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西宁市北川河地表水水文化学特征

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为了研究西宁市北川河地表水化学特征与水质变化情况,本文通过系统的样品采集,探究北川河空间分布特征、水化学分类等典型指标并进行相关性分析.结果表明:西宁市北川河地表水水化学类型较为复杂,其化学组分在空间分布上有一定的规律性;通过水化学分类可将北川河分为两段,下游段流经生态公园流域的离子含量明显降低,表明生态公园对河流的净化作用大于河流的自净化;地表水溶质来源以碳酸盐矿物风化为主,阳离子交换作用在河流全段均有发生;相关性分析表明部分离子与微量元素有相同的来源,聚类分析表明化学组分有明显区域性.
Hydrochemical characteristics of surface water of the Beichuan River in Xining
In order to investigate the surface hydrochemical characteristics and water quality varia-tions of the Beichuan River in Xining,samples are systematically collected for exploring the spatial distribution characteristics,hydrochemical classification and other typical indicators of the river.Be-sides,correlation analysis is conducted for the study.The results indicate that the hydrochemical types of surface water of Beichuan river are relatively complex,and their chemical components have certain regularity in spatial distribution.The river can be divided into two sections based on the hydrochemical classification.The ion content of the downstream section flowing through the ecological park decreases significantly,indicating that the ecological park has a greater purification effect on the river than its self-purification.The solute source of surface water is mainly carbonate mineral weathering.Cation exchange occurs throughout the entire section of the river.Correlation analysis shows that some ions and trace elements have the same source,while cluster analysis shows that the chemical components have obvious regional characteristics.

hydrochemical classificationspatial distributionsolute sourceBeichuan River

胡建、徐建东、王建国、曹拯、王志男、魏生云

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青海大学地质工程学院,青海 西宁 810016

青海大学省部共建三江源生态与高原农牧业国家重点实验室,青海 西宁 810016

青海省青藏高原北缘新生代资源环境重点实验室,青海 西宁 810016

水化学分类 空间分布 溶质来源 北川河

青海省科技厅项目

2019-ZJ-7022

2024

青海大学学报(自然科学版)
青海大学

青海大学学报(自然科学版)

影响因子:0.355
ISSN:1006-8996
年,卷(期):2024.42(3)
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