种植牧草保持水土在荒山、荒坡和地埂、梯田埂、水平沟埂和鱼鳞坑围埂,以及在退耕地,因地制宜地种植各种牧草,对保持水土有重要作用。第一,牧草的根和茎叶残留在地里,增加土壤有机质.改善土壤结构,增强吸水能力和抗侵蚀能力。第二,牧草生长迅速。很快即可形成繁茂的草层。覆盖地面。能减少雨水对土壤的直接打击。有利于保持水土。第三,牧草根系发达.多分布在土壤表层,可固结土壤.防止侵蚀。第四,牧草植株低矮, Planting forages to maintain water and soil in the barren hills, barren slopes and mounds, terraced fields, horizontal ditch and fishbowl encircling, as well as in returning farmland, planting a variety of forage according to local conditions, to maintain soil and water plays an important role. First, pasture roots and stems and leaves remain in the ground, increasing soil organic matter, improving soil structure, enhancing water absorption capacity and anti-erosion ability. Second, forage grows rapidly. Quickly form lush grass layers. Cover the ground. Can reduce the direct impact of rain on the soil. Help to maintain soil and water. Third, forage roots developed, distributed in the soil surface, soil consolidation can prevent erosion. Fourth, grass plants low,