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Contour Buffer Strips
How it works
A series of grass strips are placed across the slope on a contour. The alternating strips of grass or other permanent vegetation slow runoff flow, trap sediment from the crop strips above, and increase water infiltration. Because the buffer strip is established on the contour, runoff flows evenly across the entire surface of the grass strip, reducing sheet and rill erosion. This practice is not suited for very steep, irregular slopes where contouring is impractical. The effectiveness of contour buffer strips is dependant on several factors such as steepness, soil type, crops grown, and strip widths.
How it helps
- Vegetation and cover provides habitat for small birds and animals.
- The strips reduce erosion by slowing water flow and increasing infiltration.
- Improves water quality by reducing siltation and filtering chemicals and nutrients from runoff.
Link to NRCS Standards & Specifications
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