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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
Zhao, Wenzhi; Hu, Guanglu; Zhang, Zhihui; He, Zhibin
2008-06-03
Source PublicationECOLOGICAL ENGINEERING
Volume33Issue:2Pages:119-125
AbstractSandstorms 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.
SubtypeArticle
KeywordShielding Effect Oasis-protection System Sand Transportation Rate Oasis Desertification
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Technology
WOS Subject ExtendedEnvironmental Sciences & Ecology ; Engineering
WOS KeywordFIELD CALIBRATION ; TUNNEL
Indexed BySCI
Language英语
WOS SubjectEcology ; Engineering, Environmental ; Environmental Sciences
WOS IDWOS:000256608200004
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:46[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/67920
Collection中国科学院地理科学与资源研究所
Corresponding AuthorZhao, Wenzhi
AffiliationChinese 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
Recommended Citation
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.
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