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根据2015年度大鹏湾近岸海域5个海洋环境浮标的在线监测数据,分析大鹏湾海域海水中叶绿素a(Chl a)的时空分布特征及其与主要水质参数的相关关系。结果表明大鹏湾Chl a含量在春、夏、秋季较高,而冬季较低,实测最大值为82.23μg/L;受水动力环境及陆源排放影响,终年沙头角附近海域的Chl a含量明显高于其他区域。Pearson相关分析结果表明,大鹏湾海域Chl a含量与水温呈现正相关关系,但与盐度不存在显著意义的相关关系。总体来看,Chl a含量的时空分布受陆地径流、外源输入和养殖环境状况等的共同影响。
According to the on-line monitoring data of 5 marine buoys in the coastal area of Mirs Bay in 2015, the spatial and temporal distribution of chlorophyll a (Chl a) in seawater of Dapeng Bay sea area and its correlation with the main water quality parameters were analyzed. The results showed that the content of Chl a in Dapeng Bay was higher in spring, summer and autumn, but lower in winter, the maximum measured value was 82.23 μg / L. Chl a content in sea area near Sha Tau Kok was significantly affected by hydrodynamic environment and terrestrial emissions Higher than other regions. Pearson correlation analysis showed that there was a positive correlation between Chl a content and water temperature in Dapeng Bay waters, but no significant correlation with salinity. Overall, the spatial and temporal distribution of Chl a content is affected by both land runoff, exogenous inputs, and farming conditions.