion and conservation methods
- Erosion types: sheet, rill, gully and ravine erosion; wind erosion
- Causes: deforestation, overgrazing, mining, faulty ploughing, construction
- Slope methods: contour ploughing, contour bunding, terrace cultivation
- Shelter belts, strip cropping, mulching, stubble retention, check dams
- Integrated soil conservation: land capability, land-use maps, local conditions and community participation
- Soil degradation: declining fertility and nutrients, erosion and loss of soil depth
