[1]张晓勉,张金池,王云南,等.钱塘江源头主要植被类型土壤抗剪强度研究[J].水土保持研究,2015,22(04):79-84,90.
　ZHANG Xiaomian,ZHANG Jinchi,WANG Yunnan,et al.Research on Soil Shear Strength of the Major Forest Types in Headwaters of Qiantang River[J].Research of Soil and Water Conservation,2015,22(04):79-84,90.
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钱塘江源头主要植被类型土壤抗剪强度研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 22 期数: 2015年04期 页码: 79-84,90 栏目: 出版日期: 2015-08-28
Title:
Research on Soil Shear Strength of the Major Forest Types in Headwaters of Qiantang River
作者:
张晓勉1, 张金池2, 王云南3, 陈茂青4, 岳春雷1, 田刚5, 李世锋3
1. 浙江省林业科学研究院, 杭州 310023;
2. 南京林业大学 南京 210037;
3. 浙江省水利厅, 杭州 310009;
4. 浙江省水利水电勘测设计院, 杭州 310002;
5. 浙江广川工程咨询有限公司, 杭州 310020
Author(s):
ZHANG Xiaomian1, ZHANG Jinchi2, WANG Yunnan3, CHEN Maoqing4, YUE Chunlei1, TIAN Gang5, LI Shifeng3
1. Zhejiang Forestry Academy, Hangzhou 310023, China;
2. Nanjing Forest University, Nanjing 210037, China;
3. Department of Water Resources of Zhejiang Province, Hangzhou 310009, China;
4. Zhejiang Design Institute of Water Conservancy and Hydroelectric Power, Hangzhou 310002, China;
5. Zhejiang-based Guangchuan Engineering Consulting Co., Ltd, Hangzhou 310020, China
关键词:
土壤抗剪强度; 理化性质; 根系特性; 回归模型; 钱塘江源头地区
Keywords:
soil shear strength; physical and chemical properties; root characteristics; regression model; headwaters of Qiantang River
分类号:
S157.5
摘要:
对钱塘江源头地区6种不同林分类型及2个对照类型（茶园、农田）不同土层深度土壤抗剪强度及土壤理化性质和土壤根系特性进行了测定。相关分析结果表明：土壤有机质含量与土壤抗剪强度、土壤粘聚力和内摩擦角呈显著的正相关关系；土壤容重与土壤粘聚力呈显著的正相关关系；粉粒/粘粒与土壤抗剪强度、土壤粘聚力呈显著的负相关关系。抗剪强度与植物根系各指标之间是显著的正相关关系，其中与根体积和根表面积相关性达到极显著水平，与根长和根质量相关性达到显著水平。通过对研究区8种植被类型抗剪强度和影响因子聚类分析得出：毛竹林和灌木林土壤抗剪性能最强；马尾松林、针阔混交林、麻栎林和杉木林次之；茶园和农田土壤抗剪性能较弱。建立了不同等级土壤抗剪强度与影响因子的回归模型，精度达80%~85%。
Abstract:
Soil shear strength, physical and chemical properties and root system traits at different soil layers in 6 forest types and two controls (tea plantation and farmland) were determined in the headwaters of Qiantang River, Zhejiang Province. The relative analysis demonstrated that soil organic matter content had evident positive relation with soil shear strength, cohesion and internal friction angle, soil bulk density had significant relation with cohesion, and ratio of powder to viscosity had negative relation with soil shear strength and cohesion. Soil shear strength had evident positive relation with each root system trait (root length, surface area, volume and weight). Cluster analysis on soil shear strength of 8 tested forest types and influencing factors showed that soil shear strength was the highest in Phyllostachys heterocycla cv. pubescens forest and shrub, followed by Pinus massoniana plantation, coniferous and broad-leaved mixed forest, Quercus acutissima forest and Cunninghamia lanceolata forest, and it was the least in tea garden and farmland. The regression models describing the relation between soil shear strength of different forest types and influencing factors were established for different grades of soil shear strength with accuracy of 80%~85%.

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备注/Memo

收稿日期:2014-05-13;改回日期:2014-08-06。
基金项目:浙江省水利科研项目“浙江省水土保持项目效益监测评价和可持续治理模式研究”
作者简介:张晓勉(1983-),男,河南省镇平县人,助理研究员,博士,主要从事水土保持、森林生态等研究。E-mail:zhangxmzjfa@sina.com.cn
通讯作者:张金池(1962-),男,山东省安丘县人,教授,博士生导师,主要从事林业生态工程、水土保持与荒漠化防治研究。E-mail:zhang8811@njfu.edu.cn

更新日期/Last Update: 1900-01-01