山东近岸海域营养盐分布特征及富营养化和有机污染评价  

Distribution Characteristics of Nutrients and Eutrophication and Organic Pollution Evaluation in the Coastal Area of Shandong

作　　者：李斌 衣秋蔚 刘增东 孔茹 王敏玲 LI Bin;YI Qiu-wei;LIU Zeng-dong;KONG Ru;WANG Min-ling(Shandong Provincial Yantai Eco-environment Monitoring Center,Yantai Shandong 264000,China)

机构地区：[1]山东省烟台生态环境监测中心,山东烟台264000

出　　处：《环境科学导刊》2022年第6期87-92,共6页Environmental Science Survey

摘　　要：根据2019年5月、8月、10月山东近岸海域3个航次的调查资料,分析了DIN、PO_(4)-P、COD的平面分布特征和水质状况,并运用单因子指数、富营养化指数和有机污染指数评价了该海域富营养化和有机污染状况。结果表明:DIN质量浓度平面分布呈现由西向东逐渐降低的趋势,北部海域高于南部海域,高值区域主要分布在莱州湾;PO_(4)-P、COD质量浓度分布较为均衡,无明显高值区域;营养盐质量浓度季节变化上,夏季最低,春季次之,秋季最高;该海域出现富营养化站位占总站位的19.1%,出现有机污染轻微污染及以上站位占总站位的21.3%,主要分布于莱州湾、胶州湾、丁字湾。According to the survey data of three voyages in the coastal area of Shandong in May,August and October of 2019,the distribution characteristics and water qualities of DIN,PO_(4)-P and COD in different seasons were analyzed,and the eutrophication status and organic pollution of the waters was assessed by single factor index,eutrophication index and organic pollution comprehensive index.The results showed that the concentration of DIN showed a tendency of gradually decreasing from west to east,high value areas appeared in Laizhou Bay.The overall trend was that their concentrations of the northern waters of Shandong were higher than those of the southern areas.The concentration of PO_(4)-P and COD was balanced,and the distribution law was not obvious.Seasonal variation of nutrients concentration was the lowest in summer and the highest in autumn,followed by spring.The eutrophication stations in the study area accounted for 19.1%,the light organic pollution and above stations accounted for 21.3%,it is mainly distributed in Laizhou Bay,Jiaozhou Bay and Dingzi Bay.

关 键 词：近岸海域 营养盐 富营养化 有机污染 山东 

分 类 号：X82[环境科学与工程—环境工程]