干旱区生态环境知识资源中心(Arid): Modeling oasis dynamics driven by ecological water diversion and implications for oasis restoration in arid endorheic basins

Arid

DOI	10.1016/j.jhydrol.2020.125774
	Modeling oasis dynamics driven by ecological water diversion and implications for oasis restoration in arid endorheic basins
	Huang, Feng; Ochoa, Carlos G.; Chen, Xi; Zhang, Danrong
通讯作者	Huang, F (corresponding author), Hohai Univ, Coll Hydrol & Water Resources, Nanjing 210098, Peoples R China.
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2021
卷号	593
英文摘要	To achieve sustainable development, ecological water diversion has been implemented as a management tool to recover degraded oasis ecosystems in arid endorheic basins. Aiming to explore oasis response and identify appropriate objectives for oasis restoration, this study used a conceptual lumped ecohydrological model. Qingtu Oasis in the Shiyang River basin, Northwest China, was used as a case study to test this model. The model coupled groundwater budget, oasis response, and evapotranspiration dynamic modules. The model structure was clear and reasonable, and the calculation was of low cost. The application in Qingtu Oasis verified the model's effectiveness. The model was able to effectively capture the ecohydrological response attributed to the recovering of Qingtu Oasis in response to ecological water diversions occurring during the last decade. Combined with scenario analysis, the simulation indicated that Qingtu Oasis was fragile and largely dependent on ecological water diversion. Ecological responses were positive and non-linearly correlated with water input, resulting in an optimal water input that produced maximum water benefit by minimum water consumption. The ideal point method was useful in identifying this cost-effective water volume for oasis restoration. For Qingtu Oasis, the optimal water diversion was 45 million m(3), which would recover the oasis to 29.16 km(2) with an NDVI of 0.41. The current oasis conditions approach the optimal status, and ecological water diversion was suggested to continue and maintain the current oasis status. The volume of 45 million m(3) could be taken as an upper threshold of water diversion, because above this threshold, water consumption would not result in water benefits effectively. This study proposed a practical tool for ecohydrological process simulation.
英文关键词	Conceptual lumped ecohydrological model Ecohydrological dynamics Ecological water diversion Oasis restoration Shiyang River Arid endorheic basins
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000639853400018
WOS关键词	SHIYANG RIVER-BASIN ; LOWER TARIM RIVER ; LOWER REACHES ; INLAND RIVER ; VEGETATION ; NORTHWEST ; CONVEYANCE ; STREAMFLOW ; UNCERTAINTY ; RESPONSES
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
来源机构	河海大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350878
作者单位	[Huang, Feng; Chen, Xi; Zhang, Danrong] Hohai Univ, Coll Hydrol & Water Resources, Nanjing 210098, Peoples R China; [Huang, Feng; Ochoa, Carlos G.] Oregon State Univ, Coll Agr Sci, Ecohydrol Lab, Corvallis, OR 97331 USA; [Chen, Xi] Tianjin Univ, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China
推荐引用方式 GB/T 7714	Huang, Feng,Ochoa, Carlos G.,Chen, Xi,et al. Modeling oasis dynamics driven by ecological water diversion and implications for oasis restoration in arid endorheic basins[J]. 河海大学,2021,593.
APA	Huang, Feng,Ochoa, Carlos G.,Chen, Xi,&Zhang, Danrong.(2021).Modeling oasis dynamics driven by ecological water diversion and implications for oasis restoration in arid endorheic basins.JOURNAL OF HYDROLOGY,593.
MLA	Huang, Feng,et al."Modeling oasis dynamics driven by ecological water diversion and implications for oasis restoration in arid endorheic basins".JOURNAL OF HYDROLOGY 593(2021).