[1]郭雨华,赵廷宁,丁国栋,等.灌木林盖度对风沙土风蚀作用的影响[J].水土保持研究,2006,13(05):245-247,251.
　GUO Yu-hua,ZHAO Ting-ning,DING Guo-dong,et al.Influence of Shrub Coverage on the Wind Erosion of Sandy Soil[J].Research of Soil and Water Conservation,2006,13(05):245-247,251.
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灌木林盖度对风沙土风蚀作用的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 13 期数: 2006年05期 页码: 245-247,251 栏目: 出版日期: 1900-01-01
Title:
Influence of Shrub Coverage on the Wind Erosion of Sandy Soil
作者:
郭雨华, 赵廷宁, 丁国栋, 孙保平
北京林业大学水土保持学院, 北京, 100083
Author(s):
GUO Yu-hua, ZHAO Ting-ning, DING Guo-dong, SUN Bao-ping
College of Soil and Water Conservation, Beijing Forestry University, Beijing, 100083, China
关键词:
盖度; 风速廓线; 风蚀率; 空气动力学粗糙度
Keywords:
coverage; wind profile; wind erosion rate; aerodynamic roughness length
分类号:
S157
摘要:
通过野外实地调查和定位观测,系统研究了灌木林盖度对风沙土风蚀的影响.结果表明:临界侵蚀风速与灌木林盖度之间为非线性正相关关系;风速廓线受灌木林盖度的影响显著;风蚀率随灌木林盖度的减少呈指数增加;灌木林盖度、气流场特征及风蚀性质之间存在着较好的对应关系;空气动力学粗糙度及零风速平面位移高度均与灌木林盖度之间呈幂函数关系.
Abstract:
Through field investigation and observation,the influences of shrub coverage on soil erosion by wind were systematically studied.The result indicated that threshold wind velocity of soil erosion is non-linearly and positively related to shrub coverage;and the wind profile is influenced remarkably by shrub coverage;wind erosion rate increases exponentially with the coverage reduction;there exists power relationship between aerodynamic roughness length and shrub coverage,as well as displacement height.

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备注/Memo

收稿日期:2005-12-23。
基金项目:科技部首都圈防沙治沙应急技术示范与研究—燕山丘陵山地(河北丰宁)防沙治沙技术示范区项目(FS2000-004)资助
作者简介:郭雨华(1982- ),男,湖北荆州人,硕士研究生,主要研究方向:水土保持与荒漠化防治;

更新日期/Last Update: 1900-01-01