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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
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
作者姓名:刘国彬  张光辉
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
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。

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
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
Authors:Liu Guo-bin and Zhang Guang-hui
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
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.
Keywords:
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