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通过１０多年在黄土高原水土流失区布点试验，以及在陕、晋、宁、蒙、青等省（区）在面积推广试验结果表明：山地水平沟具有拦截径流、提高地力、以地养地、蓄水保墒、挡风抗寒之功能．在年均坡面径流１２ｍｍ的情况下，每公顷可减少水土流失１３００ｍ￣３和６５０ｔ，由于山地水平沟水肥供应充分，产量较一般坡耕地提高３５—３００％，在黄土高原水土流失区具有特殊的作用和地位，值得大力提倡和推广．
After more than 10 years of experiment on the distribution of soil and water loss in the Loess Plateau, as well as in the promotion of the area in Shaanxi, Jin, Ning, Meng and Qing provinces (districts), the results show that the horizontal groove of mountainous area has the functions of intercepting runoff, improving soil fertility, Water conservation, wind and cold functions. In the case of an average annual runoff of 12 mm, soil erosion per hectare can be reduced by 1300-300 and 650t. Since the supply of water and fertilizer in the horizontal horizontal furrows is increased by 35-300% compared with that of the general sloping fields, the soil erosion in the Loess Plateau is special The role and status, it is worth vigorously promote and promote.