KMS Institute of Mountain Hazards and Environment,CAS
| Spatial and depth variability of streambed vertical hydraulic conductivity under the regional flow regimes | |
| Song, Jinxi1,2,3; Wang, Liping3,4; Dou, Xinyi3; Wang, Fangjian3; Guo, Hongtao5; Zhang, Junlong3,6; Zhang, Guotao7; Liu, Qi3; Zhang, Bo3 | |
| Corresponding Author | Wang, Liping |
| 2018-09-15 | |
| Source Publication | HYDROLOGICAL PROCESSES
 |
| ISSN | 0885-6087 |
| EISSN | 1099-1085 |
| Volume | 32Issue:19Pages:3006-3018 |
| Subtype | Article |
| Contribution Rank | 7 |
| Abstract | 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. |
| Keyword | clogging level regional flow spatial and depth variability streambed grain size streambed vertical hydraulic conductivity (K-v) |
| DOI | 10.1002/hyp.13241 |
| Indexed By | SCI |
| WOS Keyword | DISTRIBUTION PATTERNS ; GROUNDWATER ; WATER ; DISCHARGE ; RIVERS ; HETEROGENEITY ; SEDIMENTS ; NEBRASKA ; EXCHANGE ; CREEK |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51679200] ; National Natural Science Foundation of China[51379175] ; National Natural Science Foundation of China[51079123] ; Program for Key Science and Technology Innovation Team in Shaanxi Province[2014KCT-27] ; Hundred Talents Project of the Chinese Academy of Sciences[A315021406] |
| WOS Research Area | Water Resources |
| WOS Subject | Water Resources |
| WOS ID | WOS:000442849100006 |
| Funding Organization | National Natural Science Foundation of China ; Program for Key Science and Technology Innovation Team in Shaanxi Province ; Hundred Talents Project of the Chinese Academy of Sciences |
| Publisher | WILEY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/23740 |
| Collection | 中国科学院水利部成都山地灾害与环境研究所 |
| Corresponding Author | Wang, Liping |
| Affiliation | 1.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 | Song, Jinxi,Wang, Liping,Dou, Xinyi,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 | Song, Jinxi.,Wang, Liping.,Dou, Xinyi.,Wang, Fangjian.,Guo, Hongtao.,...&Zhang, Bo.(2018).Spatial and depth variability of streambed vertical hydraulic conductivity under the regional flow regimes.HYDROLOGICAL PROCESSES,32(19),3006-3018. |
| MLA | Song, Jinxi,et al."Spatial and depth variability of streambed vertical hydraulic conductivity under the regional flow regimes".HYDROLOGICAL PROCESSES 32.19(2018):3006-3018. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Spatial and depth va（1439KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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