Wind tunnel simulation of aeolian sandy soil erodibility under human disturbance
文献类型：期刊论文
| 作者 | Li, XY; Liu, LY; Wang, JH |
| 刊名 | GEOMORPHOLOGY
 |
| 出版日期 | 2004-04-02 |
| 卷号 | 59期号:1-4页码:3-11 |
| 关键词 | human disturbance aeolian sandy soil erodibility wind erosion |
| ISSN号 | 0169-555X |
| DOI | 10.1016/j.geomorph.2003.09.001 |
| 通讯作者 | Li, XY(xyli@ns.lzb.ac.cn) |
| 英文摘要 | Inappropriate anthropogenic activities such as overcultivation and overgrazing of steppe and excessive collection of fuelwood are largely responsible for current desertification in China. However, quantitative information concerning the impacts of human disturbance on soil erosion remains sparse. This study investigated aeolian sandy soil erodibility under human disturbance by wind tunnel simulation. The fixed aeolian sandy soils were taken from an artificial vegetation protective system on mobile dunes at the southeastern edge of the Tengger Desert. The results indicate that: (1) human disturbance such as cultivation can accelerate the erodibility of the fixed aeolian sandy soil. The ratio between total soil loss from the undisturbed soil and the cultivated soil is about 0.004; (2) surface vegetation and microbiotic crust are the main factors responsible for the natural wind erodibility of the fixed sandy soil. Wind erosion rate increases with decreasing percent of the vegetation and crust cover; (3) the grain size distribution shows a higher percentage of particles in the range >1.0 mm and a lower percentage in the range <0.05 mm for the cultivated sandy soil than for the undisturbed fixed sandy soil. (C) 2003 Elsevier B.V. All rights reserved. |
| 收录类别 | ISTP ; SCI |
| WOS关键词 | STABILIZED DESERT DUNES ; WINDBLOWN SEDIMENT ; NORTHERN CHINA ; EROSION ; CRUSTS ; DESERTIFICATION ; VEGETATION ; PARTICLES |
| WOS研究方向 | Physical Geography ; Geology |
| WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000220456900002 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555608 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Li, XY |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Beijing Normal Univ, Key Lab Environm Change & Nat Disaster, Beijing 100875, Peoples R China 3.Beijing Normal Univ, China Ctr Desert Res, Beijing 100875, Peoples R China 4.Beijing Normal Univ, Inst Resources Sci, Beijing 100875, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, XY,Liu, LY,Wang, JH. Wind tunnel simulation of aeolian sandy soil erodibility under human disturbance[J]. GEOMORPHOLOGY,2004,59(1-4):3-11. |
| APA | Li, XY,Liu, LY,&Wang, JH.(2004).Wind tunnel simulation of aeolian sandy soil erodibility under human disturbance.GEOMORPHOLOGY,59(1-4),3-11. |
| MLA | Li, XY,et al."Wind tunnel simulation of aeolian sandy soil erodibility under human disturbance".GEOMORPHOLOGY 59.1-4(2004):3-11. |
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来源：寒区旱区环境与工程研究所
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