气候变化领域集成服务门户(CCPortal): Using the concept of ecological groundwater level to evaluate shallow groundwater resources in hyperarid desert regions

CCPortal

DOI	10.3724/SP.J.1227.2012.00378
	Using the concept of ecological groundwater level to evaluate shallow groundwater resources in hyperarid desert regions
	Feng, Qi; Peng, JiaZhong; Li, JianGuo; Xi, HaiYang; Si, JianHua
发表日期	2012
ISSN	1674-6767
EISSN	2194-7783
卷号	4 期号:4
英文摘要	This paper, based on the analysis and calculation of the groundwater resources in an arid region from 1980 to 2001, put forward the concept of ecological groundwater level threshold for either salinity control or the determination of ecological warning. The surveys suggest that soil moisture and soil salinity are the most important environmental factors in determining the distribution and changes in vegetation. The groundwater level threshold of ecological warning can be determined by using a network of groundwater depth observation sites that monitor the environmental moisture gradient as reflected by plant physiological characteristics. According to long-term field observations within the Ejin oases, the groundwater level threshold for salinity control varied between 0.5 m and 1.5 m, and the ecological warning threshold varied between 3.5 m and 4.0 m. The quantity of groundwater resources (renewable water resources, ecological water resources, and exploitable water resources) in arid areas can be calculated from regional groundwater level information, without localized hydrogeological data. The concept of groundwater level threshold of ecological warning was established according to water development and water resources supply, and available groundwater resources were calculated. The concept not only enriches and broadens the content of groundwater studies, but also helps in predicting the prospects for water resources development.
关键词	evaluation water resources Ejin oasis ecological groundwater level groundwater level threshold of ecological warning
学科领域	Environmental Sciences & Ecology
语种	英语
WOS研究方向	Environmental Sciences
来源期刊	JOURNAL OF ARID LAND
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/111667
作者单位	Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Alashan Desert Ecohydrol Expt Res Stn, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Feng, Qi,Peng, JiaZhong,Li, JianGuo,et al. Using the concept of ecological groundwater level to evaluate shallow groundwater resources in hyperarid desert regions[J]. 中国科学院西北生态环境资源研究院,2012,4(4).
APA	Feng, Qi,Peng, JiaZhong,Li, JianGuo,Xi, HaiYang,&Si, JianHua.(2012).Using the concept of ecological groundwater level to evaluate shallow groundwater resources in hyperarid desert regions.JOURNAL OF ARID LAND,4(4).
MLA	Feng, Qi,et al."Using the concept of ecological groundwater level to evaluate shallow groundwater resources in hyperarid desert regions".JOURNAL OF ARID LAND 4.4(2012).