湛江湾表层海水悬浮物分布特征及影响因素

发布时间：2018-07-31 20:11

【摘要】：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(p0.05),与水温呈极显著性负相关,相关系数为-0.572(p0.01);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(p0.01)。其他因子相关性不明显。
[Abstract]:In 2014, the results of two seasons investigation on the content of suspended matter in Zhanjiang Bay showed that the content of suspended matter in surface seawater of Zhanjiang Bay in winter was significantly higher than that in summer, and the regional distribution was not significant. The variation range of suspended matter content in winter is 2.1 ~ 28.2 mg / L, the average value is 11.1 mg / L, and that in wide summer is 1.6 ~ 18.0 mg / L, with an average of 6.7 mg 路L ~ (-1). The loss of suspended solids shows that inorganic matter is the main component of suspended matter in Zhanjiang Bay. Through the Pearson correlation analysis of the content of suspended solids, the median particle size of suspended solids, the amount of suspended solids burning and the main factors related to the environment, the results showed that the content of suspended solids was negatively correlated with the particle size of suspended solids. The correlation coefficient was -0.418 (p0.05), the correlation coefficient was -0.572 (p0.01) and the correlation coefficient was -0.572 (p0.01). The correlation of other factors was not obvious.
【作者单位】：广东海洋大学海洋资源与环境监测中心;
【基金】：国家海洋局海洋公益性行业科研专项经费资助项目(201305038-6,201505027-1)
【分类号】：P734;X55

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