Managing Soil Erosion (Copy)
3.7 Managing Soil Erosion – Cheat Sheet
Strategies to Reduce Soil Erosion
| Strategy | Description | Example |
|---|---|---|
| Terracing | Cutting flat steps into slopes to slow water runoff and reduce erosion | Rice terraces in the Philippines |
| Contour Ploughing | Ploughing along natural contours (not up/down slopes) to reduce water flow speed | Common in hillside farming |
| Bunds | Small earth embankments built across slopes to trap water and soil | Used in semi-arid regions of India |
| Wind Breaks | Rows of trees/shrubs planted to reduce wind speed and protect soil | Shelterbelts in USA and Europe |
| Maintaining Vegetation Cover | Cover crops, grasses, or natural vegetation protect soil from erosion by wind and rain | Cover cropping with legumes |
| Addition of Organic Matter | Compost/manure improves soil binding, fertility, and water retention | Farmyard manure in South Asia |
| Planting Trees (Afforestation) | Roots bind soil, canopy reduces rain impact | Forest plantations in Africa |
| Mixed Cropping / Intercropping | Growing multiple crops together → protects soil and reduces pest spread | Maize + beans intercropping in Kenya |
| Crop Rotation | Alternating crops maintains soil fertility and prevents exhaustion | Legumes restoring nitrogen for cereals |
Quick Pointers
- Most methods aim to reduce runoff, protect topsoil, and maintain fertility.
- Success often requires a combination of strategies adapted to local conditions.
- Long-term solution = sustainable farming practices.
Written and Compiled By Sir Hunain Zia, World Record Holder With 154 Total A Grades, 7 Distinctions and 11 World Records For Educate A Change O Level And IGCSE Environmental Management Full Scale Course