Effects of an oasis protective system on aeolian sediment deposition: a case study from Gelintan oasis, southeastern edge of the Tengger Desert, China

doi:10.1007/s11629-019-5952-3

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2020 > Vol17 No.8

	Effects of an oasis protective system on aeolian sediment deposition: a case study from Gelintan oasis, southeastern edge of the Tengger Desert, China
	Ding Jing; Xie Yun-hu; Li Xiao-jia; Jiang Hong-tao; Wang Ji; Liu Xiao-xi; Wu Xue-qin; Wang Yu-hao; Xing Chun-Hai
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2020
卷号	17 期号:8 页码:2023-2034
关键词	Aeolian sediment deposition Desert oasis ecotone Grain size characteristics Oasis protective system Tengger Desert
ISSN号	1672-6316
DOI	10.1007/s11629-019-5952-3
文献子类	Article
英文摘要	Desert-oasis ecotones are boundary areas between oases and desert ecosystems. Large efforts to control sediment and stabilize these boundaries depend on understanding sedimentary processes, especially aeolian transport and deposition. Previous studies on aeolian sediment deposition have focused primarily on a single land surface type or a single engineering approach. Few studies have considered deposition in a multi-layer oasis protective system. A complete oasis protective system consists of an outer bare sand area, a sand barrier zone, a shrub and herbaceous plant zone, and a farmland shelter zone. This study used sedimentary analysis to quantify grain-size characteristics in samples from the four land surfaces under different types of weather conditions in the Gelintan oasis of the Tengger Desert, the fourth largest desert in China. The results showed that aeolian sediment deposition decreased from the outer bare sand area through the oasis protective system and into the interior. The four land surface types showed significant differences in deposition volume (P<0.05). Deposited sediment showed gradual decrease in dominant grain-size from sand to silt, but sediment deposited during dust weather contained a larger coarse-grained fraction. From the outer desert to the inner oasis, transport mechanisms shifted from saltation (sand) to suspension (silt and smaller) in non-dust weather. During dust weather, deposition primarily occurs from near-surface aeolian sand transport with saltation. Sediment sorting decreased from exterior to interior zones of the protective system while skewness and kurtosis showed no significant change (P<0.05). These results can help inform strategies for stabilizing and protecting desert-oasis ecotones in this region and other localities.
电子版国际标准刊号	1993-0321
语种	英语
WOS记录号	WOS:000548813000001
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/50473]
专题	Journal of Mountain Science_Journal of Mountain Science-2020_Vol17 No.8
推荐引用方式 GB/T 7714	Ding Jing,Xie Yun-hu,Li Xiao-jia,et al. Effects of an oasis protective system on aeolian sediment deposition: a case study from Gelintan oasis, southeastern edge of the Tengger Desert, China[J]. JOURNAL OF MOUNTAIN SCIENCE,2020,17(8):2023-2034.
APA	Ding Jing.,Xie Yun-hu.,Li Xiao-jia.,Jiang Hong-tao.,Wang Ji.,...&Xing Chun-Hai.(2020).Effects of an oasis protective system on aeolian sediment deposition: a case study from Gelintan oasis, southeastern edge of the Tengger Desert, China.JOURNAL OF MOUNTAIN SCIENCE,17(8),2023-2034.
MLA	Ding Jing,et al."Effects of an oasis protective system on aeolian sediment deposition: a case study from Gelintan oasis, southeastern edge of the Tengger Desert, China".JOURNAL OF MOUNTAIN SCIENCE 17.8(2020):2023-2034.