气候变化领域集成服务门户(CCPortal): Spatiotemporal variations of suspended sediment transport in the upstream and midstream of the Yarlung Tsangpo River (the upper Brahmaputra), China

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DOI	10.1002/esp.4258
	Spatiotemporal variations of suspended sediment transport in the upstream and midstream of the Yarlung Tsangpo River (the upper Brahmaputra), China
	Shi, Xiaonan; Zhang, Fan; Lu, Xixi; Wang, Zhaoyin; Gong, Tongliang; Wang, Guanxing; Zhang, Hongbo
通讯作者	Zhang, F (通讯作者)
发表日期	2018
ISSN	0197-9337
EISSN	1096-9837
起始页码	432
结束页码	443
卷号	43 期号:2
英文摘要	The Yarlung Tsangpo River, which flows from west to east across the southern part of the Tibetan Plateau, is the longest river on the plateau and an important center for human habitation in Tibet. Suspended sediment in the river can be used as an important proxy for evaluating regional soil erosion and ecological and environmental conditions. However, sediment transport in the river is rarely reported due to data scarcity. Results from this study based on a daily dataset of 3years from four main stream gauging stations confirmed the existence of great spatiotemporal variability in suspended sediment transport in the Yarlung Tsangpo River, under interactions of monsoon climate and topographical variability. Temporally, sediment transport or deposition mainly occurred during the summer months from July to September, accounting for 79% to 93% of annual gross sediment load. This coincided with the rainy season from June to August that accounted for 51% to 80% of annual gross precipitation and the flood period from July to September that accounted for approximately 60% of annual gross discharge. The highest specific sediment yield of 177.6t/km(2)/yr occurred in the upper midstream with the highest erosion intensity. The lower midstream was dominated by deposition, trapping approximately 40% of total sediment input from its upstream area. Sediment load transported to the midstream terminus was 10.43 Mt/yr with a basin average specific sediment yield of 54t/km(2)/yr. Comparison with other plateau-originated rivers like the upper Yellow River, the upper Yangtze River, the upper Indus River, and the Mekong River indicated that sediment contribution from the studied area was very low. The results provided fundamental information for future studies on soil and water conservation and for the river basin management. Copyright (c) 2017 John Wiley & Sons, Ltd.
关键词	YELLOW-RIVER CHANNEL MORPHOLOGY DISCHARGE REGIME CLIMATE-CHANGE YANGTZE-RIVER BASIN YIELD LOADS PATTERNS EROSION
英文关键词	suspended sediment transport; soil erosion; Yarlung Tsangpo River; Tibetan plateau
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000424164000007
来源期刊	EARTH SURFACE PROCESSES AND LANDFORMS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259260
推荐引用方式 GB/T 7714	Shi, Xiaonan,Zhang, Fan,Lu, Xixi,et al. Spatiotemporal variations of suspended sediment transport in the upstream and midstream of the Yarlung Tsangpo River (the upper Brahmaputra), China[J]. 中国科学院青藏高原研究所,2018,43(2).
APA	Shi, Xiaonan.,Zhang, Fan.,Lu, Xixi.,Wang, Zhaoyin.,Gong, Tongliang.,...&Zhang, Hongbo.(2018).Spatiotemporal variations of suspended sediment transport in the upstream and midstream of the Yarlung Tsangpo River (the upper Brahmaputra), China.EARTH SURFACE PROCESSES AND LANDFORMS,43(2).
MLA	Shi, Xiaonan,et al."Spatiotemporal variations of suspended sediment transport in the upstream and midstream of the Yarlung Tsangpo River (the upper Brahmaputra), China".EARTH SURFACE PROCESSES AND LANDFORMS 43.2(2018).