%0 Journal Article
%T Multi-Source-Based Space-Time Analysis of Shoreline Changes in Eastern Liaodong Bay Top<br>基于多源信息的辽东湾顶东部海岸时空变化研究
%A WU Fang
%A SU Fenzhen
%A PING Bo
%A WU Wenzhou
%A ZHU Liang
%A <br>武芳
%A 苏奋振
%A 平博
%A 吴文周
%A 朱良
%J 资源科学
%D 2013
%I 
%X Due to the development of the local economy and exploitation of the shoreline, Liaodong Bay has changed. The analysis of shoreline changes plays a pivotal role in the development of the economy and policy. Prior to the 1990s, wetland degradation, sandy shoreline erosion and man-made land projects were responsible for changes in Liaodong Bay's shoreline. We analyze changes in the shoreline across the study area, examining the impacts of comprehensive development and management, and raise scientific alternatives for improved outcomes. Since RS and GIS based spatial analysis can detect shoreline changes immediately and accurately, this research adopted band 7, band 4 and band 1 TM data to compose false color images using ArcGIS. We propose six principles to distinguish different types of shoreline. According to field surveys and monitoring data, we found that trends in the length of shoreline have not changed and show a consistent increase in length while curvature is declining. The shape of the coast has trended from arc to jagged and has been driven by man-made development. Wetland resources have been converted from dimension change to qualitative change. The area of man-made land has shown index increase and breakwater is effective to reduce erosion of the sandy shoreline. These patterns indicate that in a relatively stable environment, social and economic factors are the main causes of shoreline change. Different institutions and different shaping shoreline policies cause various impacts. A combination of short-term high-density shoreline detection and traditional large scale detection will be highly effective in analyzing the impact caused by human activities. Monitoring shoreline development and management as well as intervention will also benefit from combined detection.
%K Liaodong Bay
%K Shoreline
%K RS
%K GIS
%K Space-Time analysis<br>辽东湾
%K 海岸线
%K RS
%K GIS
%K 时空变化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=b5edd921f3d863e289b22f36e70174a7007b5f5e43d63598017d41bb67247657&cid=b47b31f6349f979b&jid=9deeaf23637e6e9539ad99be6abab2b3&aid=2d4a7443505a2f1b0d7d70a120d40189&yid=ff7aa908d58e97fa&vid=6209d9e8050195f5&iid=e158a972a605785f&sid=4aa5fa7f666bdd0a&eid=bebf2238c7f1c1f1&journal_id=1007-7588&journal_name=资源科学&referenced_num=0&reference_num=18