Characteristics of groundwater in Northeast Qinghai-Tibet Plateau and its response to climate change and human activities:A case study of Delingha,Qaidam Basin

作     者：Wei Zhao Yan-zhu Lin Peng-peng Zhou Guang-cai Wang Xue-ya Dang Xiao-fan Gu Wei Zhao;Yan-zhu Lin;Peng-peng Zhou;Guang-cai Wang;Xue-ya Dang;Xiao-fan Gu

作者机构：China Institute of Geo-Environment MonitoringChina Geological SurveyBeijing 100081China State Key Laboratory of Biogeology and Environmental Geology and MOE Key Laboratory of Groundwater Circulation and Environmental EvolutionSchool of Water Resources and EnvironmentChina University of Geosciences(Beijing)Beijing 100083China Xi’an CenterChina Geological SurveyXi’an 710054China 

出 版 物：《China Geology》 (中国地质（英文）)

年 卷 期：2021年第4卷第3期

页      面：377-388页

学科分类：081803[工学-地质工程] 07[理学] 070601[理学-气象学] 08[工学] 0818[工学-地质资源与地质工程] 0706[理学-大气科学] 

基　　金：This work was supported by the National Natural Science Foundation of China(41672243) the China Geological Survey Program(DD20160291,DD20189270) 

主　　题：Groundwater Global climate change Hydrochemistry Groundwater circulation Groundwater age Groundwater level rising Geological survey engineering Qaidam Basin Delingha Qinghai-Tibet Plateau 

摘      要：Delingha is located in the northeast margin of Qaidam *** River alluvial proluvial fan is the main aquifer of Delingha,in which groundwater generally flows from north to *** hydrochemistry results showed that two different hydrochemical evolution paths formed along southeast and southwest directions,***-Na type groundwater was formed in front of Gahai Lake,and SO_(4)·HCO_(3)-Na·Ca type groundwater was formed in front of Keluke *** results of deuterium(D)and 18O revealed that the groundwater mainly originated from the continuous accumulation of precipitation during geological history under cold and humid climate *** addition,results of ^(14)C indicated that the groundwater age was more than 1140 years,implying relatively poor renewal capability of regional ***,our numerical modeling results showed that the regional groundwater level will continue to rise under the warm and humid climate conditions.