| 中国水蚀土壤抗剪强度研究 |
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| 引用本文： | 张爱国,李锐,杨勤科.中国水蚀土壤抗剪强度研究[J].水土保持通报,2001,21(3):5-9. |
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| 作者姓名： | 张爱国 李锐 杨勤科 |
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| 作者单位： | 中国科学院水利部水土保持研究所, 陕西杨凌 712100 |
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| 基金项目： | 中国科学院知识创新项目"中国水土流失宏观分析与评价研究”(99-01-05);
水利部水利科技开发基金项目"中国水土流失快速清查技术研究”(SJ-9725)发基金项目"中国水土流失快速清查技术研究”(SJ-9725) |
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| 摘 要： | 利用野外测试数据、土壤样品的室内理化分析数据和参考文献数据 ,对水蚀区范围内水土流失过程中的土壤抗剪强度进行了初步研究 ,建立了中国水土流失土壤抗剪强度的回归模型 ,总结出水蚀区范围内水蚀过程中有关土壤抗剪强度的 3条结论 :影响水土流失过程中土壤抗剪强度的主导因素是容重、粉 /黏、土壤含水量、土壤有机质含量 ;抗剪强度随土壤类型发生有规律的变化 ;抗剪强度在中国水蚀区范围内有较明显的空间分异规律 (包括水平分异规律和垂直剖面构型规律 )
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| 关 键 词： | 测试数据 抗剪强度 回归模型 空间分异 |
| 文章编号： | 1000-288(2001)03-0005-05 |
| 收稿时间： | 4/9/2001 12:00:00 AM |
| 修稿时间： | 2001年4月9日 |
Study on Soil Anti-shearing Intensity of Water Erosion in China |
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| ZHANG Ai guo,LI Rui and YANG Qin ke.Study on Soil Anti-shearing Intensity of Water Erosion in China[J].Bulletin of Soil and Water Conservation,2001,21(3):5-9. |
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| Authors: | ZHANG Ai guo LI Rui and YANG Qin ke |
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| Institution: | Institute of Soil and Water Conservation, Chines Academy of Sciences and Ministry of Water Resources, Yangling 712100, Shaanxi Province, PRC;Institute of Soil and Water Conservation, Chines Academy of Sciences and Ministry of Water Resources, Yangling 712100, Shaanxi Province, PRC;Institute of Soil and Water Conservation, Chines Academy of Sciences and Ministry of Water Resources, Yangling 712100, Shaanxi Province, PRC |
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| Abstract: | Soil anti shearing intensity in water erosion process of the whole country is preliminarily researched in the article by using the firsthand data obtained through field test, indoor analytic data of the physical and chemical properties of soil samples and reference data. The regression model of soil anti shearing intensity is built. The dominate factors impacting on soil anti shearing intensity in regional water erosion process are soil capacity, ratio of silt to clay, the water content and organic matter content. Soil anti shearing intensity regularly changes keeping pace with the soil type, it has obvious space distribution rules in Chinese water erosion region, including horizontal and vertical distribution rules. |
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| Keywords: | test data anti shearing intensity regression model space distribution difference |
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