| 基于GIS的近30年长江口及其邻近海域赤潮时空分布特征研究 |
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| 引用本文： | 赵艳民,秦延文,张雷,乔飞,马迎群.基于GIS的近30年长江口及其邻近海域赤潮时空分布特征研究[J].海洋科学,2021,45(12):39-46. |
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| 作者姓名： | 赵艳民 秦延文 张雷 乔飞 马迎群 |
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| 作者单位： | 中国环境科学研究院,北京 100012 |
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| 基金项目： | 国家重点研发计划项目（2016YFA0600904，2017YFC040470002） |
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| 摘 要： | 收集了1990年—2019年长江口及其邻近海域(120°30'E～123°30'E,29°00'N～32°30'N)记载的赤潮事件,基于GIS软件对所有赤潮事件进行整理,分析了赤潮的时空分布规律,并绘制长江口及邻近海域赤潮分布图.结果表明:近30年来,长江口及其邻近海域赤潮经历了先升高后下降的过程,赤潮次数共计144次,赤潮面积>1000 km2有28次.赤潮发生核心区集中在长江口外、花鸟山-嵊泗列岛、岱山岛-中街山列岛、舟山岛-朱家尖岛海域;长江口及邻近海域赤潮多发期为5—8月,5、6、7、8月发生的赤潮次数分别占总数的28.37％、34.75％、17.78和9.29％;东海原甲藻(Prorocenrum donghaiense)、中肋骨条藻(Skeletonema costatum)是长江口及其邻近海域最常见赤潮肇事种,发生次数分别为55次和40次,占统计总次数的38.19％和27.78％,2000年以来,东海原甲藻赤潮发生频率呈上升态势.
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| 关 键 词： | 长江口及邻近海域 赤潮 时空分布 地理信息系统 |
| 收稿时间： | 2021/2/20 0:00:00 |
| 修稿时间： | 2021/7/6 0:00:00 |
Temporal and spatial distribution of red tides in the Changjiang estuary and in adjacent waters from 1989 to 2019 |
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| ZHAO Yan-min,QIN Yan-wen,ZHANG Lei,QIAO Fei,MA Ying-qun.Temporal and spatial distribution of red tides in the Changjiang estuary and in adjacent waters from 1989 to 2019[J].Marine Sciences,2021,45(12):39-46. |
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| Authors: | ZHAO Yan-min QIN Yan-wen ZHANG Lei QIAO Fei MA Ying-qun |
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| Institution: | Chinese Research Academy of Environmental Sciences, Beijing 100012, China |
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| Abstract: | Red tide events were collected in the Changjiang estuary and adjacent waters from 1989 to 1990. A geographic information system (GIS) was used to analyze the temporal and spatial distribution of the red tide. Results showed a total count of 144 red tide events. There were 28 red tide events in a covered area larger than 1000 km2. Outside the Changjiang estuary, the Huaniaoshan-Shengsi archipelago and Zhoushan-Zhujiajian island were the red tide-prone areas. Most of the red tide events occurred from May to August with a frequency of occurrence of 28.37%, 34.75%, 17.78%, and 9.29% in May, June, July, and August, respectively. Prorocentrum donghaiense and Skeletonema costatum were the dominant species of red tides in the Changjiang estuary and the adjacent sea. |
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| Keywords: | Changjiang estuary and adjacent waters red tide temporal and spatial distribution geographic information system |
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