2010—2015年环渤海海岸线时空变迁监测与分析  

Coastline Dynamics Monitoring and Analysis Around the Bohai Sea Using Remote Sensing Images During 2010 and 2015

作　　者：吴培强[1] 张杰[1] 马毅[1] 孙伟富[1] 

机构地区：[1]国家海洋局第一海洋研究所,山东青岛266061

出　　处：《海洋科学进展》2018年第1期128-138,共11页Advances in Marine Science

基　　金：中央级公益性科研院所基本科研业务费专项资金资助项目--我国大陆海岸潟湖高时间分辨率遥感监测与演变特征分析(2015T03)

摘　　要：以Landsat ETM+,OLI影像为数据源,开展了2010—2015年环渤海大陆海岸线和岸线摆动区内土地覆盖信息提取,并对其逐年时空变化特征和海岸开发方式进行了系统分析。结果表明:环渤海大陆海岸线长度及类型动态变化显著,岸线长度增加了396.2km,以人工岸线为主,占比超过80%,共增加465.7km;其余岸线类型均出现不同程度缩减,砂质岸线变化最大,减少了35.6km。2010—2015年岸线整体向海推进导致陆域面积净增737.81km2,养殖、建设用地和交通运输用地是渤海主要的用海类型,以养殖用海最多,增加了301.88km^2,建设用地次之,增加了297.14km^2。环渤海经济快速发展带来的人为开发是环渤海岸线变化的主导因素,且开发方式时间异质性显著,2010—2012年增速剧烈,2013年后逐年变缓。Based on the Landsat ETM+ and OLI images,the coastline and coastal land cover information around the Bohai Sea were extracted during 2010 and 2015,and the temporal and spatial changes of coastline and coastal development pattern were analyzed.The coastline length and types was found to have changed significantly.The shoreline length increased by 396.2 km.The artificial coastline was the dominant type(more than 80%)in the study area,increasing by more than 465.7 km during the 5 years.The other types of coastline decreased to certain extent,and the changes of sand coastline was most significant,decreasing by the 35.6 km.There was a net increase in land area by 737.81 km^2 due to the marine utilization of aquaculture,construction and transportation.The main type of the marine utilization was aquaculture,which increased by 301.88 km^2.The second type was construction,with an increase of 297.14 km^2.With the rapid development of economy,the human being development by was regarded as the dominant factor accounting for the changes in the coastline around Bohai Sea,and the utilization pattern showed significant temporal variability.The coastline growth rate was high during 2010 and 2012,and slowed down after 2013.

关 键 词：环渤海 遥感 海岸线变迁 土地覆盖 

分 类 号：P748[天文地球—海洋科学] TP751[自动化与计算机技术—检测技术与自动化装置]