Selective deposition response to aeolian-fluvial sediment supply in the desert braided channel of the upper Yellow River, China (SCI)

CORC > 寒区旱区环境与工程研究所 > 中科院寒区旱区环境与工程研究所（未分类） > 期刊论文

	Selective deposition response to aeolian-fluvial sediment supply in the desert braided channel of the upper Yellow River, China (SCI)
	Wang H.; Jia X.; Li Y.; Peng W.
刊名	Natural Hazards and Earth System Sciences
	2015
卷号	15 期号:9 页码:1955-1962
英文摘要	Rivers flow across aeolian dunes and develop braided stream channels. Both aeolian and fluvial sediment supplies regulate sediment transport and deposition in such cross-dune braided rivers. Here we show a significant selective deposition in response to both aeolian and fluvial sediment supplies in the Ulan Buh desert braided channel. The Ulan Buh desert is the main coarse sediment source for this desert braided channel, and the mean percentage of the coarser (> 0.08 mm) grains on the aeolian dunes surface is 95.34 %. The lateral selective deposition process is developed by the interaction between the flows and the aeolian-fluvial sediment supplies, causing the coarser sediments (> 0.08 mm) from aeolian sand supply and bank erosion to accumulate in the channel centre and the finer fluvial sediments (< 0.08 mm) to be deposited on the bar and floodplain surfaces, forming a coarser-grained thalweg bed bounded by finer-grained floodplain surfaces. This lateral selective deposition reduces the downstream sediment transport and is a primary reason for the formation of an "above-ground" river in the braided reach of the upper Yellow River in response to aeolian and fluvial sediment supplies.
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.casnw.net/handle/362004/27379]
专题	寒区旱区环境与工程研究所_中科院寒区旱区环境与工程研究所（未分类）_期刊论文
推荐引用方式 GB/T 7714	Wang H.,Jia X.,Li Y.,et al. Selective deposition response to aeolian-fluvial sediment supply in the desert braided channel of the upper Yellow River, China (SCI)[J]. Natural Hazards and Earth System Sciences,2015,15(9):1955-1962.
APA	Wang H.,Jia X.,Li Y.,&Peng W..(2015).Selective deposition response to aeolian-fluvial sediment supply in the desert braided channel of the upper Yellow River, China (SCI).Natural Hazards and Earth System Sciences,15(9),1955-1962.
MLA	Wang H.,et al."Selective deposition response to aeolian-fluvial sediment supply in the desert braided channel of the upper Yellow River, China (SCI)".Natural Hazards and Earth System Sciences 15.9(2015):1955-1962.