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该文以坡面径流泥沙观测场为基本观测手段,对晋西黄土残塬沟壑区不同地类的坡面进行了为期3年的现场观测.结果表明:在黄土地区降雨量与径流量的关系不明显,径流的发生决定于雨强和土壤性质;现有的人工林和天然灌木林具有良好的拦蓄径流、固持土壤的防护功能.
Based on the observation data of runoff and sediment from the slope surface, a three-year on-site observation was conducted on the slope of different land types in the gully area of Loess Plateau in western Shanxi Province. The results show that the relationship between rainfall and runoff is not obvious in loess area. The occurrence of runoff is determined by rainfall intensity and soil properties. The existing plantation and natural shrubbery have good runoff prevention and retention of soil protective function.