| 渤海湾天津段海岸带水环境质量灰色关联度评价 |
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| 引用本文： | 秦昌波,郑丙辉,秦延文,雷 坤,于 涛.渤海湾天津段海岸带水环境质量灰色关联度评价[J].环境科学研究,2006,19(6):94-99. |
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| 作者姓名： | 秦昌波 郑丙辉 秦延文 雷 坤 于 涛 |
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| 作者单位： | 中国环境科学研究院,北京,100012 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 以渤海湾天津段海岸带为例,对海岸带水环境质量评价指标和评价方法进行研究,在系统分析各种绝对灰色关联度计算方法的基础上,采用变权重的加权绝对灰色关联度计算方法,提出了基于灰色关联度的海岸带水环境质量评价方法.评价指标体系包括海岸带的物理、化学和生物指标,其中,化学指标可以选择CODMn,BOD5,无机氮,磷酸盐和DO等,生物指标包括浮游植物多样性指数和叶绿素a浓度、浮游动物的多样性指数和均匀度指数、底栖生物多样性指数和丰富度指数.对渤海湾天津段海岸带的水环境评价结果表明:北部主要排污口———大沽口附近水环境质量面临威胁,水质呈Ⅲ~Ⅳ级;而中南部水质为Ⅱ级,远岸水环境质量良好,属于Ⅰ级.说明陆源活动影响是使水环境质量受损的主要原因.
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| 关 键 词： | 水环境质量 灰色关联评价 海岸带 渤海湾 |
| 文章编号： | 1001-6929（2006）06-0094-06 |
| 收稿时间： | 2006-03-02 |
| 修稿时间： | 2006-03-02 |
Gray Correlation Assessment of Water Environment Quality for Tianjin Coastal Zone in Bohai Bay |
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| QIN Chang-bo,ZHENG Bing-hui,QIN Yan-wen,LEI Kun and YU Tao.Gray Correlation Assessment of Water Environment Quality for Tianjin Coastal Zone in Bohai Bay[J].Research of Environmental Sciences,2006,19(6):94-99. |
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| Authors: | QIN Chang-bo ZHENG Bing-hui QIN Yan-wen LEI Kun and YU Tao |
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| Affiliation: | Chinese Research Academy of Environmental Sciences,Beijing 100012,China |
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| Abstract: | A case study of Tianjin Coastal Zone in Bohai Bay was performed to research the assessment indicators and assessment method for water environment quality of coastal zones.An absolute grey correlation degree with variable weights was presented,based on the analysis of different computation methods of absolute grey correlation degree widely used at present.The indicator system of coastal water environment was developed,which is composed of physical,chemical and biological indicators.The physical and chemical indicators are made up of CODMn,BOD5,DIN,DIP and DO,etc.,and the biological indicators include the chlorophyll-a concentration and Shannon-Wiener diversity index of phytoplankton,Shannon-Wiener diversity index and Pielou’s evenness index of zooplankton,Shannon-Wiener diversity index and Margalef’s richness index of benthic fauna.Assessment results for Tianjin Coastal Zone indicate that the northern regions,i.e.those nearby Dagukou,are of Class Ⅲ～Ⅳ faced with pollution threatening,the middle and southern regions are of Class Ⅱ,and the offshore sites are of Class Ⅰ with good water quality.These mean that the impairment of coastal water environment quality is mainly suffered by land-based activities. |
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| Keywords: | water environment quality gray correlation assessment coastal zone Bohai Bay |
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