浙江近岸海域赤潮事件时空分布特征研究  

Research on the temporal and spatial distribution characteristics of red tide in Zhejiang coastal area

作　　者：李阳东[1,2,3,4] 谢洋洋 李仁虎 常亮 LI Yang-dong;XIE Yang-yang;LI Ren-hu;CHANG Liang(College of Marine Science,Shanghai Ocean University,Shanghai 201306 China;Key Laboratory of Oceanic Fisheries Exploration,Ministry of Agriculture and Rural Affaires,Shanghai 201306 China;Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources,Ministry of Education,Shanghai 201306 China;Shanghai Engineering Research Center of Estuarine and Oceanographic Mapping,Shanghai 201306 China)

机构地区：[1]上海海洋大学海洋科学学院,上海201306 [2]农业农村部大洋渔业开发重点实验室,上海201306 [3]大洋渔业资源可持续开发教育部重点实验室,上海201306 [4]上海市河口海洋测绘工程技术研究中心,上海201306

出　　处：《海洋预报》2021年第1期55-61,共7页Marine Forecasts

基　　金：国家自然科学基金(41506211);国家重点研发计划(2019YFD0901404)。

摘　　要：利用浙江省海洋灾害公报中2006—2017年的赤潮灾害数据,分析了浙江近海赤潮的年、月和季节尺度的变化规律,同时分析了浙江近海赤潮的空间分布规律。将自适应带宽核密度分析方法应用于赤潮灾害研究,分析了浙江近海不同海域受赤潮影响的程度。研究结果表明:浙江海域赤潮高发于春末和夏季,5月是发生峰值期;从年际情况看,近年来赤潮发生的累计次数和面积呈上升趋势;浙江省赤潮主要发生在5个海域,按受赤潮影响的程度由高到低依次为舟山本岛、嵊泗列岛、温州、宁波和台州。Based on the red tide disaster data between 2006 and 2017 obtained from Zhejiang Province marine disaster bulletin,this paper analyzes the characteristics of the interannual,monthly and seasonal variations and spatial distribution of red tide in the Zhejiang coastal area.The adaptive bandwidth kernel density analysis method is used to analyze the impact level of red tide in different parts of the Zhejiang coastal area.The results show that red tide occurs most frequently in late spring and summer with the maximum in May.At an interannual scale,the accumulative frequency and area of red tide show an increasing trend in recent years.In the Zhejiang coastal area,red tide mainly occurs in five regions,which are Zhoushan,Shengsi,Wenzhou,Ningbo and Taizhou according to the degree of red tide influence in descending order.

关 键 词：浙江 赤潮 时空分布特征 自适应带宽核密度分析 

分 类 号：X55[环境科学与工程—环境工程]