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2014年对湛江湾表层海水悬浮物含量的2个季节调查结果显示,湛江湾表层海水悬浮物含量冬季显著高于夏季,区域分布不显著。其中,冬季悬浮物含量变化范围为2.1~28.2 mg/L,平均值为11.1 mg/L;广泛夏季悬浮物含量变化范围为1.6~18.0 mg/L,平均值为6.7 mg/L。悬浮物烧失量显示,无机质是湛江湾表层水体悬浮物主要成分。通过对悬浮物含量、悬浮物中值粒径、悬浮物烧失量及主要环境相关因子做Pearson相关性分析,结果显示,悬浮物含量与悬浮物粒径呈显著性负相关,相关系数为-0.418(p<0.05),与水温呈极显著性负相关,相关系数为-0.572(p<0.01);与pH、叶绿素a、DO呈极显著性正相关,相关系数分别为0.677、0.548、0.553(p<0.01)。其他因子相关性不明显。
The results of two seasons of the suspended sediment contents in the surface water of Zhanjiang Bay in 2014 show that the suspended matter content of the surface seawater in Zhanjiang Bay was significantly higher in summer than in summer and the regional distribution was not significant. Among them, the content of suspended matter in winter varied from 2.1 to 28.2 mg / L with an average value of 11.1 mg / L. The content of suspended solids in a wide range of summer varied from 1.6 to 18.0 mg / L with an average value of 6.7 mg / L. Loss on ignition of suspended matter shows that inorganic matter is the main component of suspended solids in surface water of Zhanjiang Bay. The results of Pearson correlation analysis showed that there was a significant negative correlation between the content of suspended solids and the particle size of suspended solids, the correlation coefficient was - 0.418 (p <0.05). The correlation coefficient was -0.572 (p <0.01), and it had a significant positive correlation with pH, chlorophyll a and DO, the correlation coefficients were 0.677, 0.548 and 0.553 (p <0.01). Other factors are not obvious.