| 原状土冲刷法与人工模拟降雨法研究土壤抗冲性对比分析 |
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| 引用本文： | 刘国彬,张光辉. 原状土冲刷法与人工模拟降雨法研究土壤抗冲性对比分析[J]. 水土保持通报, 1996, 16(2): 32-37 |
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| 作者姓名： | 刘国彬 张光辉 |
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| 作者单位： | 中国科学院水利部水土保持研究所;中国科学院水利部水土保持研究所 |
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| 摘 要： | 在相同条件下，对比研究了人工模拟降雨小区和用大型抗冲槽测定的土壤侵蚀量、产沙过程及抗冲性异同。
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| 关 键 词： | 原状土冲刷法 抗冲性 侵蚀量估测 |
| 收稿时间： | 1995-04-01 |
Comparison Anal ysis on Soil Anti-scourabil ity Between Undisturbed Sampling and Artificial Rainfall Plot |
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| Liu Guo-bin and Zhang Guang-hui. Comparison Anal ysis on Soil Anti-scourabil ity Between Undisturbed Sampling and Artificial Rainfall Plot[J]. Bulletin of Soil and Water Conservation, 1996, 16(2): 32-37 |
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| Authors: | Liu Guo-bin and Zhang Guang-hui |
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| Affiliation: | Instituteof Soil and Water Conservation. Chinese Academy of Sciences and Ministry of Water Resources.712100.Yangling District. Xianyang Municipality. Shaanxi Pravince;Instituteof Soil and Water Conservation. Chinese Academy of Sciences and Ministry of Water Resources.712100.Yangling District. Xianyang Municipality. Shaanxi Pravince |
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| Abstract: | The soil loss.sediment yield and process as well as soil anti-scourability were tested on field artificial runoff plot and undisturbed soil sampling(lOcmX20cmXlOcm)under the same conditions.The result showed that soil sample washing method was 200-400times of soil lossthan in the runoff plot in 15 minutes with rainfall of 0.65 and 0.84 mm/min.The erosion process in soil sample washing was different from in runoff plot.The runoff depth in former was 50~150 times and erosion modules was 5-7times(bare land)and 1.8-4.5 times(pasture)of in runoff plot.The reason of such difference was analysised.It was also found that there exited relation of sediment yield between samples of large size(lOcmX20cm XlOcm)and small size(3.5cm X 20cm X 4cm), and sediment yield in former can be estimated by small one. |
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