Arid
DOI10.1002/clen.201500718
Isotopic Implications for Vapor-Liquid Infiltration Pattern in the Desert Area of Ordos Plateau, China
Ma, Hongyun1; Yang, Qingchun2; Yin, Lihe1; Huang, Jinting1; Zhang, Jun1; Wang, Xiaoyong1; Li, Chengzhu1
通讯作者Yang, Qingchun
来源期刊CLEAN-SOIL AIR WATER
ISSN1863-0650
EISSN1863-0669
出版年2017
卷号45期号:5
英文摘要

Precipitation infiltration is the unique recharge source of groundwater in most arid areas. In this paper, we focus on the desert area of the Ordos Plateau by assessing the capability of water stable isotope analysis (delta D-delta O-18) to refine the understanding of groundwater recharge mechanism. In situ profile monitoring of temperature, moisture content, and isotopic sampling in unsaturated and saturated zones was conducted at the Bulanghe station located in the middle of the Ordos Plateau to identify the detailed infiltration process. It was found that the capillary zone has the most depleted heavy O and H isotopes in the profile. The analysis of delta D-delta O-18 relationships of local precipitation explains the isotopic variability and indicates the following processes: (1) Liquid water evaporated at hotter layer near the surface; 2) Part of vapor moves downward and condensates at the deeper layer where it becomes cooler. The isotopic fractionation that occurs in this process makes the condensation zone the most depleted heavy O and H isotopes zone. Temperature and moisture content in the profile also supported the capillary zone as vapor moves downward. The isotopic evidence indicates that, except for direct infiltration, the newly found secondary infiltration pattern, vapor-liquid flow, makes it possible that the low intensity precipitation event contributes to groundwater recharge. The results from this study may provide useful insights into the identification of infiltration mechanism in arid areas in the world.


英文关键词Arid areas Downward moving vapor Groundwater recharge Infiltration mechanisms Water stable isotope
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000403007400009
WOS关键词WATER-VAPOR ; EVAPORATION ; SOIL ; MECHANISMS ; DIFFUSION ; MODELS ; FLOW
WOS类目Green & Sustainable Science & Technology ; Environmental Sciences ; Marine & Freshwater Biology ; Water Resources
WOS研究方向Science & Technology - Other Topics ; Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/198123
作者单位1.CGS, Xian Ctr Geol Survey, Key Lab Groundwater & Ecol Arid & Semiarid Areas, Xian, Peoples R China;
2.Jilin Univ, Key Lab Groundwater Resources & Environm, Minist Educ, Changchun 130021, Peoples R China
推荐引用方式
GB/T 7714
Ma, Hongyun,Yang, Qingchun,Yin, Lihe,et al. Isotopic Implications for Vapor-Liquid Infiltration Pattern in the Desert Area of Ordos Plateau, China[J],2017,45(5).
APA Ma, Hongyun.,Yang, Qingchun.,Yin, Lihe.,Huang, Jinting.,Zhang, Jun.,...&Li, Chengzhu.(2017).Isotopic Implications for Vapor-Liquid Infiltration Pattern in the Desert Area of Ordos Plateau, China.CLEAN-SOIL AIR WATER,45(5).
MLA Ma, Hongyun,et al."Isotopic Implications for Vapor-Liquid Infiltration Pattern in the Desert Area of Ordos Plateau, China".CLEAN-SOIL AIR WATER 45.5(2017).
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