本文選題：嶗山灣　切入點：富營養(yǎng)化　出處：《海洋湖沼通報》2016年06期 　論文類型：期刊論文

【摘要】：根據(jù)2014年5月(春季)、8月(夏季)、11月(秋季)和2015年3月(冬季)對青島嶗山灣四個航次的調(diào)查資料,分析了無機氮(DIN)、磷酸鹽(PO_4-P)和化學(xué)需氧量(COD)的含量及結(jié)構(gòu)特征,運用單因子指數(shù)、富營養(yǎng)化指數(shù)和灰色聚類分析等方法評價了該海域富營養(yǎng)化狀況。結(jié)果表明:DIN為嶗山灣的主要污染因子,營養(yǎng)鹽及COD濃度近岸略低于灣中部及灣口。夏季航次氮磷營養(yǎng)鹽濃度低于其他季節(jié),冬季航次COD濃度略高。全年N/P平均值為68.35,營養(yǎng)結(jié)構(gòu)特征為磷限制。富營養(yǎng)化指數(shù)均值為1.34�；疑垲惙治霰砻�,春季Ⅱ級站位比例為92.86%,無Ⅲ級站位;夏季Ⅱ級和Ⅲ級站位比例分別為64.29%和21.43%;秋季Ⅱ級和Ⅲ級站位比例分別為92.86%和7.14%;冬季100%為Ⅱ級站位�；疑垲惙治龇ㄟm用于海灣富營養(yǎng)化水平評價。
[Abstract]:Based on the investigation data of four voyages in Laoshan Bay of Qingdao on May 2014 (spring, August, August, August, and March 2015, winter), the contents and structural characteristics of inorganic nitrogen (DINA), phosphate (PO4-P4) and chemical oxygen demand (COD) were analyzed. The eutrophication status in this area was evaluated by single factor index, eutrophication index and grey cluster analysis. The concentrations of nutrient and COD near shore were slightly lower than those in the middle of the bay and in the mouth of the bay, and the concentrations of nitrogen and phosphorus in summer voyage were lower than those in other seasons. The average value of COD in winter was 68.35, and the nutrient structure was limited by phosphorus. The average value of eutrophication index was 1.34.The grey cluster analysis showed that the proportion of grade 鈪，

本文編號：1642198