Aerodynamic roughness of cultivated soil and its influences on soil erosion by wind in a wind tunnel
文献类型：期刊论文
| 作者 | Zhang, CL; Zou, XY; Gong, JR; Liu, LY; Liu, YZ |
| 刊名 | SOIL & TILLAGE RESEARCH
 |
| 出版日期 | 2004 |
| 卷号 | 75期号:1页码:53-59 |
| 关键词 | aerodynamic roughness cultivated soil soil wind erosion wind tunnel test |
| ISSN号 | 0167-1987 |
| DOI | 10.1016/S0167-1987(03)00159-4 |
| 通讯作者 | Zou, XY() |
| 英文摘要 | Serious soil erosion on cultivated soil by wind occurs extensively in semiarid regions. Surface roughness of cultivated soil that can be characterized by aerodynamic roughness length (z(0)) has important implications to wind erosion. Here we report the wind tunnel results of aerodynamic roughness lengths of five treated soils and soil wind erosion rates at different z(0) and wind velocities. The results suggest that the diameter of the largest soil clods exposed and uniformly distributed on the soil surface is an important factor that controls aerodynamic roughness length. Negatively related to aerodynamic roughness length under provided wind velocity, wind erosion rate is a function of z(0) and wind velocity for cultivated soil. Erosion rates decreased with aerodynamic roughness length especially when z(0) is smaller than 0.1 cm and increase non-linearly with wind velocity, and that the smaller the aerodynamic roughness is, the more rapid that increase will be. Regression model comprising z(0) and wind velocity is developed for predicting wind erosion rates for cultivated soil, which quantitatively reflects the influences of aerodynamic roughness length on soil erosion at various wind velocities. (C) 2003 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | SURFACE-ROUGHNESS ; TILLAGE ; LENGTH ; ERODIBILITY ; ELEMENTS ; MOVEMENT ; RIDGES ; SAND |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000188538200005 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555640 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Zou, XY |
| 作者单位 | 1.Beijing Normal Univ, Inst Resources Sci, China Ctr Desert Res,Minist Educ China, Key Lab Environm Change & Nat Disaster, Beijing 100875, Peoples R China 2.Chinese Acad Sci, Cold & Arid Environm & Engn Res Inst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, CL,Zou, XY,Gong, JR,et al. Aerodynamic roughness of cultivated soil and its influences on soil erosion by wind in a wind tunnel[J]. SOIL & TILLAGE RESEARCH,2004,75(1):53-59. |
| APA | Zhang, CL,Zou, XY,Gong, JR,Liu, LY,&Liu, YZ.(2004).Aerodynamic roughness of cultivated soil and its influences on soil erosion by wind in a wind tunnel.SOIL & TILLAGE RESEARCH,75(1),53-59. |
| MLA | Zhang, CL,et al."Aerodynamic roughness of cultivated soil and its influences on soil erosion by wind in a wind tunnel".SOIL & TILLAGE RESEARCH 75.1(2004):53-59. |
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来源：寒区旱区环境与工程研究所
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