AP Environmental Science / Unit 5: Land and Water Use
5.15 Sustainable Agriculture
Notes
Practices that protect soil and water:
- Contour plowing, terracing, windbreaks, no-till, crop rotation, cover crops.
- Green manure and limestone improve soil.
- Rotational grazing prevents overgrazing.
Practice
Planting rows of trees to block wind is:
Reduces wind erosion.
Crop rotation helps soil by:
Different crops use different nutrients.
Terracing is used on:
Step-like fields slow runoff.
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