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坡面径流对地表的侵蚀,本质上是由于流水重力势能累积作用的结果。从坡面流水的能量累积角度,提出了一种反映原始坡面侵蚀动力的流水侵蚀潜能因子的基本概念及其计算原理;设计了基于高精度数字高程模型(DEM)的流水侵蚀潜能因子的计算方法,完成了多期模拟小流域的流水侵蚀潜能因子的计算,并基于该因子获取了相应的侵蚀动力点结果;分析了侵蚀动力点的空间分布特征,并以此为依据,初步讨论了地形的演化规律。结果表明,运用坡面流水侵蚀潜能因子进行坡面侵蚀强度及其演化规律的研究,具有重要的理论意义和实际的应用价值。
Slope runoff on the surface erosion, in essence, is due to the cumulative effect of water gravity potential energy results. Based on the energy accumulation of slope water, a basic concept and calculation principle of water erosion potential that reflects the original slope erosion power is proposed. The calculation of water erosion potential factor based on high-precision digital elevation model (DEM) Method was used to calculate the potential erosion factor of runoff in multi-period simulated small watershed. Based on this factor, the corresponding erosion dynamic point results were obtained. Based on the analysis of the spatial distribution characteristics of the erosion dynamic points, The evolution of law. The results show that using slope erosion potential energy factor to study slope erosion intensity and its evolution has important theoretical significance and practical value.