自然资源学报 ›› 2020, Vol. 35 ›› Issue (6): 1314-1325.doi: 10.31497/zrzyxb.20200605

• “冀西北水资源与生态环境”专栏 • 上一篇    下一篇

京津冀西北典型流域地下水化学特征及补给源分析

张清华1, 赵玉峰1, 2, 唐家良3, 陆文3, 罗专溪1   

  1. 1. 中国科学院城市环境研究所城市环境与健康重点实验室,厦门 361021;
    2. 山西师范大学地理科学学院,临汾 041000;
    3. 中国科学院水利部成都山地灾害与环境研究所,成都 610041
  • 收稿日期:2019-07-05 修回日期:2020-03-26 出版日期:2020-06-28 发布日期:2020-06-28
  • 通讯作者: 罗专溪(1979-), 男, 福建泉州人, 博士, 副研究员, 研究方向为城市水污染过程与控制。E-mail:zxluo@iue.ac.cn
  • 作者简介:张清华(1990-), 男, 广西合浦人, 硕士, 研究方向为环境地球化学。E-mail:tsinghua_cags@163.com
  • 基金资助:
    水体污染控制与治理科技重大专项(2017ZX07101001-02)

Hydrochemistry characteristics and the recharge source of groundwater in typical watersheds of Beijing-Tianjin-Hebei region, China

ZHANG Qing-hua1, ZHAO Yu-feng1, 2, TANG Jia-liang3, LU Wen3, LUO Zhuan-xi1   

  1. 1. Key Laboratory of Urban Environment and Health, Institute of Urban Environment, CAS, Xiamen 361021, Fujian, China;
    2. School of Geographical Science, Shanxi Normal University, Linfen 041000, Shanxi, China;
    3. Institute of Mountain Hazards and Environment, CAS, Chengdu 610041, China
  • Received:2019-07-05 Revised:2020-03-26 Online:2020-06-28 Published:2020-06-28

摘要: 为揭示京津冀西北典型流域地下水循环特征,运用环境同位素和水化学技术等方法分析张家口市不同流域水体氢氧同位素特征、水化学特征及时空变化特征、地表地下水转化关系。结果表明:地表水化学类型主要为HCO3-Mg·Na和HCO3·Cl-Na型;地下水化学类型不同时期表现出不同的类型,水化学类型更为多样,主要以HCO3-Mg·Na型、HCO3·Cl-Na型、HCO3·Cl-Na·Mg为主。地表河水和地下水中离子均主要来源于岩石风化作用;张北和桑干河流域地下水中离子偏向于蒸发浓缩作用控制。张家口市各流域地表地下水δ18O、δD组成较为接近,表明了当地地表水和地下水均受到大气降水的补给。大气降水和地表河水对地下水的补给比例均值分别为37.74%和62.26%,以地表河水的补给为主要方式。

关键词: 张家口, 氢氧同位素, 水循环, 离子来源, 地下水

Abstract: To reveal the characteristics of groundwater circulation in typical watersheds of the northwestern Beijing-Tianjin-Hebei region, this paper used environmental isotopes and hydrochemical techniques to analyze the characteristics of hydrogen and oxygen isotopes, hydrochemical characteristics and spatio-temporal changes, as well as the relationship between surface water and groundwater transformation in different watersheds of the Zhangjiakou region. Results showed that the surface water in the region was mainly HCO3-Mg·Na and HCO3·Cl-Na type, while in different seasons the water types of the groundwater were not the same. Specifically, the groundwater types were more diverse with HCO3-Mg·Na, HCO3·Cl-Na, HCO3·Cl-Na·Mg types. An ion source analysis indicates that the surface water and groundwater were mainly affected by rock weathering. Parts of the groundwater in Zhangjiakou were affected by evaporation concentration. The hydrogen and oxygen isotopic compositions of surface water and groundwater were similar, indicating that the water was mainly from the atmospheric precipitation. Based on stable isotopic characteristics, 37.74% of the groundwater in the study region was derived from precipitation, while the remaining 62.26% was from river water, suggesting that the basin groundwater is mainly recharged from the river water.

Key words: ion source, Zhangjiakou, hydrogen and oxygen isotopes, water cycle, groundwater