摘要
以ＤＩＮ、ＤＩＰ、ＣＯＤ和ＤＯ为化学指标参数，分析了１９９１～１９９６年厦门西港丰、平、枯３期水质的有机质污染和营养类型。根据西港水动力状况，分析了１９９５年西港水质在大小潮次、海水表层、底层有机质污染状况，通过盐度、氨氮、浮游植物相关分析，阐述丰、平、枯３期海水水质状况与陆源污染关系。分析结果表明：西港Ⅰ区水质基本属于中度污染状态，Ⅱ区属于轻度、中度混合污染状态。丰、枯水期水质主要受点源污染及海洋浮游生物光合作用、尸骸氧化分解影响，平水期水质除受点源污染外，还受降水及面源污染的影响。
Organic pollution state and nutrient type were studied at the West Sea Area of Xiamen in 1991～1996. Dissolved inorganic nitrogen (DIN), dissolved inorganic phosphorus (DIP), chemical oxygen demand (COD) and dissolved oxygen (DO) were determined. According to West Sea Area hydraulic model, the organic pollution states in spring, neap tides on the surface and bottom area were studied. The correlation analysis of salinity, NH 3 N and phytoplankton was applied to illustrated the seawater quality and land based pollution. The results showed that the pllution condition in the part Ⅰ of West Sea Area was at the middle level, the part Ⅱ was at a level between the low and middle pollution. The seawater quality in spring and winter was mainly influenced by the point source emission, the marine phytoplankton photosynthesis and corpse oxidizing decomposition, the seawater quality in autumn mainly was influenced by the wet deposition, area source and point source emission.
出处
《海洋环境科学》
CAS
CSCD
北大核心
1998年第4期59-64,共6页
Marine Environmental Science
关键词
有机质
富营养化
污染源
海洋污染
organic substances, eutrophication situation, pollution source
