空气动力学粗糙度是影响植被覆盖土壤抗风蚀能力的重要因素。
Surface roughness is an important feature that affects vegetation coverage soil against wind erosion.
耕作土壤表面空气动力学粗糙度是评价土壤可蚀性的重要指标。
Aerodynamic roughness length is a important feature to easement soil resistance to wind erosion.
耕作土壤表面空气动力学粗糙度是评价土壤可蚀性的重要指标。
Aerodynamics roughness length is one of important indexes for estimating topsoil erosion.
结果表明，空气动力学粗糙度和零平面位移总体是逐年递增的。
We find the aerodynamical roughness length and the zero plane displacement is increasing with the development of the urbanization in recent decade years.
利用风速廓线法测定小麦不同生长期的空气动力学粗糙度：青苗期的平均粗糙度最大，为6。
Using wind velocity profile law determinate the aerodynamic roughness length of wheats different growth periods: the average roughness of shooting period, is 6.
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。
Vegetation characteristics, such as height, density, coverage, lateral coverage of vegetation are closely related to the aerodynamic roughness length.
此外，作物残茬、秸秆和牧草等粗糙元的高度、密度及直立性均对下垫面的空气动力学粗糙度、摩阻速度及风速脉动有一定影响。
In addition, the height, density and perpendicularity of remnant stubble, straws and grass had influence on aerodynamic roughness and wind velocity fluctuation on different underlying surfaces.
此外，作物残茬、秸秆和牧草等粗糙元的高度、密度及直立性均对下垫面的空气动力学粗糙度、摩阻速度及风速脉动有一定影响。
In addition, the height, density and perpendicularity of remnant stubble, straws and grass had influence on aerodynamic roughness and wind velocity fluctuation on different underlying surfaces.
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