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该文提出了水土流失系统物质和能量容量的概念,分析了它与水土流失的关系,结果表明水土流失系统物质与能量的过剩是引起水土流失的主要原因。同时还讨论了降雨的潜在势能、径流势能以及坡面系统物质所具有的势能的计算公式,提出了水土流失系统物质和能量交换的可能途径。
The paper puts forward the concept of material and energy capacity of soil and water loss system and analyzes its relationship with soil erosion. The results show that the excess of material and energy of soil and water loss system is the main cause of soil erosion. The potential energy of rainfall, runoff potential energy and the formula of potential energy of slope system matter are also discussed. The possible ways of material and energy exchange of soil erosion system are proposed.