气候变化领域集成服务门户(CCPortal): Runoff controls the development of eco-hydrological and economic conditions in an arid oasis of the downstream inland river basin

CCPortal

DOI	10.1080/15324982.2022.2032869
	Runoff controls the development of eco-hydrological and economic conditions in an arid oasis of the downstream inland river basin
	Wang, Chuan; Zhao, Wenzhi; Zhang, Yongyong
通讯作者	Zhao, WZ ; Zhang, YY (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Linze Inland River Basin Res Stn,Chinese Ecosyst, Lanzhou 730000, Peoples R China.
发表日期	2020
ISSN	1532-4982
EISSN	1532-4990
英文摘要	Oasis degradation and terminal lake shrinkage are prevalent consequences of the disputed distribution of water resources in inland river basins, hindering regional sustainable development. The Ecological Water Diversion Project (EWDP) is regarded as an important measure to restore the desert-oasis ecosystem in inland river basins, and thus it is essential to comprehensively evaluate the response of eco-hydrological and socioeconomic systems to the EWDP. Based on multiple indicators, we used trend analysis, linear regression, partial least square regression, and structural equation model to disentangle the quantitative effects of the EWDP on the change of eco-hydrological and socioeconomic conditions in the Ejina Oasis (EO) in the lower reaches of the Heihe River in northwest China. Our results indicate that the ecological deterioration was prevalent before the execution of the EWDP, including the increase of groundwater depth, the disappearance of lakes, the decrease of NDVI. After the EWDP, runoff released to EO increased 69.15%, the mean groundwater depth decreased 0.48 m, 52.28% of the study area showed a significant increase in NDVI, areas of forest and grassland increased 20.17 and 25.65 km(2), respectively. The EWDP improved the hydrological regime and prompted the recovery of the oasis. Besides, socioeconomic development was facilitated under the restoration of the eco-hydrological conditions, characterized by the expansion of farmland and the thrive of the tourism industry. The hydrological variables promoted the improvement of the ecological condition with a direct strength of 0.93 and facilitated the development of the socioeconomic conditions in EO with an indirect strength of 0.84. Runoff was the most important positive contributor both to the NDVI and GDP in EO. This comprehensive evaluation framework can offer valuable insight for water resources management and sustainable development in the inland river basin of arid areas.
关键词	HEIHE RIVER EJINA OASIS VEGETATION COVER WATER-RESOURCES NORTHWEST CHINA HEXI CORRIDOR REGRESSION EVAPOTRANSPIRATION DESERTIFICATION RESTORATION
英文关键词	Ecological water diversion project; eco-hydrological response; Heihe River; oasis ecosystem degradation and restoration; socioeconomic response
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
WOS类目	Environmental Sciences ; Soil Science
WOS记录号	WOS:000754447900001
来源期刊	ARID LAND RESEARCH AND MANAGEMENT
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253737
作者单位	[Wang, Chuan; Zhao, Wenzhi; Zhang, Yongyong] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Linze Inland River Basin Res Stn,Chinese Ecosyst, Lanzhou 730000, Peoples R China; [Wang, Chuan] Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wang, Chuan,Zhao, Wenzhi,Zhang, Yongyong. Runoff controls the development of eco-hydrological and economic conditions in an arid oasis of the downstream inland river basin[J]. 中国科学院西北生态环境资源研究院,2020.
APA	Wang, Chuan,Zhao, Wenzhi,&Zhang, Yongyong.(2020).Runoff controls the development of eco-hydrological and economic conditions in an arid oasis of the downstream inland river basin.ARID LAND RESEARCH AND MANAGEMENT.
MLA	Wang, Chuan,et al."Runoff controls the development of eco-hydrological and economic conditions in an arid oasis of the downstream inland river basin".ARID LAND RESEARCH AND MANAGEMENT (2020).