| 引用本文: | 张彦,李平,黄仲冬,等.河南省2009—2017年水体污染物时空分布特征解析[J].灌溉排水学报,0,():-. |
| ZHANG Yan,LI Ping,HUANG Zhongdong,et al.河南省2009—2017年水体污染物时空分布特征解析[J].灌溉排水学报,0,():-. |
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| 摘要: |
| 【目的】了解区域水体污染物时空的相似性和差异性特征，为水环境管理部门治理区域水环境提供一定的依据。【方法】利用河南省2009—2017年36个监测站点水体污染物（COD和NH3-N）的逐月平均质量浓度，通过统计分析了水体污染物浓度的分布特征，利用M-K检验法分析了水体污染物的变化趋势及突变情况，利用聚类分析分析了水体污染物在时间和空间上的相似性和差异性特征。【结果】COD和NH3-N平均浓度最大的监测站点分别为舞阳栗园桥和睢县板桥，最小的监测站点均为叶舞公路桥；COD和NH3-N平均浓度超过III类水质标准的监测站点分别达到了66.67%和61.67%，COD和NH3-N平均浓度均为III类水质标准及以下的监测站点仅有9个；COD和NH3-N浓度呈现显著性减小趋势的监测站点分别有25个和26个，仅有个别监测站点存在显著增加趋势；郾城漯邓桥和渑池吴庄站点的COD浓度发生明显突变，郾城漯邓桥、鹿邑东孙营和白沙水库站点的NH3-N浓度发生明显突变；水体污染物COD和NH3-N在时间和空间上的分布基本上具有一致性，在2月、3月和5月水体污染物污染程度较大的监测站点相对较多，在7月—9月、11月和12月水体污染物污染程度较小的监测站点相对较多。【结论】河南省水体污染物污染程度仍然较为严重，但其整体上呈现减小趋势，水环境污染情况逐渐改善，各监测站点的水体污染物在时间和空间分布上具有一致性。 |
| 关键词: 河南省；水体污染物；时空分布特征；M-K检验；聚类分析 |
| DOI： |
| 分类号:X824 |
| 基金项目:国家自然科学基金(51679241)；中国农业科学院基本科研业务费专项(Y2018PT72,FIRI2016-10和FIRI2016-11)；国家重点研发计划项目子课题(2017YFD0800400) |
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| Sources of the Spatio-temporal Distribution Characteristics for Water Pollutants in Henan Province from 2009 to 2017 |
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ZHANG Yan, LI Ping, HUANG Zhongdong, LIANG Zhijie, QI Xuebin
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Farmland Irrigation Research Institute,Chinese Academy of Agricultural Sciences
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| Abstract: |
| 【Objective】Understanding the spatio-temporal similarity and difference of water pollutants, which provided the basis to control the water environment for the water environment management department .【Method】The distribution characteristics, trends and mutations of water pollutant mass concentrations were analyzed separately by the statistical analysis and M-K test method, and the spatio-temporal similarity and difference of water pollutants were analyzed by the cluster analysis using the monthly average concentrations of water pollutants (COD and NH3-N) for thirty-six monitoring stations from 2009 to 2017 in Henan Province.【Result】The average concentrations of COD and NH3-N were maximum at the Liyuan Bridge of Wuyang and Banqiao of Sui County, respectively; the average concentrations of COD and NH3-N were minimum at the Highway bridge of Yewu. The average concentrations of COD and NH3-N exceeding the class III water quality standards reached 66.67% and 61.67% for the monitoring stations, respectively; there were only nine monitoring stations that the average concentrations of COD and NH3-N reached the class III water quality standards and below. There were twenty-five and twenty-six monitoring stations that the concentrations of COD and NH3-N showed a significant decreasing trend , respectively; but only a few monitoring stations showed a significant increasing trend. The COD concentrations had obvious mutation at the Luodeng Bridge of Yancheng County and Wuzhuang of Mianchi County, and the NH3-N concentrations had obvious mutation at the Luodeng Bridge of Yancheng County, Dongsunying of Luyi County and Baisha Reservoir. The temporal and spatial distribution of water pollutant concentrations were basically consistent, the water pollutant concentrations were relatively high in February, march and may and the water pollutant concentrations were relatively low in July to September, November and December.【Conclusion】In Henan province, the degree of water pollutants was still serious, but the water pollutant concentrations showed a decreasing trend. The water environment pollution situation is gradually improved, and the water pollutants are spatio-temporal basically consistent at the each monitoring stations. |
| Key words: Henan province; water pollutants; Spatio-temporal distribution characteristics ; Mann-Kendall test method; Cluster analysis |
