气候变化领域集成服务门户(CCPortal): Identifying the origin of groundwater for water resources sustainable management in an arid oasis, China

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DOI	10.1080/02626667.2019.1619080
	Identifying the origin of groundwater for water resources sustainable management in an arid oasis, China
	Guo, Xiaoyan; Feng, Qi; Si, Jianhua; Wei, Yongping; Bao, Ting; Xi, Haiyang; Li, Zongxing
发表日期	2019
ISSN	0262-6667
EISSN	2150-3435
卷号	64 期号:10
英文摘要	Many oases are experiencing severe groundwater depletion due to increased population, expanding agriculture and economic development. For sustainable development, quantifying groundwater recharge resources are fundamentally important. In this study, stable isotope techniques were employed to identify recharge sources of groundwater and quantitatively evaluate their contribution ratios in the Dunhuang Oasis, northwest China. Our findings indicate that heavy isotopes in shallow groundwater are more negative than those in deep groundwater, which is attributed to shallow groundwater that was modern and deep groundwater that was old. Irrigated return water and lateral groundwater flow from the Qilian Mountains are considered as the two main sources of shallow groundwater, accounting for 35% and 65% of the total recharge, respectively. Thus, as the main groundwater source of the Dunhuang Oasis, the Qilian Mountain Front should be protected against over-exploitation. Our results provide not only fundamental knowledge for groundwater management of aquifers of the Oasis, but also valuable water management information for other similar arid oases worldwide.
关键词	groundwater oasis recharge sources stable isotope water resources management
学科领域	Water Resources
语种	英语
WOS研究方向	Water Resources
来源期刊	HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES
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/112080
作者单位	Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Donggang West Rd 320, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Guo, Xiaoyan,Feng, Qi,Si, Jianhua,et al. Identifying the origin of groundwater for water resources sustainable management in an arid oasis, China[J]. 中国科学院西北生态环境资源研究院,2019,64(10).
APA	Guo, Xiaoyan.,Feng, Qi.,Si, Jianhua.,Wei, Yongping.,Bao, Ting.,...&Li, Zongxing.(2019).Identifying the origin of groundwater for water resources sustainable management in an arid oasis, China.HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES,64(10).
MLA	Guo, Xiaoyan,et al."Identifying the origin of groundwater for water resources sustainable management in an arid oasis, China".HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES 64.10(2019).