通过分析四十里湾海域连续6 a(2003~2008年)赤潮高发期(5~9月)的监测数据,发现2003~2008年该海域总无机氮、硅酸盐、COD和叶绿素 a 含量均呈上升趋势;磷酸盐没有明显的上升或下降趋势;叶绿素 a 含量与总无机氮浓度、磷酸盐浓度均呈显著的正相关;N/P值明显高于Redfield比值,且逐年上升,显示该海区处于相对的磷限制状态.
中文摘要
The Harmful Algal Blooms(HABs) in the cultivated area of Sishili Bay usually occurred in warm days.The study on the environment state in Sishili Bay in May,Jun.,Jul.,Aug.and Sep.2003 ~ 2008 was made.The results showed that the main nutrient loading is from the terrestrial sources.Annual variations of DIN,SiO3-Si,COD and Chla were lineally increased.Annual variation of PO4-P was not clearly increased or decreased trend.The correlations between Chla and DIN,PO4-P were significantly positive.Molar N/P ratios w...
修改评论