DOI: 10.1002/2016MS000646
Scopus记录号: 2-s2.0-84978393899
论文题名: Effects of anthropogenic water regulation and groundwater lateral flow on land processes
作者: Zeng Y ; , Xie Z ; , Yu Y ; , Liu S ; , Wang L ; , Zou J ; , Qin P ; , Jia B
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2016
卷: 8, 期: 3 起始页码: 1106
结束页码: 1131
语种: 英语
英文关键词: Heat flux
; Landforms
; Recharging (underground waters)
; Rivers
; Soil moisture
; Surface waters
; Water resources
; Water supply
; Watersheds
; Community land models
; Groundwater depletion cone
; Groundwater exploitation
; Land model
; Lateral Flow
; Simulated ground water
; Terrestrial water storage
; Water regulation
; Groundwater
; anthropogenic effect
; exploitation
; groundwater flow
; headwater
; hillslope
; hydrological modeling
; irrigation
; land management
; latent heat flux
; recharge
; soil moisture
; water management
; water table
; China
; Gansu
; Hei River
英文摘要: Both anthropogenic water regulation and groundwater lateral flow essentially affect groundwater table patterns. Their relationship is close because lateral flow recharges the groundwater depletion cone, which is induced by over-exploitation. In this study, schemes describing groundwater lateral flow and human water regulation were developed and incorporated into the Community Land Model 4.5. To investigate the effects of human water regulation and groundwater lateral flow on land processes as well as the relationship between the two processes, three simulations using the model were conducted for the years 2003–2013 over the Heihe River Basin in northwestern China. Simulations showed that groundwater lateral flow driven by changes in water heads can essentially change the groundwater table pattern with the deeper water table appearing in the hillslope regions and shallower water table appearing in valley bottom regions and plains. Over the last decade, anthropogenic groundwater exploitation deepened the water table by approximately 2 m in the middle reaches of the Heihe River Basin and rapidly reduced the terrestrial water storage, while irrigation increased soil moisture by approximately 0.1 m3 m−3. The water stored in the mainstream of the Heihe River was also reduced by human surface water withdrawal. The latent heat flux was increased by 30 W m−2 over the irrigated region, with an identical decrease in sensible heat flux. The simulated groundwater lateral flow was shown to effectively recharge the groundwater depletion cone caused by over-exploitation. The offset rate is higher in plains than mountainous regions. © 2016. The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75884
Appears in Collections: 影响、适应和脆弱性 气候变化与战略
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作者单位: State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; College of Earth Science, University of Chinese Academy of Sciences, Beijing, China; Zhejiang Institute of Meteorological Sciences, Hangzhou, China; Institute of Oceanographic Instrumentation, Shandong Academy of Sciences, Qingdao, China
Recommended Citation:
Zeng Y,, Xie Z,, Yu Y,et al. Effects of anthropogenic water regulation and groundwater lateral flow on land processes[J]. Journal of Advances in Modeling Earth Systems,2016-01-01,8(3)