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一个流域的产沙量,取决于毛侵蚀量和自侵蚀源至泥沙测验点途中影响泥沙输送的各种过程.毛侵蚀量一般分为三种类型:片侵和细沟侵蚀;沟蚀;以及河道侵蚀.研究者把降雨、土壤、坡长、坡度和植被类型视为基本侵蚀过程中的本质因素.“在制订控制侵蚀、减少沙量的计划和措施时,需要知道泥沙来自何处.对于制订这些计划的工程师和技术人员来说,了解泥沙来源与了解泥沙产量几乎同样重要.他们必须确定一个流域中几种侵蚀类型在构成泥沙来源中所起的作用,并据此种选择必要的水土保持措施.”
The sediment yield of a river basin depends on the amount of gross erosion and the various processes that affect the sediment transport on the way from the source of erosion to the point of sediment testing. The amount of gross erosion is generally divided into three types: sheet invasion and rill erosion ; And river erosion. The researchers consider rainfall, soil, slope length, slope, and vegetation types as essential elements of a basic erosion process. “When developing plans and measures to control erosion and reduce sediment, it is important to know where the sediment comes from It is almost as important to know the source of sediment as to understand the sediment yield for the engineers and technicians who formulate these plans, and to determine the role that several types of erosion in a watershed can play This choice of soil and water conservation measures necessary. ”