中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地理科学与资源研究所
  3. 中国科学院地理科学与资源研究所
Precipitation recharges the shallow groundwater of check dams in the loessial hilly and gully region of China

文献类型：期刊论文

作者Luo, Zhanbin2,3; Yong, Chenxu2,3; Fan, Jun1,2; Shao, Ming'an1,2; Wang, Sheng2,4; Jin, Mu2,3
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2020-11-10
卷号742页码:12
关键词Precipitation Check dam Groundwater level Base flow Loess Plateau
ISSN号0048-9697
DOI10.1016/j.scitotenv.2020.140625
通讯作者Fan, Jun(fanjun@ms.iswc.ac.cn)
英文摘要Check dams affect regional hydrological cycles and ecological environments. We conducted a field monitoring experiment in the Liudaogou Catchment on the Loess Plateau in China to determine the spatiotemporal response of shallow groundwater recharge and base flow by precipitation in check dams of this loessial hilly and gully region. The amount and seasonal distribution of precipitation directly affected the changes in shallow groundwater and base flow. The shallow groundwater was recharged by in situ vertical infiltration and lateral underground movement. Precipitation >30.0 mm d(-1) recharged the shallow groundwater by piston flow when the water table in the check dam was <4.0 m. When the water table varied from the head (>4.0 m) to the middle and tail (<4.0 m) of the check dam, the influx of precipitation was by runoff in the catchment above the trench head, replenishing the groundwater vertically through the trench head and then moving laterally underground to the end of the dam. The response of the base flow and groundwater lagged the precipitation by a certain period. The lag time of the base flow was about 5-16 days, inwhich the response was more sensitive than for shallow groundwater. The lag time of the vertical supply for the response of the precipitation to the shallow groundwater was about 12-54 days, whereas the lag time for the lateral supply was about 72-93 days. The lag time may be associated with precipitation, temperature, solar radiation, vegetation water consumption and soil porosity. These findings will help elucidate the processes of groundwater recharge and provide new insight for managing the water balance in this loessial hilly and gully region. (C) 2020 Elsevier B.V. All rights reserved.
WOS关键词LAND-USE CHANGE ; DRIED SOIL LAYERS ; UNSATURATED ZONE ; LIUDAOGOU CATCHMENT ; CLIMATE VARIABILITY ; FOREST VEGETATION ; SEMIARID REGION ; LEVEL RESPONSE ; WATER-MOVEMENT ; PLATEAU
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23070202] ; National Natural Science Foundation of China[41977016]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000569416800004
出版者ELSEVIER
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/156905]  
专题中国科学院地理科学与资源研究所
通讯作者Fan, Jun
作者单位1.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
3.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China
4.Southwest Univ, Coll Resources & Environm, Chongqing 400715, Peoples R China
推荐引用方式
GB/T 7714		 Luo, Zhanbin,Yong, Chenxu,Fan, Jun,et al. Precipitation recharges the shallow groundwater of check dams in the loessial hilly and gully region of China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,742:12.
APA Luo, Zhanbin,Yong, Chenxu,Fan, Jun,Shao, Ming'an,Wang, Sheng,&Jin, Mu.(2020).Precipitation recharges the shallow groundwater of check dams in the loessial hilly and gully region of China.SCIENCE OF THE TOTAL ENVIRONMENT,742,12.
MLA Luo, Zhanbin,et al."Precipitation recharges the shallow groundwater of check dams in the loessial hilly and gully region of China".SCIENCE OF THE TOTAL ENVIRONMENT 742(2020):12.

入库方式： OAI收割

来源：地理科学与资源研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。