摘要
白浮泉作为大运河文化带的源头,在20世纪70年代末期已经断流。复涌白浮泉是成功建设大运河文化带的标志之一,而查明白浮泉补径排条件是实现白浮泉复涌的关键。在已有研究基础上,通过水文地质条件初步判断白浮泉补径排条件,再通过地下水采样分析,从水化学同位素角度进一步确定白浮泉域的补径排路径。水化学分析结果证实:白浮泉东北部兴寿山区和北部十三陵-长陵山区均为补给区,水化学特征极为相似,水质差异不大,均为HCO_(3)-Ca型水;径流区位于邓庄和崔村一带,水化学类型仍为HCO_(3)-Ca型;排泄区位于化庄地区,水化学类型为HCO.SO-Ca·Mg型。地下水中离子含量的升高主要来源于方解石、岩盐和少量石膏的溶解。同位素分析结果显示,地下水中D、^(18)O关系线从补给区到白浮泉地区逐渐偏离大气降水线,验证了水化学分析得出的认识。
Baifu spring was dried up in the late 1970s.In order to build grand canal cultural belt,the key to realize the reflow of Baifu spring is to find out the recharge,runoff and discharge of it.This paper further confirmed the recharge path of Baifu spring according to hydrochemical and isotopic analysis based on the collection of existing data and the sampling analysis.The hydrochemistry analysis results show that both northeast Xingshou and north Ming tombs are located in recharge area while Dengzhuang and Cuicun are located in run-off area,and hydrochemical types of the above area are HCO_(3)-Ca.In addition,Huazhuang is located in the discharge area,and its hydrochemical type is HCO·SO-Ca·Mg.The rise of ions content in the groundwater are mainly caused by the dissolution of calcite,halite,and a small amount of gypsum.The isotopic analysis results show that the relationship of D and ^(18)O in the groundwater gradually deviate from the LMWL from the recharge area to Baifu spring,which further demonstrate the hydrochemistry analysis results.
作者
罗丹
杨勇
邢国章
LUO Dan;YANG Yong;XING Guozhang(China University of Geosciences,Beijing 100083,China;Beijing Water Science&Technology Institute,Beijing 100048,China)
出处
《水文》
CSCD
北大核心
2021年第6期13-17,90,共6页
Journal of China Hydrology
基金
国家重点研发计划资助项目(2016YFC0401404)。
关键词
白浮泉
补径排条件
水化学
同位素
Baifu spring
groundwater recharge,runoff and discharge
hydrochemistry
isotope
