灌木林盖度对风沙土风蚀作用的影响

被引:18
作者
郭雨华
赵廷宁
丁国栋
孙保平
机构
[1] 北京林业大学水土保持学院
关键词
盖度; 风速廓线; 风蚀率; 空气动力学粗糙度;
D O I
暂无
中图分类号
S714 [森林土壤学];
学科分类号
0903 ; 090301 ;
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。
引用
收藏
页码:245 / 247+251 +251
页数:4
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