Determining spatio-temporal variations of ecological water consumption by natural oases for sustainable water resources allocation in a hyper-arid endorheic basin

doi:10.1016/j.jclepro.2018.03.025

	Determining spatio-temporal variations of ecological water consumption by natural oases for sustainable water resources allocation in a hyper-arid endorheic basin
	Gao, Guangyao 1,2; Shen, Qin 3; Zhang, Yan 4; Pan, Naiqing 1; Ma, Ying 5; Jiang, Xiaohui 6; Fu, Bojie 1,2
刊名	JOURNAL OF CLEANER PRODUCTION
	2018-06-01
卷号	185 页码:1-13
关键词	Ecological water consumption Desert riparian vegetation SEBS model River flow Heihe river basin
ISSN号	0959-6526
DOI	10.1016/j.jclepro.2018.03.025
通讯作者	Fu, Bojie(bfu@rcees.ac.cn)
英文摘要	Natural oases, including desert riparian vegetation and terminal lakes, play an important role in maintaining the stability and development of endorheic river systems in arid areas. Determining the ecological water consumption (EWC) of natural oases is a critical task for achieving sustainable ecosystem restoration and services in endorheic basins. In this study, the evapotranspiration of natural vegetation, evaporation of water area, and seepage in lakes and rivers were considered in the EWC. The Surface Energy Balance System (SEBS) model was combined with Landsat-8 images and eddy covariance flux measurements to calculate the daily EWC of natural oases in the lower Heihe River Basin (northwest China) during 2014 and 2015. The spatio-temporal variations of EWC were investigated in detail. The SEBS model could satisfactorily simulate the evapotranspiration (ET) of forest, shrub, mixed forest and water body with R-2 value greater than 0.84 and RMSE value less than 0.9 mm/day. The total EWC in 2014 and 2015 was 6.59 x 10(8 )m(3) and 7.65 x 10(8) m(3) , respectively, and the EWC of the Ejina Oasis accounted for approximately 50% of total value in the study area. The cumulative EWC increased gradually with the distance away from the riverbank as an exponential function and reached the plateau at certain distance. The monthly variation of EWC followed a unimodal curve with the peak in June and July, accounting for 42.16% and 36.28% of annual EWC in 2014 and 2015, respectively. The water balance analysis indicated that the river flow was not sufficient to provide the EWC of natural oases and water requirements of agriculture and social economy, and additional 1.23 x 10(8 )m(3) and 2.09 x 10(8) m(3) of groundwater needed to be exploited in 2014 and 2015, respectively. Several strategies for sustainable water resources allocation and ecosystem management in the study area were provided. Overall, this study provides an integrated approach with combinations of multiple techniques and high-resolution data for EWC calculation, which is useful for water footprint analysis and water resources management on the basin scale in arid areas. (C) 2018 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[91425301] ; National Natural Science Foundation of China[91625101] ; National Natural Science Foundation of China[91325201] ; China Postdoctoral Science Foundation ; Chinese Academy Sciences Joint Foundation for Excellent Postdoctoral Fellows[2015LH0038] ; Youth Innovation Promotion Association CAS[2016040]
WOS关键词	BALANCE SYSTEM SEBS ; DESERT RIPARIAN VEGETATION ; LAND-SURFACE TEMPERATURE ; HEIHE RIVER-BASIN ; ENERGY-BALANCE ; NORTHWEST CHINA ; EVAPOTRANSPIRATION ; ALGORITHM ; CLIMATE ; MODEL
WOS研究方向	Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000430772400001
资助机构	National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Chinese Academy Sciences Joint Foundation for Excellent Postdoctoral Fellows ; Youth Innovation Promotion Association CAS
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/55063]
专题	中国科学院地理科学与资源研究所
通讯作者	Fu, Bojie
作者单位	1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China 2.Joint Ctr Global Change Studies, Beijing 100875, Peoples R China 3.Beijing Forestry Univ, State Forestry Adm Key Lab Forest Resources & Env, Beijing 100083, Peoples R China 4.Xian Univ Sci & Technol, Coll Geomat, Xian 710054, Shaanxi, Peoples R China 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 6.Northwest Univ, Coll Urban & Environm Sci, Xian 710027, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Gao, Guangyao,Shen, Qin,Zhang, Yan,et al. Determining spatio-temporal variations of ecological water consumption by natural oases for sustainable water resources allocation in a hyper-arid endorheic basin[J]. JOURNAL OF CLEANER PRODUCTION,2018,185:1-13.
APA	Gao, Guangyao.,Shen, Qin.,Zhang, Yan.,Pan, Naiqing.,Ma, Ying.,...&Fu, Bojie.(2018).Determining spatio-temporal variations of ecological water consumption by natural oases for sustainable water resources allocation in a hyper-arid endorheic basin.JOURNAL OF CLEANER PRODUCTION,185,1-13.
MLA	Gao, Guangyao,et al."Determining spatio-temporal variations of ecological water consumption by natural oases for sustainable water resources allocation in a hyper-arid endorheic basin".JOURNAL OF CLEANER PRODUCTION 185(2018):1-13.