[1]张晓明,王玉杰,夏一平,等.重庆缙云山典型植被原状土抗剪强度的灰色关联度分析与评价[J].水土保持研究,2007,14(02):145-147,151.
　ZHANG Xiao-ming,WANG Yu-jie,XIA Yi-ping,et al.Grey Relational Analysis and Evaluation on Anti-shear Strength of the Undisturbed Soil of Typical Vegetations in Jinyun Mountain in Chongqing City[J].Research of Soil and Water Conservation,2007,14(02):145-147,151.
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重庆缙云山典型植被原状土抗剪强度的灰色关联度分析与评价

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 14 期数: 2007年02期 页码: 145-147,151 栏目: 出版日期: 1900-01-01
Title:
Grey Relational Analysis and Evaluation on Anti-shear Strength of the Undisturbed Soil of Typical Vegetations in Jinyun Mountain in Chongqing City
作者:
张晓明1, 王玉杰1, 夏一平2, 吴云2
1. 北京林业大学水土保持学院, 北京, 100083;
2. 重庆缙云山国家级自然保护区管理局, 重庆, 北碚, 400700
Author(s):
ZHANG Xiao-ming1, WANG Yu-jie1, XIA Yi-ping2, WU Yun2
1. College of Soil and Water Conservation, Beijing Forest University, Beijing 100083, China;
2. Management Bureau of Jinyunshan National Nature Protection Region in Chongqing City, Chongqing 400700, China
关键词:
抗剪强度; 黏聚力; 灰色关联度; 内摩擦角
Keywords:
anti-shear strength; cohesion; grey relation; friction angle
分类号:
S157
摘要:
采用SDJ-1型三速电动直剪仪对重庆缙云山5种典型植被的原状土抗剪强度进行室内测定，得出其抗剪强度变化规律，通过运用灰色关联法对其影响因子和对5种典型植被进行分析，结果表明：所选取的影响因子对黏聚力C的影响大小依次为：干密度>小于0.001 mm黏粒含量>不均匀系数Cu>根密度>天然含水率>有机质含量；影响因子对内摩擦角φ的影响大小依次为：不均匀系数Cu>小于0.001 mm黏粒含量>天然含水率>干密度>有机质含量>根密度；5种典型植被对土壤抗剪强度影响最大为楠竹林，平权灰色关联度为0.851，最小为灌木林，平权灰色关联度为0.711，说明楠竹林土壤在自然条件下具有较大的抗剪强度。
Abstract:
The anti-shear strength of the undisturbed soil of five typical vegetations was tested in laboratory using the SDJ-1 instrument of direct shear, obtained the law of change of anti-shear strength. Grey relational analysis was used to study the influence factors on the anti-shear strength and five typical vegetations. The results indicate that the order of the effects of the influence factors on cohesion is dry density>less than 0.001 mm clay content>coefficient of uniformity Cu>root density>natural water content>organic content; The order of the effects of the influence factors on friction angle is coefficient of uniformity Cu>less than 0.001 mm clay content>natural water content>dry density>organic content>root density; Bamboo forest has the greateat effect on soil anti-shear strength in five typical vegetations, and the equal-weighted grey relation reading is 0.851; Shrub forest has the smallest, and the equal-weighted grey relation reading is 0.711; So the biggest anti-shear strength is shown for bamboo forest soil in natural condition.

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备注/Memo

收稿日期:2006-4-30
基金项目:国家“十五”科技攻关课题“退耕还林工程区水源涵养型植被建设技术研究与示范”（2001BA510B02-01）
作者简介:张晓明（1980- ），男，硕士，主要研究方向：森林水文。

更新日期/Last Update: 1900-01-01