X img

官方微信

img

群号:冰川冻土交流群

QQ群:218834310

高级检索
作者投稿 专家审稿 编辑办公 编委办公 主编办公

冰川冻土 ›› 2021, Vol. 43 ›› Issue (2): 568-579.doi: 10.7522/j.issn.1000-0240.2021.0034

• 冰冻圈水文与水资源 • 上一篇    下一篇

疏勒河源区水化学特征及其控制因素分析

杨琴1,2(), 韩添丁1(), 李向应3,4, 秦甲1,5, 成鹏6, 蒲红铮7   

  1. 1.中国科学院 西北生态环境资源研究院 冰冻圈科学国家重点实验室,甘肃 兰州 730000
    2.中国科学院大学,北京 100049
    3.西北大学 陕西省地表系统与环境承载力重点实验室,陕西 西安 710127
    4.西北大学 城市与环境学院,陕西 西安 710127
    5.中国科学院 西北生态环境资源研究院 内陆河流域生态水文重点实验室,甘肃 兰州 730000
    6.乌鲁木齐市 气象局,新疆 乌鲁木齐 830002
    7.重庆理工大学 管理学院,重庆 400054
  • 收稿日期:2020-06-05 修回日期:2020-08-26 出版日期:2021-04-30 发布日期:2021-05-18
  • 通讯作者: 韩添丁 E-mail:yangqin@lzb.ac.cn;tdhan@lzb.ac.cn
  • 作者简介:杨琴,硕士研究生,主要从事寒区水文与环境研究. E-mail: yangqin@lzb.ac.cn
  • 基金资助:
    国家重点研发计划政府间国际创新合作专项(2018YFE010010002);科技部科技基础资源调查专项(2018FY100502);国家自然科学基金项目(41771040);中国科学院战略性先导科技专项(XDA19070501);甘肃省科技计划项目(20JR5RA545);冰冻圈科学国家重点实验室开放基金项目(SKLCS-OP-2020-12);重庆理工大学科研启动基金项目资助

Hydrochemical characteristics and controlling factors in the source region of Shule River

Qin YANG1,2(), Tianding HAN1(), Xiangying LI3,4, Jia QIN1,5, Peng CHENG6, Hongzheng PU7   

  1. 1.State Key Laboratory of Cryospheric Science,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    2.University of Chinese Academy of Sciences,Beijing 100049,China
    3.Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity,Northwest University,Xi’an 710127,China
    4.College of Urban and Environmental Sciences,Northwest University,Xi’an 710127,China
    5.Key Laboratory of Ecohydrology of Inland River Basin,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    6.Urumqi Meteorological Bureau,Urumqi 830002,China
    7.School of Management,Chongqing University of Technology,Chongqing 400054,China
  • Received:2020-06-05 Revised:2020-08-26 Online:2021-04-30 Published:2021-05-18
  • Contact: Tianding HAN E-mail:yangqin@lzb.ac.cn;tdhan@lzb.ac.cn

摘要:

以疏勒河源区为研究区,自2018年12月至2019年11月分别采集河水、泉水和雪样样品44个、4个和7个,综合运用Piper三线图、Gibbs图、离子比值法定性分析不同水体水化学特征及控制因素,利用质量平衡法(正向地球化学模型)量化不同来源对不同季节河水水化学成分的贡献率。结果表明:疏勒河源区不同水体水化学特征存在差异,TDS含量为泉水>河水>冰川融水>雪水,河水水化学类型冬季为HCO3--Mg2+?Ca2+型,春季为HCO3--Ca2+?Mg2+?Na+型,夏、秋季均为HCO3--Ca2+?Mg2+型,泉水和雪水分别为HCO3--Ca2+?Mg2+型、HCO3--Ca2+型;受多种因素共同影响,不同季节河水主离子时空变化均存在差异;河水和泉水水化学组成受岩石风化作用控制,主离子来源于以白云石为主的碳酸盐岩风化、硅酸盐岩风化和盐岩、石膏、硫酸盐矿物等蒸发岩溶解;正向地球化学模型计算结果表明冬春季河水阳离子主要来源于硅酸盐岩风化溶解,夏秋季碳酸盐岩对河水阳离子贡献率大于硅酸盐岩,总体河水阳离子主要来源于碳酸盐岩和硅酸盐岩风化。

关键词: 疏勒河源区, 水化学, 控制因素, 贡献率

Abstract:

The source region of Shule River basin was selected as the study area, and the samples of river water, spring water and snow were collected between December in 2018 to November in 2019. Hydrochemical characteristics and controlling factors of different waters were analyzed qualitatively by Gibbs figure, Piper Triangular diagram and the ratio of ions. The contribution of rain (atmospheric), evaporite, carbonate, and silicate weathering in different seasons was quantified by mass budget equations of cations (the forward model). The results showed that the concentration of the total dissolved solids (TDS) was ordered by spring water>river water>glacier meltwater>snow water. Hydrochemical types of river water were HCO3--Mg2+?Ca2+ in winter, HCO3--Ca2+?Mg2+?Na+ in spring and HCO3--Ca2+?Mg2+ in summer and autumn. Hydrochemical types of spring water and snow water were HCO3--Ca2+ and HCO3--Ca2+?Mg2+, respectively. Due to the influence of many factors, the temporal and spatial variations of major ions in river water were different. Hydrochemical composition of river water and spring water was controlled by rock weathering, snow water was controlled by rock weathering and precipitation. The major ions of river water and spring water were derived from carbonate weathering which dominated by dolomite, silicate weathering and evaporite dissolution of halite, gypsum and sulfate minerals. The contribution of cations from atmospheric and rock weathering was different in different seasons. On the whole, the cations in river water were mainly derived from silicate weathering in winter and spring, the contribution ratio were 36.21% and 35.54%, respectively. The contribution ratio was ordered by carbonate>silicate>rain>evaporite in summer and carbonate>silicate>evaporite>rain in autumn. In general, the cations of river water mainly come from carbonate and silicate weathering.

Key words: source region of Shule River, hydrochemistry, controlling factors, contribution ratio

中图分类号: 

  • P332.7