Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s40333-015-0126-9 |
Blown sand motion within the sand-control system in the southern section of the Taklimakan Desert Highway | |
Cheng Hong1,2; He Jiajia1,2; Xu Xingri1,2,3; Zou Xueyong1,2; Wu Yongqiu1,2; Liu Chenchen1,2; Dong Yifan1,2; Pan Meihui1,2; Wang Yanzai1,2; Zhang Hongyan1,2 | |
通讯作者 | He Jiajia |
来源期刊 | JOURNAL OF ARID LAND
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ISSN | 1674-6767 |
EISSN | 2194-7783 |
出版年 | 2015 |
卷号 | 7期号:5页码:599-611 |
英文摘要 | Although scientists have performed many studies in the Taklimakan Desert, few of them have reported the blown sand motion along the southern edge of the Taklimakan Desert Highway, which differs significantly from the northern region in terms of aeolian sand geomorphology and formation environment. Based on the field observation data of airflow and aeolian sand transport, continuous monitoring data of erosional and depositional processes between 14 April 2009 and 9 April 2011 and data of surface sand grains from the classical section along the southern edge of the Taklimakan Desert Highway, this paper reported the blown sand motion within the sand-control system of the highway. The main results are as follows: 1) The existing sand-control system is highly effective in preventing and controlling desertification. Wind velocities within the sand-control system were approximately 33%-100% of those for the same height above the mobile sand surface. Aeolian sand fluxes were approximately 0-31.21% of those of the mobile sand surface. Sand grains inside the system, with a mean diameter of 2.89 phi, were finer than those (2.15 phi) outside the system. In addition, wind velocities basically followed a logarithmic law, but the airflow along the classical section was mainly determined by topography and vegetation. 2) There were obvious erosional and depositional phenomena above the surface within the sand-control system, and these phenomena have very consistent patterns for all observation points in the two observed years. The total thicknesses of erosion and deposition ranged from 0.30 to 14.60 cm, with a mean value of 3.67 cm. In contrast, the deposition thicknesses were 1.90-22.10 cm, with a mean value of 7.59 cm, and the erosion thicknesses were 3.51-15.10 cm, with a mean value of 8.75 cm. The results will aid our understanding of blown sand within the sand-control system and provide a strong foundation for optimizing the sand-control system. |
英文关键词 | sand-control system blown sand motion erosion deposition Taklimakan Desert Highway |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000357500800004 |
WOS关键词 | EOLIAN SALTATION ; AIR-FLOW ; DUNES ; SIMULATION ; CHINA ; FLUX |
WOS类目 | Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
来源机构 | 北京师范大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/188401 |
作者单位 | 1.Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China; 2.Beijing Normal Univ, MOE Engn Ctr Desertificat & Blown Sand Control, Beijing 100875, Peoples R China; 3.Lushunkou Trading Ctr Land Reserve, Dalian 116041, Peoples R China |
推荐引用方式 GB/T 7714 | Cheng Hong,He Jiajia,Xu Xingri,et al. Blown sand motion within the sand-control system in the southern section of the Taklimakan Desert Highway[J]. 北京师范大学,2015,7(5):599-611. |
APA | Cheng Hong.,He Jiajia.,Xu Xingri.,Zou Xueyong.,Wu Yongqiu.,...&Zhang Hongyan.(2015).Blown sand motion within the sand-control system in the southern section of the Taklimakan Desert Highway.JOURNAL OF ARID LAND,7(5),599-611. |
MLA | Cheng Hong,et al."Blown sand motion within the sand-control system in the southern section of the Taklimakan Desert Highway".JOURNAL OF ARID LAND 7.5(2015):599-611. |
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