【摘要】 根据力学和物质与能量原理 ,对土壤水力侵蚀这一自然地理现象从哲学的高度进行分析 ,认为水动力作用是土壤水力侵蚀的根本原因 ;物质与能量守恒是土壤水力侵蚀的基本法则 ;侵蚀与沉积并存是土壤水力侵蚀的普遍规律。提出基于能量力学机理的 3个土壤水力侵蚀的新理论 ,即侵蚀平衡理论、最大梯度理论和水流侵蚀力理论。指出按这种思想建立的数学模型能揭示土壤水力侵蚀的规律 ,因而具有重要的理论和应用价值更多还原

【Abstract】 According to the mechanics theories and the matter and energy principle affecting, soil water erosion, a physical geographic phenomenon was analyzed at a philosophical level. This research reveals that dynamic action is the root reason for soil water erosion, and that law of conservation of mass and energy is the basic principle of soil erosion, and that the coexistence of erosion and sediment is a universal rule of soilwater erosion. Three new theories of soil water erosion based on energy mechanics, namely, the erosion equilibrium theory, the most gradient theory and stream erosion mechanics theory are put forward. The mathematics model set up on the basis of this idea is practicable in that it helps reveal the rule of soil water erosion.更多还原