干旱区生态环境知识资源中心(Arid): Evaluation of the Groundwater Ecological Water Requirement in the Southeast Margin of Otindag Sandy Land Based on Allowable Groundwater Depth Drawdown

Arid

DOI	10.3390/w15193504
	Evaluation of the Groundwater Ecological Water Requirement in the Southeast Margin of Otindag Sandy Land Based on Allowable Groundwater Depth Drawdown
	Zhang, Gaoqiang; Cheng, Yutong; Liu, Haodong; Xiao, Chunlei; Nie, Hongfeng; Zhu, Zhenzhou; Zhao, Dan; Zan, Yourang
通讯作者	Zhu, ZZ
来源期刊	WATER
EISSN	2073-4441
出版年	2023
卷号	15 期号:19
英文摘要	Water resources in arid and semi-arid areas are limiting factors for ecosystem health and economic development. Therefore, an accurate and reasonable assessment of ecological water demand is crucial for efficient water resource utilization. In this study, we used vegetation coverage and groundwater depth to assess the state of vegetation growth in the Zhenglanqi, located at the southeastern edge of Otindag Sandy Land. Our results indicate the existence of a statistical power index function between vegetation coverage and groundwater depth scatter plots, where even minor changes in groundwater depth can have a significant impact on vegetation growth. In order to quantitatively assess the impact of subsidence on vegetation ecology, we propose a maximum allowable subsidence level under conditions that maintain normal ecological conditions, based on the initial subsidence depth and ecological guarantee rate. Our findings suggest that regions with shallower initial groundwater depths are more sensitive to changes in their environment than regions with deeper groundwater depths. The total groundwater consumption in the study area was 83 million cubic meters while maintaining an ecological guarantee rate of 80%; thus, while ensuring normal environmental conditions, human exploitation of shallow groundwater accounts for only 16 percent.
英文关键词	ecological constraint groundwater resources allow for groundwater drawdown ecological water demand Otindag Sandy Land
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:001081806100001
WOS关键词	DEPENDENT ECOSYSTEMS ; VEGETATION ; RIVER ; EVAPOTRANSPIRATION ; FLUCTUATIONS ; PATTERNS ; VALLEY ; 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/2XILL650/399076
推荐引用方式 GB/T 7714	Zhang, Gaoqiang,Cheng, Yutong,Liu, Haodong,et al. Evaluation of the Groundwater Ecological Water Requirement in the Southeast Margin of Otindag Sandy Land Based on Allowable Groundwater Depth Drawdown[J],2023,15(19).
APA	Zhang, Gaoqiang.,Cheng, Yutong.,Liu, Haodong.,Xiao, Chunlei.,Nie, Hongfeng.,...&Zan, Yourang.(2023).Evaluation of the Groundwater Ecological Water Requirement in the Southeast Margin of Otindag Sandy Land Based on Allowable Groundwater Depth Drawdown.WATER,15(19).
MLA	Zhang, Gaoqiang,et al."Evaluation of the Groundwater Ecological Water Requirement in the Southeast Margin of Otindag Sandy Land Based on Allowable Groundwater Depth Drawdown".WATER 15.19(2023).