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Spatial and seasonal characteristics of river water chemistry in the Taizi River in Northeast China

机译：东北太子河水化学的时空特征

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摘要

Anthropogenic activities have led to water quality deterioration in many parts of the world, espe-cially in Northeast China. The current work investigated the spatiotemporal variations of water quality in the Taizi River by multivariate statistical analysis of data from the 67 sampling sites in the mainstream and major tributaries of the river during dry and rainy seasons. One-way analysis of variance indicated that the 20 measured variables (except pH, 5-day biological oxygen demand, permanganate index, and chloride, orthophos-phate, and total phosphorus concentrations) showed significant seasonal (p≤0.05) and spatial (p＜0.05) var-iations among the mainstream and major tributaries of the river. Hierarchical cluster analysis of data from the different seasons classified the mainstream and tribu-taries of the river into three clusters, namely, less, mod-erately, and highly polluted clusters. Factor analysis extracted five factors from data in the different seasons, which accounted for the high percentage of the total variance and reflected the integrated characteristics of water chemistry, organic pollution, phosphorous pollu-tion, denitrification effect, and nitrogen pollution. The results indicate that river pollution in Northeast China was mainly from natural and/or anthropogenic sources, e.g., rainfall, domestic wastewater, agricultural runoff, and industrial discharge.
机译：人为活动导致世界许多地方，特别是东北地区的水质恶化。目前的工作是通过对干旱和雨季河流主流和主要支流67个采样点的数据进行多变量统计分析，调查太子河水质的时空变化。单因素方差分析表明，测量的20个变量（pH，5天生物需氧量，高锰酸盐指数，氯离子，正磷酸盐和总磷浓度除外）显示出明显的季节性（p≤0.05）和空间（p≤0.05）。 ＜0.05）河流主要支流与主要支流之间的变化。对不同季节的数据进行分层聚类分析，将河流的主流和支流分为三个聚类，即较少，中等和高度污染的聚类。因子分析从不同季节的数据中提取了五个因子，这些因子占总方差的百分比很高，反映了水化学，有机污染，磷污染，反硝化作用和氮污染的综合特征。结果表明，东北地区的河流污染主要来自自然和/或人为来源，例如降雨，生活废水，农业径流和工业排放。

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  • 来源
    《Environmental Monitoring and Assessment》 |2014年第6期|3619-3632|共14页
  • 作者

    Hongmei Bu; Wei Meng; Yuan Zhang;

  • 作者单位

    Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Datun Road, A 11, Beijing 100101, People's Republic of China;

    Laboratory of Riverine Ecological Conservation and Technology, Chinese Research Academy of Environmental Sciences, Beijing 100012, China,State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;

    Laboratory of Riverine Ecological Conservation and Technology, Chinese Research Academy of Environmental Sciences, Beijing 100012, China,State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Taizi River; Northeast China; Water pollution; Spatial characteristic; Seasonal variation; Statistical analysis;

    机译：太子河中国东北;水污染;空间特征;季节性变化;统计分析;

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