Spatial and depth variability of streambed vertical hydraulic conductivity under the regional flow regimes

doi:10.1002/hyp.13241

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	Spatial and depth variability of streambed vertical hydraulic conductivity under the regional flow regimes
	Hongtao Guo 4; Junlong Zhang 2,6; Guotao Zhang 5; Qi Liu 2; Wang, LP (reprint author), Northwest Univ, Coll Urban & Environm Sci, Shaanxi Key Lab Earth Surface Syst & Environm Car, Xian 710119, Shaanxi, Peoples R China.; Bo Zhang 2; Jinxi Song 1,7; Liping Wang 2,3; Xinyi Dou 2; Fangjian Wang 2
刊名	HYDROLOGICAL PROCESSES
	2018
卷号	32 期号:19 页码:3006-3018
关键词	Clogging Level Regional Flow Spatial And Depth Variability Streambed Grain Size Streambed Vertical Hydraulic Conductivity (K-v)
ISSN号	0885-6087
DOI	10.1002/hyp.13241
文献子类	Article
英文摘要	This study investigated the influence of the regional flow on the streambed vertical hydraulic conductivity (K-v) within the hyporheic zone in three stream reaches of the Weihe River in July 2016. The streambed K-v with two connected depths was investigated at each test reach. Based on the sediment characteristics, the three test reaches could be divided into three categories: a sandy streambed without continuous silt and clay layer, a sandy streambed with continuous silt and clay layer, and a silt-clay streambed. The results demonstrate that the streambed K-v mainly decreases with the depth at the sandy streambed (without continuous silt and clay layer) and increases with the depth at the other two test reaches. At the sandy streambed (with continuous silt and clay layer) where streambed K-v mainly decreases with the depth, the regional upward flux can suspend fine particles and enhance the pore spacing, resulting in the elevated K-v in the upper sediment layers. At another sandy streambed, the continuous silt and clay layer is the main factor that influences the vertical distribution of fine particles and streambed K-v. An increase in streambed K-v with the depth at the silt/clay streambed is attributed to the regional downward movement of water within the sediments that may lead to more fine particles deposited in the pores in the upper sediment layers. The streambed K-v is very close to the bank in the sandy streambed without continuous silt and clay layer and the channel centre in the other two test reaches. Differences in grain size distribution of the sediments at each test reach exercise a strong controlling influence on the streambed K-v. This study promotes the understanding of dynamics influencing the interactions between groundwater and surface water and provides guidelines to scientific water resources management for rivers.
学科主题	Water Resources
出版地	111 RIVER ST, HOBOKEN 07030-5774, NJ USA
语种	英语
出版者	WILEY
WOS记录号	WOS:000442849100006
资助机构	National Natural Science Foundation of China [51679200, 51379175, 51079123] ; National Natural Science Foundation of China [51679200, 51379175, 51079123] ; Program for Key Science and Technology Innovation Team in Shaanxi Province [2014KCT-27] ; Program for Key Science and Technology Innovation Team in Shaanxi Province [2014KCT-27] ; Hundred Talents Project of the Chinese Academy of Sciences [A315021406] ; Hundred Talents Project of the Chinese Academy of Sciences [A315021406] ; National Natural Science Foundation of China [51679200, 51379175, 51079123] ; National Natural Science Foundation of China [51679200, 51379175, 51079123] ; Program for Key Science and Technology Innovation Team in Shaanxi Province [2014KCT-27] ; Program for Key Science and Technology Innovation Team in Shaanxi Province [2014KCT-27] ; Hundred Talents Project of the Chinese Academy of Sciences [A315021406] ; Hundred Talents Project of the Chinese Academy of Sciences [A315021406]
内容类型	期刊论文
源URL	[http://ir.iswc.ac.cn/handle/361005/8184]
专题	水保所科研产出--SCI_2018--SCI
通讯作者	Wang, LP (reprint author), Northwest Univ, Coll Urban & Environm Sci, Shaanxi Key Lab Earth Surface Syst & Environm Car, Xian 710119, Shaanxi, Peoples R China.
作者单位	1.MWR, Yangling, Shaanxi, Peoples R China 2.Northwest Univ, Coll Urban & Environm Sci, Shaanxi Key Lab Earth Surface Syst & Environm Car, Xian 710119, Shaanxi, Peoples R China 3.Shaanxi Radio & Televis Univ, Shaanxi Business Coll, Xian, Shaanxi, Peoples R China 4.Chongqing Res Acad Environm Sci, Inst Ecol & Environm Sci, Chongqing, Peoples R China 5.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu, Sichuan, Peoples R China 6.Shandong Normal Univ, Coll Geog & Environm, Jinan, Shandong, Peoples R China 7.Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Hongtao Guo,Junlong Zhang,Guotao Zhang,et al. Spatial and depth variability of streambed vertical hydraulic conductivity under the regional flow regimes[J]. HYDROLOGICAL PROCESSES,2018,32(19):3006-3018.
APA	Hongtao Guo.,Junlong Zhang.,Guotao Zhang.,Qi Liu.,Wang, LP .,...&Fangjian Wang.(2018).Spatial and depth variability of streambed vertical hydraulic conductivity under the regional flow regimes.HYDROLOGICAL PROCESSES,32(19),3006-3018.
MLA	Hongtao Guo,et al."Spatial and depth variability of streambed vertical hydraulic conductivity under the regional flow regimes".HYDROLOGICAL PROCESSES 32.19(2018):3006-3018.