环境要素与连云港海域赤潮发生关系研究  

Survey on the causes and features of red tide in Lianyungang coastal waters

作　　者：彭模 刘寿东[1] 赵爱博 杨耀中[2] 

机构地区：[1]南京信息工程大学应用气象学院,江苏南京210044 [2]江苏省海洋环境监测预报中心,江苏南京210036

出　　处：《海洋预报》2015年第2期51-56,共6页Marine Forecasts

基　　金：国家科技支撑计划(2013BAB04B03);国家海洋局海洋公益性行业科研专项(201205005);江苏省科技支撑计划(BE2012774;BE2014729)

摘　　要：根据2004—2013年连云港海域赤潮事件记录和赤潮监控区监测数据,采用相关性分析等数理统计方法,对连云港海域赤潮特征及其与环境要素的关联性进行研究。结果表明,5—10月为连云港海域赤潮频发时段,每次过程持续大多在3—7天之间;赤潮发生前三日叶绿素a、溶解氧、海温、化学需氧量和p H等要素与赤潮发生表征指标浮游植物总量相关性显著;在赤潮发生发展消亡过程中,海温、叶绿素a、溶解氧和p H均呈现出先上升后下降的趋势,化学需氧量则表现为相反变化态势;赤潮发生前期和发展维持阶段,以东到东南向风为主,风速较小,赤潮消亡前夕,常伴随偏西大风过程。Based on the events of red tide and the element data of the red tide at high frequency area in Lianyungang coastal waters from 2004 to 2013, by using multivariate linear regression analysis method, the characteristics of the red tide and the relevance between it and the hydrological and environmental factors are analyzed. It is showed that the red tide in Lianyungang coastal waters always occurs from May to October. It is founded that each process of the red tide＇s occurrence continues mostly from three to seven days. The number of phytoplankton has a high correlation with Chl-a, DO, Sea Temperature, COD and p H. During the process of the red tide, Sea Temperature, Chl-a, DO and p H increase firstly and then decrease, while COD shows the opposite changing trend. It always appears east to southeast wind with low speed in the early development stage of the red tide＇s occurrence, while it mostly appears west strong wind in the dying stage.

关 键 词：连云港 赤潮 影响要素 

分 类 号：X55[环境科学与工程—环境工程]