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工程科学与技术:2012,44(5):64-70
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基于通径分析和灰色关联理论的坡面产流产沙影响因子分析
黄俊1,2,3, 赵西宁1,2,3,4, 吴普特1,2,3,4
(1.西北农林科技大学 水利与建筑工程学院;2.西北农林科技大学 中国旱区节水农业研究院;3.国家节水灌溉杨凌工程技术研究中心;4.中国科学院 水利部 水土保持研究所)
Factors Analysis of Slope Runoff and Sediment Based on Path Analysis and Grey Relational Analysis
Huang Jun1,2,3, Zhao Xining1,2,3,4, Wu Pute1,2,3,4
(1.College of Water Resources and Architecture Eng.,Northwest A & F Univ.;2.Inst. of Water Saving Agriculture in Arid regions of China,Northwest A & F Univ.;3.National Eng. Research Center for Water Saving Irrigation at Yangling;4.Inst. of Soil and Water Conservat)
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投稿时间:2012-03-04    修订日期:2012-06-03
中文摘要: 基于坡面不同植被措施下多场室外人工模拟降雨试验,采用通径分析和灰色关联理论研究了植被、降雨及下垫面等因素对坡面次降雨径流总量和泥沙总量的不同影响作用。结果表明:1)通径分析与灰色关联分析结果基本一致;2)降雨强度、植被覆盖度和土壤前期含水量是影响坡面次降雨径流总量的3个最重要因子,其次分别为植被类型、降雨历时、植被生长阶段和坡度;3)植被覆盖度和降雨强度是影响次降雨泥沙总量最重要的两个因子,降雨历时对泥沙总量的影响作用最小。
Abstract:Based on vegetated-slopes and outdoor simulated rainfall events,the different influence of vegetation,rainfall,underlying surface condition on the total runoff amount and total sediment yield for one rainfall event was investigated by path analysis and grey relational analysis.Results indicated that the results of path analysis are in agreement with that of grey relational analysis.The rainfall intensity,vegetation coverage and antecedent soil moisture are the three most important factors that influence the total runoff amount,and followed by vegetation types,rainfall duration,vegetation growth stages and slope gradient.The vegetation coverage and rainfall intensity are the two important factors that influence the total sediment yield,and rainfall duration is the least significant factor.
文章编号:201200150     中图分类号:    文献标志码:
基金项目:国家自然科学基金资助项目(31172039);国家科技支撑计划资助项目(2011BAD29B09);教育部、国家外国专家局“111”计划资助项目(B12007);陕西省青年科技新星支持项目(2010KJXX-04);西北农林科技大学青年学术骨干项目和基本科研业务费支助项目
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黄俊,赵西宁,吴普特.基于通径分析和灰色关联理论的坡面产流产沙影响因子分析[J].工程科学与技术,2012,44(5):64-70.
Huang Jun,Zhao Xining,Wu Pute.Factors Analysis of Slope Runoff and Sediment Based on Path Analysis and Grey Relational Analysis[J].Advanced Engineering Sciences,2012,44(5):64-70.