| 近30a来乐清湾海岸线与海岸湿地变迁分析 |
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| 引用本文： | 彭小家,徐韧,何彦龙.近30a来乐清湾海岸线与海岸湿地变迁分析[J].海洋环境科学,2019,38(1):68-74, 83. |
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| 作者姓名： | 彭小家 徐韧 何彦龙 |
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| 作者单位： | 上海海洋大学海洋科学学院,上海201306;国家海洋局东海环境监测中心,上海201206;国家海洋局东海环境监测中心,上海201206;中国极地研究中心,上海200236;国家海洋局东海环境监测中心,上海,201206 |
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| 基金项目： | 基于海洋健康的资源环境承载能力监测预警关键技术研究与区域示范应用(201505008);国家重点研发计划(2017YFC0506602) |
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| 摘 要： | 以Landsat ETM/ TM影像为主要数据源，采用人机交互的方式提取了1990~2017年间6期乐清湾海岸线。利用马尔科夫矩阵法计算了滩涂转化规律，并按照年份进行岸线和海岸湿地变迁分析。结合当地相关资料，开展了乐清湾区域海岸线和海岸湿地变化的驱动力分析。结果表明:乐清湾岸线以人工岸线为主，岸线变化剧烈，变化速率分布不均，海岸湿地的变化整体面积变化不大，其中人工湿地主要由自然滩涂湿地转化而来，人类围填是乐清湾海岸线和海岸湿地变迁的主要因素。
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| 关 键 词： | RS GIS 海岸线 海岸湿地 乐清湾 |
| 收稿时间： | 2017-08-24 |
Analysis on coastline and coastal wetland changes in Yueqing bay in recent 30 years |
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| Xiao-jia PENG,Ren XU,Yan-long HE.Analysis on coastline and coastal wetland changes in Yueqing bay in recent 30 years[J].Marine Environmental Science,2019,38(1):68-74, 83. |
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| Authors: | Xiao-jia PENG Ren XU Yan-long HE |
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| Institution: | 1.College of Marine Science, Shanghai Ocean University, Shanghai 201306, China |
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| Abstract: | Taking the Landsat ETM and Landsat TM images as the main data sources, the 6 phase of the Yueqing bay coastline was extracted by means of human-computer interaction in 1990~2017.The Markoff matrix method was used to calculate the change law of tidal flat, and the changes of coastline and coastal wetlands were analyzed according to the year.Based on the local data, the driving forces of coastline and coastal wetland change in the Yueqing bay region were analyzed.The results show that the Yueqing bay shoreline with artificial shoreline, shoreline change, the change rate of the uneven distribution, change of coastal wetlands in the whole area changed little, the artificial wetland mainly by natural wetland system, human reclamation is a major factor in the Gulf of Yueqing coastline and coastal wetland change. |
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