摘要
由Bagnold提出的空气动力学粗糙度概念,是描述各种表面空气动力学特征的重要参数,已被广泛应用于沙面、植被覆盖表面、雪面、水面等.植被高度、密度、覆盖度、侧影盖度等特征,通过影响下垫面空气动力学粗糙度来达到抑制风蚀的效果.本文系统地总结了近年来空气动力学粗糙度与植被特征关系的研究成果,分析了各种植被特征因素与空气动力学粗糙度的关系,并对影响空气动力学粗糙度的植被因素的研究方向进行了预测.
The concept ＂aerodynamic roughness length＂ defined by Bagnold is an important parameter for wind erosion research. It has been widely applied in sand bed, vegetation conditions, snow bed and water surface. Vegetation characteristics, such as height, density, coverage, lateral coverage of vegetation are closely related to the aerodynamic roughness length. The main research progress of the relationship between aerodynamic roughness length and vegetation characteristics is summarized and analyzed in this paper.
出处
《中央民族大学学报（自然科学版）》
2006年第3期218-225,共8页
Journal of Minzu University of China(Natural Sciences Edition)
基金
中央民族大学"211"建设项目
关键词
风蚀
空气动力学粗糙度
植被特征
wind erosion
aerodynamic roughness length
vegetation characteristics
