| 灌木林对地表风况及空气动力学参数影响的野外调查研究——以丰宁满族自治县小坝子乡为例 |
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| 引用本文： | 郭雨华,赵廷宁,孙保平,丁国栋,王贤.灌木林对地表风况及空气动力学参数影响的野外调查研究——以丰宁满族自治县小坝子乡为例[J].林业调查规划,2006,31(4):72-76. |
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| 作者姓名： | 郭雨华 赵廷宁 孙保平 丁国栋 王贤 |
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| 作者单位： | 北京林业大学水土保持学院,水土保持与荒漠化防治教育部重点实验室,北京,100083 |
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| 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. |
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| 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和高度对地表风况及空气动力学参数的影响。结果表明:风速轮廓线受灌木林覆盖度和高度的影响显著;风蚀率随灌木林覆盖度的减少呈指数增加,灌木林高度对土壤风蚀影响相对较小。空气动力学粗糙度及零风速平面位移高度均与灌木林覆盖度之间呈幂函数关系。灌木林高度对空气动力学粗糙度的影响不明显。
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| 关 键 词： | 风速轮廓线 风蚀率 空气动力学参数 灌木林 |
| 文章编号： | 1671-3168（2006）04-0072-04 |
| 收稿时间： | 2006-03-01 |
| 修稿时间： | 2006年3月1日 |
Field Study on Impact of Shrub on Surface Wind and Aerodynamic Parameters——A Case Study of Xiaobazi Township |
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| GUO Yu-hua,ZHAO Ting-ning,SUN Bao-ping,DING Guo-dong,WANG Xian.Field Study on Impact of Shrub on Surface Wind and Aerodynamic Parameters——A Case Study of Xiaobazi Township[J].Forest Inventory and Planning,2006,31(4):72-76. |
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| Authors: | GUO Yu-hua ZHAO Ting-ning SUN Bao-ping DING Guo-dong WANG Xian |
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| Abstract: | The impact of shrub coverage and height on surface wind and aerodynamic parameters is systematically studied through field study and fixed observation.The results reveal that the wind profile is influenced remarkably by shrub coverage and height;surface wind erosion rate increases exponentially with the coverage reduction;and shrub height has relatively small influence on erosion rate.There exists power functional relationship between aerodynamic roughness degree and shrub coverage.But there is no significance in shrub height. |
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| Keywords: | wind profile wind erosion rate aerodynamic parameter shrub |
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