Shielding effect of oasis-protection systems composed of various forms of wind break on sand fixation in an arid region: A case study in the Hexi Corridor, northwest China
文献类型：期刊论文
| 作者 | Zhao, Wenzhi; Hu, Guanglu; Zhang, Zhihui; He, Zhibin |
| 刊名 | ECOLOGICAL ENGINEERING
 |
| 出版日期 | 2008-06-03 |
| 卷号 | 33期号:2页码:119-125 |
| 关键词 | Shielding Effect Oasis-protection System Sand Transportation Rate Oasis Desertification |
| 文献子类 | Article |
| 英文摘要 | Sandstorms are catastrophic weather phenomena that occur frequently in and and semi-and areas, with enormous effects on the ecological environment and human health. Particularly around oases, desertification is the major obstacle to sustainable development of oases in and regions of northwest China. At present, the problem of how to build an optimal oasis-protection system must be resolved by local farmers and scientists. This paper used data on the sand transportation rate, wind speed, and the width and water requirement of vegetative barriers to evaluate the shielding effect of an oasis-protection system. The results showed that integrating straw checkerboards, a sand-fixing plant belt, and a farmland shelterbelt provided an effective oasis-protection system in the transitional zone between an oasis and shifting dunes. The system can reduce wind speed by 70% and the sand transportation rate by 96% when wind reached the farmland after passing through the oasis-protection system. For the transitional zone between the oasis and a Gobi desert, a desert vegetation preservation belt, a windbreak belt, a mixed belt that combines production forest and forage grass, and a farmland shelterbelt also provided significant shelter, and reduced wind speed and the sand transportation rate by 70 and 80%, respectively. For an optimal oasis-protection system, the width and water requirements of the vegetation barriers were also crucial factors because water resources are an important limiting factor for maintaining vegetation barriers in the long-term. (c) 2008 Elsevier B.V. All rights reserved. |
| WOS关键词 | FIELD CALIBRATION ; TUNNEL |
| 语种 | 英语 |
| WOS记录号 | WOS:000256608200004 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/67919]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhao, Wenzhi |
| 作者单位 | Chinese Acad Sci, Linze Inland River Basin Res Stn, Chinese Ecosyst Res Network, Lab Watershed Hydrol & Ecol,Cold & Arid Reg Envir, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Wenzhi,Hu, Guanglu,Zhang, Zhihui,et al. Shielding effect of oasis-protection systems composed of various forms of wind break on sand fixation in an arid region: A case study in the Hexi Corridor, northwest China[J]. ECOLOGICAL ENGINEERING,2008,33(2):119-125. |
| APA | Zhao, Wenzhi,Hu, Guanglu,Zhang, Zhihui,&He, Zhibin.(2008).Shielding effect of oasis-protection systems composed of various forms of wind break on sand fixation in an arid region: A case study in the Hexi Corridor, northwest China.ECOLOGICAL ENGINEERING,33(2),119-125. |
| MLA | Zhao, Wenzhi,et al."Shielding effect of oasis-protection systems composed of various forms of wind break on sand fixation in an arid region: A case study in the Hexi Corridor, northwest China".ECOLOGICAL ENGINEERING 33.2(2008):119-125. |
入库方式： OAI收割
来源：地理科学与资源研究所
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