干旱区生态环境知识资源中心(Arid): Ecological Water Demand Estimations for Desert Terminal Lake Survival under Inland River Water Diversion Regulation

Arid

DOI	10.3390/w15010066
	Ecological Water Demand Estimations for Desert Terminal Lake Survival under Inland River Water Diversion Regulation
	Lu, Jinqiang; Li, Lingqi; Jiang, Enhui; Gan, Rong; Liu, Chang; Deng, Ya
通讯作者	Li, LQ
来源期刊	WATER
EISSN	2073-4441
出版年	2023
卷号	15 期号:1
英文摘要	Desert terminal lakes are important signals to discern ecological degradation crises, particularly in arid areas where an artificial project of ecological water diversion has designated a quota of river water to prevent lake body shrinkage and protect the ecosystem. Knowledge of the minimum ecological water demand (EWD) is thus necessary to ensure the basic health of lake ecosystems. This study analyzed the spatiotemporal evolution of water boundaries using Landsat satellites data via remote sensing technology from 2002 to 2017 in East Juyan Lake, an inland desert terminal lake of the Heihe River in northwest China. The minimum lake water demand was determined using two estimation methods: the lake-evaporation-oriented EWD method and the minimum water level method. In the latter method, both lake topography (using water-level area curves) and biological survival demands (using bighead carps as indicators) were considered to derive the minimum lake EWD. Water diversion to the lake over the past 15 years has increased the lake's area, but there are still marked intra-annual seasonal variations. The annual minimum lake water demand was suggested to be 54 x 10(6) m(3)/year by comparing the different methods; however, it was not satisfied, and the lake survival was endangered when the occurrence frequency of the annual runoff in the Zhengyixia hydrological station exceeded 65%. This study offered promising directions for inland lake water resource management.
英文关键词	lake area water diversion ecological water demand (EWD) minimum water level inland river
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000909266100001
WOS关键词	CLIMATE-CHANGE ; AREA ; SURFACE ; BASIN
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398971
推荐引用方式 GB/T 7714	Lu, Jinqiang,Li, Lingqi,Jiang, Enhui,et al. Ecological Water Demand Estimations for Desert Terminal Lake Survival under Inland River Water Diversion Regulation[J],2023,15(1).
APA	Lu, Jinqiang,Li, Lingqi,Jiang, Enhui,Gan, Rong,Liu, Chang,&Deng, Ya.(2023).Ecological Water Demand Estimations for Desert Terminal Lake Survival under Inland River Water Diversion Regulation.WATER,15(1).
MLA	Lu, Jinqiang,et al."Ecological Water Demand Estimations for Desert Terminal Lake Survival under Inland River Water Diversion Regulation".WATER 15.1(2023).