| 坡面土壤侵蚀分布规律的初步分析 |
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| 引用本文： | 石辉1,段宏斌2,刘普灵1. 坡面土壤侵蚀分布规律的初步分析[J]. 水土保持研究, 1997, 4(2): 64-68,74 |
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| 作者姓名： | 石辉1 段宏斌2 刘普灵1 |
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| 作者单位： | 1. 中国科学院水利部水土保持研究所 陕西杨陵 712100;2. 陕西省林业学校 陕西杨陵 712100 |
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| 摘 要： | 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。
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| 关 键 词： | 坡面侵蚀 分布规律 Weibull分布 |
Primary Analysis of Erosion Distribution Laws on Slope |
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| Shi Hui1,Duan Hongbin2,Liu Puling1. Primary Analysis of Erosion Distribution Laws on Slope[J]. Research of Soil and Water Conservation, 1997, 4(2): 64-68,74 |
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| Authors: | Shi Hui1 Duan Hongbin2 Liu Puling1 |
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| Affiliation: | 1. Institute of Soil and Water Conservation, Chinese Academy of Sctences and Mimstry of Water Resources Yangling Shaanxi 712100;2. Shaanxi Province Forestry School Yangling Shaanxi 712100 |
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| Abstract: | Ahstract Through arranging rareearth elements(REE) at different position of slope to study erosive distribution laws of slope, the results showed that erosive distribution of slope accorded with weibull possibility possibility distribution model. Its shape parameter m was correlated with precipitation, rain times and runoff depth, while scale parameter a was correlated with average rainfall intensity and I30. Basically average erosion intensity of slope lied in 28~55m toward slopeefoot. This is consist with our assumption that average erosion intensity lied in the place whichis 2/3 from slope top. Butdue to complexity of erosive process and diversity of its affecting factors, some problems were unsolved and expected tobe further researched. |
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| Keywords: | slope erosion distribution laws Weibull distribution |
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