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Spatial and depth variability of streambed vertical hydraulic conductivity under the regional flow regimes
Jinxi Song1,2; Liping Wang3,4; Xinyi Dou3; Fangjian Wang3; Hongtao Guo5; Junlong Zhang3,6; Guotao Zhang7; Qi Liu3; Bo Zhang3; Wang, LP (reprint author), Northwest Univ, Coll Urban & Environm Sci, Shaanxi Key Lab Earth Surface Syst & Environm Car, Xian 710119, Shaanxi, Peoples R China.
SubtypeArticle
2018
Source PublicationHYDROLOGICAL PROCESSES
ISSN0885-6087
description.correspondentemaillipingwang@stumail.nwu.edu.cn
Volume32Issue:19Pages:3006-3018
AbstractThis 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.
KeywordClogging Level Regional Flow Spatial And Depth Variability Streambed Grain Size Streambed Vertical Hydraulic Conductivity (K-v)
Subject AreaWater Resources
DOI10.1002/hyp.13241
Indexed BySCI
Publication Place111 RIVER ST, HOBOKEN 07030-5774, NJ USA
Language英语
WOS IDWOS:000442849100006
PublisherWILEY
Funding OrganizationNational 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]
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Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8184
Collection水保所科研产出--SCI_2018--SCI
Corresponding AuthorWang, LP (reprint author), Northwest Univ, Coll Urban & Environm Sci, Shaanxi Key Lab Earth Surface Syst & Environm Car, Xian 710119, Shaanxi, Peoples R China.
Affiliation1.Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China
2.MWR, Yangling, Shaanxi, Peoples R China
3.Northwest Univ, Coll Urban & Environm Sci, Shaanxi Key Lab Earth Surface Syst & Environm Car, Xian 710119, Shaanxi, Peoples R China
4.Shaanxi Radio & Televis Univ, Shaanxi Business Coll, Xian, Shaanxi, Peoples R China
5.Chongqing Res Acad Environm Sci, Inst Ecol & Environm Sci, Chongqing, Peoples R China
6.Shandong Normal Univ, Coll Geog & Environm, Jinan, Shandong, Peoples R China
7.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu, Sichuan, Peoples R China
Recommended Citation
GB/T 7714
Jinxi Song,Liping Wang,Xinyi Dou,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 Jinxi Song.,Liping Wang.,Xinyi Dou.,Fangjian Wang.,Hongtao Guo.,...&Wang, LP .(2018).Spatial and depth variability of streambed vertical hydraulic conductivity under the regional flow regimes.HYDROLOGICAL PROCESSES,32(19),3006-3018.
MLA Jinxi Song,et al."Spatial and depth variability of streambed vertical hydraulic conductivity under the regional flow regimes".HYDROLOGICAL PROCESSES 32.19(2018):3006-3018.
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