CAJ | 학술논문

本文以1983-2011年的多源遥感数据为基础，利用GIS空间分析和地图代数功能，提取杭州湾海岸线，分析了其变迁的位置、长度，以及增加和减少的陆地面积。结果表明：受到自然和人为因素的影响，杭州湾南北两岸的海岸线变迁规律不同。杭州湾北岸1983-1993年共有60.2km的海岸线向陆迁移，最大迁移距离0.6km，减少的陆地面积共为23.5km2。1993-2011年由于围垦和工业填海北岸向海迁移。其中,1993-2002年最大迁移距离3.6km，新增陆地面积42.5km2，2002-2011年最大迁移距离2.9km，新增陆地面积61.0km2。由于淤积和围垦，杭州湾南岸海岸线不断向海迁移，1983-1993年、1993-2002年和2002-2011年向海迁移最大距离分别是1.8km、2.7km和5.1km，新增陆地面积分别为34.3km2、230.2km2及331.7km2。海岸线向海迁移的速度越来越快，规模越来越大。研究成果对于地图制图、滨海湿地生态资源管理，以及海岸线保护具有十分重要的意义。
본문이1983-2011년적다원요감수거위기출，이용GIS공간분석화지도대수공능，제취항주만해안선，분석료기변천적위치、장도，이급증가화감소적륙지면적。결과표명：수도자연화인위인소적영향，항주만남북량안적해안선변천규률불동。항주만북안1983-1993년공유60.2km적해안선향륙천이，최대천이거리0.6km，감소적륙지면적공위23.5km2。1993-2011년유우위은화공업전해북안향해천이。기중,1993-2002년최대천이거리3.6km，신증륙지면적42.5km2，2002-2011년최대천이거리2.9km，신증륙지면적61.0km2。유우어적화위은，항주만남안해안선불단향해천이，1983-1993년、1993-2002년화2002-2011년향해천이최대거리분별시1.8km、2.7km화5.1km，신증륙지면적분별위34.3km2、230.2km2급331.7km2。해안선향해천이적속도월래월쾌，규모월래월대。연구성과대우지도제도、빈해습지생태자원관리，이급해안선보호구유십분중요적의의。
The coastline is defined as the line of contact between land and a body of water. Coastline change de-tection is critical issues for coastal resource management, coastal environmental protection, and sustainable de-velopment and planning. Changes of coastline may be caused by natural processes and/or human activities. Over the past 30 years, the coastal sites in Hangzhou Bay have been under an intensive restraint associated with popu-lation growth and economic development. This study introduced object-oriented classification method to monitor coastline changes in Hangzhou Bay using multi-source remote sensing data, i.e., Landsat Multispectral Scanner (MSS) image in 1983, Landsat Thematic Mapper (TM) image in 1993, Landsat Enhanced Thematic Mapper Plus (ETM + ) image in 2002, and Environment Satellite Charge Coupled Device (CCD) image in 2011. Results showed that, from 1983 to 1993, there was 60.2 km northern coastline moved landward with the maximum dis-tance of 0.6 km and a lost area of 23.5 km2, because of the coastal erosion. And from 1993 to 2011, the northern coastline moved seaward because of land reclamation and construction. From 1993 to 2002, this part of coastline moved seaward with the maximum distance of 3.6 km and 42.5 km2 filled up areas. From 2002 to 2011, it moved seaward with the maximum distance of 2.7km and 61.0 km2 filled up areas. From 1983 to 1993, natural process-es were the main reasons for northern coastline recession. During the study periods, southern coastline of Hang-zhou Bay moved seaward caused by sedimentation and land reclamation. From 1983 to 1993, 1993 to 2002, and 2002 to 2011, this coastline moved seaward with the maximum distance of 1.8km, 2.7 km and 5.1 km, respective-ly, and with area of 34.3 km2, 230.2 km2 and 331.7km2 sea surfaces turned into mainland, respectively. Southern coastline moved seaward was the result of natural processes and human activities. From 1983 to 2011, the filled up areas were growing faster and larger. The result of this study can provide valuable information for Hangzhou Bay coastline dynamics and may assistant to the coastal land management and sustainable development and plan-ning.