长时序遥感支持下的江苏海岸线时空变化分析  

Spatial and Temporal Variation Analysis of Jiangsu Coastline Supported by Long Time Series Remote Sensing

作　　者：胡浩然 张绍良 侯湖平 徐浩楠 HU Haoran;ZHANG Shaoliang;HOU Huping;XU Haonan(School of Environment and Spatial Informatics,China University of Mining and Technology,Xuzhou,Jiangsu 221116,China;Engineering Research Center of Ministry of Education for Mine Ecological Restoration,Xuzhou,Jiangsu 221116,China)

机构地区：[1]中国矿业大学环境与测绘学院,江苏徐州221116 [2]教育部矿山生态修复工程研究中心,江苏徐州221116

出　　处：《遥感信息》2025年第1期104-113,共10页Remote Sensing Information

基　　金：江苏省海洋科技创新专项(JSZRHYKJ202204)。

摘　　要：针对江苏省高潮水位遥感影像获取困难以及海岸线淤蚀特征、岸线类型演变分析不明确的问题,基于光谱指数最大合成算法生成的最高潮水时刻影像,采用最大类间方差算法提取了2000-2023年江苏省海岸线,将海岸线分为自然岸线、养殖塘岸线、人工防护岸线、港口码头岸线,并分析岸线淤蚀特征和岸线类型。结果表明:2000-2023年间,江苏省海岸线长度呈现增长趋势,从757.45 km增长到987.19 km;江苏省海岸线呈现淤积趋势,基本为北部侵蚀、南部淤积的规律,淤积速度最快的地区为方塘河口(条子泥),侵蚀严重地区在射阳、滨海岸段,自然岸线、人工防护岸线和港口码头岸线的占比有所增加,养殖塘岸线占比降低,未来仍有继续减少转化为自然岸线的趋势;江苏省海岸线主要影响因素有滨海植被、围垦活动的促淤作用,以及人工防护工程的保护岸线侵蚀作用。It is difficult to obtain remote sensing images of high water level in Jiangsu province,and the analysis of the characteristics of coastline erosion and the evolution of shoreline types is not clear.In this paper,based on the highest tide time image generated by the spectral index maximum synthesis algorithm,the coastline of Jiangsu province from 2000 to 2023 is extracted by the maximum interclass variance algorithm,and the coastline is divided into natural shoreline,cultured pond shoreline,artificial protection shoreline and port shoreline.The characteristics of shoreline erosion and the type of shoreline are analyzed.The results show that the coastline length of Jiangsu province increases from 757.45 km to 987.19 km during 2000-2023.The coastline of Jiangsu province shows a trend of siltation,which is basically the law of erosion in the north and sedimentation in the south,and the area with the fastest siltation rate is Fangtang estuary(slimy mud).In Sheyang and Binhai,the proportion of natural shoreline,artificial protection shoreline and port shoreline has increased,while the proportion of cultured shoreline has decreased,and there is still a trend of decreasing into natural shoreline in the future.The main influencing factors of the coastline of Jiangsu province are coastal vegetation,siltation promotion by reclamation activities,and erosion protection by artificial protection works.

关 键 词：环境遥感 海岸线 马尔科夫 时空变化 江苏 

分 类 号：TP751.2[自动化与计算机技术—检测技术与自动化装置]