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根据灰鳖洋海域2007年、2009年和2012年夏季水质调查数据,分析了灰鳖洋海域近年来富营养化发展趋势。结果表明:灰鳖洋海域2007年到2009年富营养化程度发展平缓,2009年到2012年富营养化速度加剧;灰鳖洋海域富营养指数近岸高、外海低,呈现由沿岸到离岸方向逐渐降低的特点,反映出近岸海域的陆源污染性特征。通过营养盐结构变化分析,发现研究海域近年来活性磷酸盐含量快速增长,提出了总磷的削减和总量控制建议。
According to the data of summer water quality survey in 2007, 2009 and 2012 in Huibuyang sea area, the development trend of eutrophication in the Huibuyang ocean area in recent years was analyzed. The results showed that the degree of eutrophication in the gray-turtle ocean region developed gently from 2007 to 2009, and the eutrophication rate increased exponentially from 2009 to 2012. The eutrophication index in the gray-turtle ocean was high near the coast and low from the outer sea, The direction of gradually reducing the characteristics of reflecting the coastal waters of the terrigenous pollution characteristics. Through the analysis of nutrient structure changes, it was found that the content of active phosphate in the study area has been rapidly increasing in recent years, and the suggestion of total phosphorus reduction and total amount control has been put forward.