摘要
利用多年观测资料,结合地下水补、径、排条件,分析娘子关岩溶地下水动态变化特征及成因。结果表明:(1)娘子关泉群流量在1980-2004年前总体表现为下降状态,2004年之后趋于稳定并略有回升;(2)岩溶地下水位动态空间上表现为地下水补给区比径流区变化大,时间上则分为两个不同时间段:1980-2004年表现为持续下降状态,2005-2014年表现为波动缓慢下降,部分地区水位小幅回升;龙庄岩溶地下水1998年1月到2004年1月水位下降22.9 m,平均年变幅3.82 m,2005年5月到2014年5月水位升高1.5 m,年均变化-0.17 m。
The Niangziguan spring is one of the largest karst springs in north China.Its clusters are exposed in the Niangziguan town,Pingding county,Yangquan City,Shanxi,with an average annual discharge of 9.81m3∙s-1 and catch⁃ment area about 7,435.8 km2.This spring is the most important water supply source of Yangquan City,which plays an irreplaceable support in urban life and industrial and agricultural production and construction.Under the background of climate change and the increasing intensity of human activities,it is facing some challenging problems,such as the decline of spring flow,water pollution and the continuous decline of karst groundwater level.To further address this is⁃sue,based on variation monitoring data of many years,combined with the conditions of groundwater recharge,runoff and drainage,this paper analyzes the characteristics and causes of dynamic changes of karst groundwater in this area.The results show that,(1)overall the water flow declined from 1980 to 2004,then tended to be stable and slightly re⁃covered after 2004;(2)The spatial variation of the groundwater recharge area is larger than that of the runoff area.The variation in time is divided into two stages:1980-2004 and 2005-2014.In the first stage,the water level showed a con⁃tinuous decline trend,while in the second stage it experienced a slow decline wit fluctuations and small rise at local places.From January 1998 to January 2004,the karst groundwater level in Longzhuang decreased by 22.9 meters,with an average annual variation of 3.82 m.From May 2005 to May 2014,it increased by 1.5 meters with average annual change-0.17 m.
作者
唐春雷
晋华
梁永平
赵春红
申豪勇
潘尧云
景泽
TANG Chunlei;JIN Hua;LIANG Yongping;ZHAO Chunhong;SHEN Haoyong;PAN Yaoyun;JING Ze(Taiyuan University of Technology,Taiyuan,Shanxi 030024,China;Institute of Karst Geology,CAGS/Key Laboratory of Karst Dynamics,MNR&GZAR,Guilin,Guangxi 541004,China;International Research Center on Karst under the Auspices of United Nations Educational,Scientific and Cultural Organization,Guilin,Guangxi 541004,China;The second Geological Engineering Survey Institute of Shanxi Province,Houma,Shanxi 043000,China;Institute of Geological Survey of Shanxi Province,Taiyuan,Shanxi 030006,China)
出处
《中国岩溶》
CAS
CSCD
北大核心
2020年第6期810-816,共7页
Carsologica Sinica
基金
国家自然科学基金项目(41672253)
阳泉市政府财政项目(SXZK-20190602-F03-01)
中国地质科学院基本科研项目(2020010)。
关键词
娘子关泉域
地下水位
时空变化
动态监测
成因
Niangziguan spring
groundwater level
spatial-temporal variation
variation monitoring
cause of change
