Dominant role of climate in determining spatio-temporal distribution of potential groundwater recharge at a regional scale

doi:10.1016/j.jhydrol.2019.124042

IEECAS OpenIR > 生态环境研究室

	Dominant role of climate in determining spatio-temporal distribution of potential groundwater recharge at a regional scale
	Hu, W.1; Wang, Y. Q.2; Li, H. J.3; Huang, M. B.4; Hou, M. T.5; Li, Z.6; She, D. L.4; Si, B. C.3,7
通讯作者	Hu, W.(Wei.Hu@plantandfood.co.nz) ; Si, B. C.(Bing.Si@usask.ca)
	2019-11-01
发表期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
卷号	578 页码:13
摘要	Knowledge of spatio-temporal groundwater recharge (GR) is crucial for optimizing regional water management practices. Daily potential GR at 58 sites over the Chinese Loess Plateau (CLP) during 1981-2099 was simulated using the HYDRUS-1D and robust model inputs. The objective was to explore the impacts of soil, vegetation, and climate on potential GR at a regional scale. The median potential GR over the CLP during 1981-2010 was 1.8 cm, accounting for 4.1% of the annual precipitation (P). As dominated by P, the annual potential GR decreased from 18.8 cm (28% of P) at the southeast to 0.0 cm at the northwest. Temporally, consistent low-intensity of GR interspersed with extreme rainfall-induced high GR, being episodic or seasonal depending on sites and years. The lag (average of 5 months) between deep drainage at 3 m depth and rainfall was controlled by climate (i.e., P). From 1981 to 2010, annual potential GR significantly decreased as a result of increased ETp and leaf area index (LAI) over time. A warmer and wetter CLP at the end of this century as predicted by the HadCM3 model may decrease the potential GR because of the increased ETp. This study highlights the dominance of water input factor (P) on the spatial GR and water output factors (ETp and LAI) on the temporal GR. Measures such as water-saving practices and land use optimization should be taken to mitigate climate change effect on groundwater recharge.
关键词	Groundwater recharge HYDRUS-1D Spatial variability Climate change Water balance
DOI	10.1016/j.jhydrol.2019.124042
关键词[WOS]	SEMIARID LOESS PLATEAU ; HIGH-PLAINS AQUIFER ; SOIL-WATER CONTENT ; EXTREME PRECIPITATION ; SPATIAL VARIABILITY ; CHANGE IMPACTS ; LAND-USE ; ROOT DISTRIBUTIONS ; UNSATURATED ZONE ; DEEP DRAINAGE
收录类别	SCI ; SCI
语种	英语
资助项目	National Natural Science Foundation of China[41630860] ; National Natural Science Foundation of China[41571130083] ; National Natural Science Foundation of China[41530854] ; National Natural Science Foundation of China[41722106] ; Natural Sciences and Engineering Research Council (NSERC) of Canada ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA20100304] ; China Meteorological Administration Special Found for Climate Change[CCSF201806] ; New Zealand Institute for Plant & Food Research Limited under the Sustainable Agro-ecosystems programme
WOS研究方向	Engineering ; Geology ; Water Resources
项目资助者	National Natural Science Foundation of China ; Natural Sciences and Engineering Research Council (NSERC) of Canada ; Strategic Priority Research Program of Chinese Academy of Sciences ; China Meteorological Administration Special Found for Climate Change ; New Zealand Institute for Plant & Food Research Limited under the Sustainable Agro-ecosystems programme
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS记录号	WOS:000497250200020
出版者	ELSEVIER
引用统计	被引频次：52[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/12997
专题	生态环境研究室
通讯作者	Hu, W.; Si, B. C.
作者单位	1.New Zealand Inst Plant & Food Res Ltd, Private Bag 4704, Christchurch 8140, New Zealand 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quatemary Geol, Xian 710061, Shaanxi, Peoples R China 3.Ludong Univ, Coll Resources & Environm Engn, Yantai 264025, Shandong, Peoples R China 4.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 5.hina Meteorol Adm, Training Ctr, Beijing 100081, Peoples R China 6.Northwest A&F Univ, Coll Resources & Environm, Yangling 712100, Shaanxi, Peoples R China 7.Univ Saskatchewan, Dept Soil Sci, Saskatoon, SK S7N 5A8, Canada
推荐引用方式 GB/T 7714	Hu, W.,Wang, Y. Q.,Li, H. J.,et al. Dominant role of climate in determining spatio-temporal distribution of potential groundwater recharge at a regional scale[J]. JOURNAL OF HYDROLOGY,2019,578:13.
APA	Hu, W..,Wang, Y. Q..,Li, H. J..,Huang, M. B..,Hou, M. T..,...&Si, B. C..(2019).Dominant role of climate in determining spatio-temporal distribution of potential groundwater recharge at a regional scale.JOURNAL OF HYDROLOGY,578,13.
MLA	Hu, W.,et al."Dominant role of climate in determining spatio-temporal distribution of potential groundwater recharge at a regional scale".JOURNAL OF HYDROLOGY 578(2019):13.