Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s10040-010-0650-9 |
Identifying the recharge sources and age of groundwater in the Songnen Plain (Northeast China) using environmental isotopes | |
Chen, Zongyu; Wei, Wen; Liu, Jun; Wang, Ying; Chen, Jiang | |
通讯作者 | Chen, Zongyu |
来源期刊 | HYDROGEOLOGY JOURNAL
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ISSN | 1431-2174 |
出版年 | 2011 |
卷号 | 19期号:1页码:163-176 |
英文摘要 | The recharge sources and groundwater age in the Songnen Plain, Northeast China, were confirmed using environmental isotopes. The isotopic signatures of the unconfined aquifers in the southeast elevated plain and the north and west piedmont, cluster along local meteoric water lines (LMWLs) with a slope of about 5. The signature of source water was obtained by the intersection of these LMWLs with the regional meteoric water line (RMWL). This finding provides evidence that the recharge water for these areas originate from the Changbai Mountains and the Low and High Hingan Mountains, respectively. Groundwater in the unconfined aquifer in the low plain yields a LMWL with a slope of 4.4; its nitrate concentration indicates the admixture of irrigation return flow. The delta-values of the unconfined aquifer in the east elevated plain plot along the RMWL, reflecting recharge by local precipitation. The mean residence time of groundwater in these aquifers is less than 50 years. However, the (14)C age of the groundwater in the confined Quaternary aquifer ranges from modern to 19,500 years, and in the Tertiary confined aquifer from 3,100 to 24,900 years. Modern groundwater is mainly recharged to the Quaternary confined aquifer on the piedmont by local precipitation and lateral subsurface flow. |
英文关键词 | Semi-arid region Stable isotopes Radioactive isotopes Recharge sources China |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000286209700014 |
WOS类目 | Geosciences, Multidisciplinary ; Water Resources |
WOS研究方向 | Geology ; Water Resources |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/168403 |
作者单位 | Chinese Acad Geol Sci, Inst Hydrogeol & Environm Geol, Zhengding 050803, Hebei, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Zongyu,Wei, Wen,Liu, Jun,et al. Identifying the recharge sources and age of groundwater in the Songnen Plain (Northeast China) using environmental isotopes[J],2011,19(1):163-176. |
APA | Chen, Zongyu,Wei, Wen,Liu, Jun,Wang, Ying,&Chen, Jiang.(2011).Identifying the recharge sources and age of groundwater in the Songnen Plain (Northeast China) using environmental isotopes.HYDROGEOLOGY JOURNAL,19(1),163-176. |
MLA | Chen, Zongyu,et al."Identifying the recharge sources and age of groundwater in the Songnen Plain (Northeast China) using environmental isotopes".HYDROGEOLOGY JOURNAL 19.1(2011):163-176. |
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