近30年浙江省大陆海岸线遥感监测与变迁分析  

Remote Sensing Monitoring and Analysis of Zhejiang Terrestrial Coastline Evolution in the Past 30 Years

作　　者：张琳[1] 潘玉良[1,2] 雷惠 黄备[3,2] 周斌 

机构地区：[1]杭州师范大学遥感与地球科学研究院,杭州311121 [2]海洋生态系统监测与健康评价联合实验室,浙江舟山316021 [3]浙江省舟山海洋生态环境监测站,浙江舟山316021

出　　处：《科技通报》2017年第12期54-59,140,共7页Bulletin of Science and Technology

基　　金：国家863课题(2014AA123301);浙江省科技厅公益技术研究社会发展重点项目(2014C23002);杭州市高校产学对接校企共建校内实训基地"遥感信息产业人才创新工场"建设项目(hzsfdx10)

摘　　要：以1985、1995、2005年TM和2015年OLI 4期Landsat影像为遥感数据源,目视解译提取浙江省大陆海岸线,分段分析各期海岸线长度、围填面积和土地利用类型及分形维数的变化情况。研究表明,近30 a来浙江省大陆海岸线加速向海洋扩张,其中杭州湾岸段变迁规模最大。海岸线长度总体呈减少趋势,共减少39.19 km,人工改造是岸线变迁的主导因素,总围填面积达1309.93 km2;土地利用类型主要是种植养殖、填海造地,基础建设只占小部分但近年呈加速上升趋势,至2015年有179.72 km2发生了土地利用变化;浙江大陆海岸线分形维数较小,总体呈降低趋势,且与海岸线长度变化趋势一致。Taking TM data in 1985、1995、2005 and OLI data in 2015 as remote sensing data source,the terrestrial coastline of Zhejiang province were extracted via visual interpretation. By analyzing the change law of coastline length,reclamation area,land-use and fractal dimension,we concluded that Zhejiang terrestrial coastline continuously expanded forward ocean and the most obvious change happened in Hangzhou Bay coast.The coastline length had a decreasing trend in general and the total reduction was 39.19 km.Human reclamation activity was the dominant factor of shoreline change,and the total reclamation area was 1309.93 km2 which was mainly used for agriculture and aquiculture.Infrastructure accounted for only a small part but had an upward trend in recent years,and the area of total land-use change was 179.72 km2 by 2015.The fractal dimension of Zhejiang terrestrial coastline was relative small and had a decreasing trend which was consistent with coastline length.

关 键 词：大陆岸线 遥感监测 变迁分析 分形维数 

分 类 号：P236[天文地球—摄影测量与遥感]