基于水化学和同位素的白浮泉补径排条件分析
Study on groundwaterSrecharge,SrunoffSandSdischarge of Baifu spring based on the isotope and hydrochemistry analysis
投稿时间:2020-09-18  修订日期:2020-09-18
DOI:
中文关键词:  白浮泉  补径排条件  水化学  同位素
英文关键词:Baifu spring  groundwater recharge,runoff and discharge  hydrochemistry  isotope
基金项目:国家重点研发计划(2016YFC0401404)
作者单位邮编
罗丹 中国地质大学北京水资源与环境学院 100083
杨勇 北京市水科学技术研究院 100083
邢国章 北京市地质工程勘察院 
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中文摘要:
      白浮泉复涌是成功建设大运河文化带的标志,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HCO3—Ca型水;径流区位于邓庄和崔村一带,水化学类型仍为HCO3—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、18O关系线从补给区到白浮泉地区逐渐偏离大气降水线,进一步证实了东北部兴寿山区和北部十三陵-长陵山区为白浮泉的补给区,也验证了水化学分析得出的认识。
英文摘要:
      The re-upwelling of Baifu spring is a sign of the construction of the Grand Canal cultural belt,while it is the key to solve this problem to find out the recharge, runoff and discharge of Baifu spring.In this study, based on the collection of existing data, through the sampling analysis, we try to furtherly confirm the recharge path of Baifu spring according to hydrochemical and isotopic analysis.The result of hydrochemical analysis shows that the northeast Xingshou and north Ming tombs in which the chemical composition are nearly identical are in recharge area, with hydrochemical type of HCO3—Ca. The run-off area is located in Dengzhuang and Cuicun, the hydrochemical type is still HCO3—Ca. The discharge area is in Huazhuang, hydrochemical type is HCO.SO—Ca.Mg. The rise of ions content in the groundwater is 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 18O of the groundwater gradually deviate from the LMWL from the recharge area to Baifu spring, furtherly confirming the conclusion of the hydrochemical analysis that Xingshou in the northeast and Ming tombs in the north are the recharge areas of Baifu spring.
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