1.草埂梯田在5—25度的坡地上,每隔5—10米种植一条宽1.5—4米的等高苜蓿带,不但能增产以及防冲拦泥的效果也很显著外,而且经过暴雨冲刷和逐年耕作向下翻土,使坡地逐步变成水平梯田。据在环县调查,原地面14度种植苜蓿草带后6年变为6度,每年拦泥深达 1. Grass 埂 terraces 5-25 degrees in the slope, every 5-10 meters planted a 1.5-4 meters wide contour alfalfa belts, not only to increase production and the effect of anti-stubborn mud is also significant, and after Rainstorm erosion and year-round tillage downwards, so that the slope gradually become a horizontal terraced fields. According to the investigation in Huan County, the alfalfa grass belt planted at 14 degrees on the original ground changed to 6 degrees 6 years later,