渤海湾天津段海岸带水环境质量灰色关联度评价_秦昌波.pdfVIP

DOI ：10.13198/j.res.2006.06.96.qinchb.019 19 6 Research of Environmental Sciences Vol. 19, No. 6, 2006 * 秦昌波, 郑丙辉 , 秦延文, 雷 坤, 于 涛 , 100012 : , , , , . , , COD , BOD , , DO , Mn 5 a . : ) ) ) , Ó ~ Ô ; Ò , , Ñ . . : ; ; ; : X824 : A : 1001- 6929(2006) 06 - 0094 -06 Gray Correlation Assessment of Water Environment Quality for Tianjin Coastal Zone in Bohai Bay QIN Chang- o, ZHENG Bing-hui, QIN Yan-wen, LEI Kun, YU Tao Chinese Research Academy of Environmental Sciences, Beijing 100012, China 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 a solute grey correlation degree with varia le weights was presented, ased on the analysis of different computation methods of a solute grey correlation degree widely used at present. The indicator system of coastal water environment was developed, which is composed of physical, chemical and iological indicators. The physical and chemical indicators are made up of COD , Mn BOD , DIN, DIP and DO, etc. , and the iological indicators include the chlorophyll-a concentration and Shannon-Wiener diversity index of 5 phytoplankton, Shannon-Wiener diversity index and Pielou. s evenness index of zooplankton, Shannon-Wiener diversity index and Margalef. s richness index of enthic fauna. Assessment resultsfor Tianjin Coastal Zone indicate that the northern regions, i. e. those near y Dagukou, are of Class Ó ~ Ô faced with pollution threatening, the middle and southern regions are