莱州湾西部海域枯水期富营养化程度的初步研究  

Eutrophication Assessment of the Western Sea Area in the Laizhou Bay During the Low Water Period

作　　者：纪大伟[1] 杨建强[1] 高振会[1] 贾永刚[1] 

机构地区：[1]中国海洋大学环境科学与工程学院

出　　处：《海洋通报》2007年第1期78-81,共4页Marine Science Bulletin

基　　金：国家重点基础研究发展项目(973 NO.2002CB412406);国家十五攻关(2001BA603B);国家海洋局青年基金

摘　　要：根据2004年5月份的调查资料,选择透明度、盐度、活性磷酸盐、溶解无机氮、硅酸盐、叶绿素a、浮游植物、浮游动物、底栖生物作为评价因子,利用层次分析法确定了各因子的层次关系和权重,建立了以营养盐和富营养化致害因素、直接效应、间接效应三方面指标为基础的综合评价指数模型,对莱州湾海域的营养水平进行了评价。各站点最终评价结果表明:莱州湾海域磷酸盐、无机氮超标严重,整体已表现出富营养化,其中黄河口和小清河口附近富营养化较为明显,这主要是受到陆源排污和海水养殖的影响。Based on the survey data of Laizhou Bay in May, 2004, salinity, Chl-a, SiO-4, phosphate, DIN, phytoplankton, zooplankton etc. were chosen to be the assessment factors for the eutrophication of coastal waters, and on such a basis, the model for comprehensive evaluation was established. The assessment and classification of nutrient levels were done by a mathematical model. The results showed that Laizhou Bay was seriously polluted by phosphate and DIN, and it was partly at the stage of eutrophication, especially at the mouths of the Yellow River and Xiaoqinghe River. The eutrophication was caused by the land-based pollutant discharge and the sea farming pollution. This basically confirmed to the reality.

关 键 词：莱州湾 富营养化 评价 

分 类 号：X82[环境科学与工程—环境工程]