论文部分内容阅读
通过在坡面不同位置布设REE示踪元素来研究坡面的侵蚀分布规律，结果表明：坡面的侵蚀分布符合Weibull概率分布模型。其中形状参数m与降雨量、降雨历时和径流深相关，而已度参数a与平均雨强、I30相关。坡面的平均侵蚀强度基本上位于从坡脚向上的28～55m内；与我们假设的平均侵蚀强度位于坡面的下2／3处基本一致。但由于侵蚀过程的复杂性与影响因子的多样性．有些问题尚未解决，还有待于进一步研究。
The distribution of erosion on the slope was studied by laying REE trace elements on different positions of the slope. The results show that the distribution of erosion on the slope accords with the Weibull probability distribution model. The shape parameter m is related to rainfall, rainfall duration and runoff depth, and the degree parameter a is related to the average rainfall intensity I30. The average erosion intensity of the slope is basically within 28-55m from the foot of the slope, which is basically consistent with the assumption that the average erosion intensity is located at the bottom 2/3 of the slope. However, due to the complexity of the erosion process and the diversity of impact factors. Some problems have not yet been solved, yet to be further studied.