干旱区研究 ›› 2022, Vol. 39 ›› Issue (3): 829-840.doi: 10.13866/j.azr.2022.03.16

• 水资源及其利用 • 上一篇    下一篇

博尔塔拉河上游河谷地区水化学特征及水质评价

丁启振1,2,3(),雷米1,2,3(),周金龙1,2,3(),张杰4,徐东升5   

  1. 1.新疆农业大学水利与土木工程学院,新疆 乌鲁木齐 830052
    2.新疆水文水资源工程技术研究中心,新疆 乌鲁木齐 830052
    3.新疆水利工程安全与水灾害防治重点实验室,新疆 乌鲁木齐 830052
    4.南宁师范大学地理科学与规划学院,广西 南宁 530100
    5.中水北方勘测设计研究有限责任公司,天津 300222
  • 收稿日期:2021-09-30 修回日期:2021-11-17 出版日期:2022-05-15 发布日期:2022-05-30
  • 通讯作者: 雷米,周金龙
  • 作者简介:丁启振(1998-),男,硕士研究生,主要从事干旱区地下水水质演化的学习与研究. E-mail: 1650655141@qq.com
  • 基金资助:
    新疆维吾尔自治区寒旱区水资源与生态水利工程研究中心(院士专家工作站)新疆水专项(2020.C-005)

An assessment of groundwater, surface water, and hydrochemical characteristics in the upper valley of the Bortala River

DING Qizhen1,2,3(),LEI Mi1,2,3(),ZHOU Jinlong1,2,3(),ZHANG Jie4,XU Dongsheng5   

  1. 1. College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, Xinjiang, China
    2. Xinjiang Hydrology and Water Resources Engineering Research Center, Urumqi 830052, Xinjiang, China
    3. Xinjiang Key Laboratory of Hydraulic Engineering Safety and Water Disaster Prevention, Urumqi 830052, Xinjiang, China
    4. School of Geography and Planning, Nanning Normal University, Nanning 530100, Guangxi, China
    5. Zhongshui North Engineering Design & Research Co. Ltd., Tianjin 300222, China
  • Received:2021-09-30 Revised:2021-11-17 Online:2022-05-15 Published:2022-05-30
  • Contact: Mi LEI,Jinlong ZHOU

摘要:

为了解博尔塔拉河上游河谷地区地下水和地表水水化学特征及水质状况,以36组水样数据为基础,运用Piper图、相关性分析、Gibbs图和离子比值等方法研究水化学特征及其影响因素,采用熵权-贝叶斯水质评价模型、Wilcox图和USSL图等方法进行水质评价。水化学分析结果显示:(1) 研究区机井水、泉水和河水均为弱碱性淡水,总硬度(TH)、溶解性总固体(TDS)、F- N O 3 -整体表现为:机井水>泉水>河水, H C O 3 -和Ca2+分别为优势阴、阳离子,博尔塔拉河上游水中各组分含量沿程呈增加趋势;(2) 区内机井水和泉水水化学类型以HCO3-Ca型为主,河水水化学类型主要为HCO3-Ca型和HCO3·SO4-Ca·Na型,水化学特征主要受控于岩石风化作用,水化学组分主要来源碳酸盐岩风化,且存在蒸发盐岩溶解,同时也受阳离子交换作用和人类活动的影响。饮用水水质评价显示,82.6%的机井水和100%的泉水适合饮用或基本适合饮用,或进行适当处理后适合饮用;不适合饮用的水样点主要受Fe、F- N O 3 -等超标严重影响;对于灌溉水质评价而言,区内河水、机井水和泉水水质较好均适合灌溉。

关键词: 水化学特征, 水质评价, 熵权-贝叶斯水质模型, 博尔塔拉河上游河谷地区, 新疆

Abstract:

This paper examined the hydrochemical characteristics and water quality status of groundwater and surface water in the upper valley of the Bortala River, Xinjiang. The examination was based on 36 groups of water sample data. Hydrochemical characteristics and their influencing factors were studied by Piper diagram, correlation analyses, Gibbs diagram and ion ratio, and the entropy-Bayesian water quality evaluation model, Wilcox and USSL diagrams were used to evaluate water quality. Results of hydrochemical analyses showed the following: (1) the mechanical well water, spring water, and river water in the study area were weakly alkaline fresh water, and total hardness (TH), F-, N O 3 - and total dissolved solids were aligned as mechanical well water > spring water > river water, whereas H C O 3 - and Ca2+ were the dominant anions and cations, respectively. Contents of each component in the upper Bortala River increased along the river. (2) The main hydrochemical types of mechanical well water and spring water in the area were the HCO3-Ca type, and main hydrochemical types of river water were the HCO3-Ca and HCO3·SO4-Ca·Na types. Hydrochemical characteristics were controlled mainly by rock weathering, and hydrochemical components were mainly from carbonate rock weathering. Evaporation rock dissolution also occurred and it was affected by cation exchange and human activities. The water quality evaluation of drinking water showed that 82.6% of mechanical well water and 100% of spring water were suitable for drinking, basically suitable for drinking, or suitable for drinking after proper treatment. Water sample points that were not suitable for drinking were affected mainly by excessive Fe, F-, and N O 3 -. River water, well water, and spring water were suitable for the evaluation of irrigation water quality.

Key words: hydrochemical characteristics, water quality assessment, entropy-Bayesian water quality model, upper valley of Bortala River, Xinjiang