广花盆地地下水水质评价及变化趋势分析
发布时间：2018-12-13 15:12
【摘要】：为分析广花盆地地下水水质变化趋势,基于广花盆地80个地下水监测井2010~2015年的监测数据,运用单项组分法和综合要素法评价了广花盆地的地下水现状,并分析了主要超标指标的时空分布特征。在此基础上,分别采用Spearman秩相关系数法和主成分分析法评价了广花盆地主要超标指标和地下水综合质量近六年的变化趋势。结果表明,广花盆地地下水的主要超标指标为氨氮、亚硝酸盐、锰、高锰酸盐指数和铁,各超标指标的浓度均呈下降趋势,但趋势不显著;受降雨影响,丰水期水质总体较枯水期好;受工业污染和人类生活污水影响,靠白云区一侧地下水水质总体较花都区差;受广州市农业污染、工业污染和人类生活污水逐年减少的影响,广花盆地地下水综合质量越变越好。研究成果可为广花盆地地下水资源的合理开发利用提供参考。
[Abstract]:In order to analyze the variation trend of groundwater quality in Guanghua Basin, based on the monitoring data of 80 groundwater monitoring wells in Guanghua Basin from 2010 to 2015, the present situation of groundwater in Guanghua Basin was evaluated by single component method and comprehensive element method. The temporal and spatial distribution characteristics of the main indicators are analyzed. On the basis of this, Spearman rank correlation coefficient method and principal component analysis method are used to evaluate the variation trend of the main over-standard indexes and the comprehensive quality of groundwater in Guanghua Basin in the past six years. The results show that the main indexes of exceeding the standard of groundwater in Guanghua Basin are ammonia nitrogen, nitrite, manganese, permanganate index and iron. Under the influence of rainfall, the water quality in high water period is better than that in dry season, and the groundwater quality in Baiyun area is worse than that in Huadu area under the influence of industrial pollution and human domestic sewage. Under the influence of agricultural pollution, industrial pollution and the decrease of human domestic sewage, the comprehensive quality of groundwater in Guanghua Basin is getting better and better. The research results can provide a reference for the rational development and utilization of groundwater resources in Guanghua Basin.
【作者单位】： 广州市水务科学研究所;中山大学地理科学与规划学院;
【基金】：广东省水利科技创新项目(2012-17) 广州市水务科技项目(GZSW1451S/YD15G0320,2016-203,swjgky-2017001)
【分类号】：X523;X824
，
本文编号：2376745
[Abstract]:In order to analyze the variation trend of groundwater quality in Guanghua Basin, based on the monitoring data of 80 groundwater monitoring wells in Guanghua Basin from 2010 to 2015, the present situation of groundwater in Guanghua Basin was evaluated by single component method and comprehensive element method. The temporal and spatial distribution characteristics of the main indicators are analyzed. On the basis of this, Spearman rank correlation coefficient method and principal component analysis method are used to evaluate the variation trend of the main over-standard indexes and the comprehensive quality of groundwater in Guanghua Basin in the past six years. The results show that the main indexes of exceeding the standard of groundwater in Guanghua Basin are ammonia nitrogen, nitrite, manganese, permanganate index and iron. Under the influence of rainfall, the water quality in high water period is better than that in dry season, and the groundwater quality in Baiyun area is worse than that in Huadu area under the influence of industrial pollution and human domestic sewage. Under the influence of agricultural pollution, industrial pollution and the decrease of human domestic sewage, the comprehensive quality of groundwater in Guanghua Basin is getting better and better. The research results can provide a reference for the rational development and utilization of groundwater resources in Guanghua Basin.
【作者单位】： 广州市水务科学研究所;中山大学地理科学与规划学院;
【基金】：广东省水利科技创新项目(2012-17) 广州市水务科技项目(GZSW1451S/YD15G0320,2016-203,swjgky-2017001)
【分类号】：X523;X824
，
本文编号：2376745
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