Dynamic Monitoring and Its Influencing Factors Analysis of Coastline in the Laizhou Bay since 1985

It is significant to extract coastline quickly and grasp the real-time changes of coastline for coastal management and planning protection. Based on nine temporal remote sensing images since 1985, combined with GIS and remote sensing technology, the dynamic change information of the coastlines in the Laizhou Bay was obtained. The results showed that the total length of the coastline in the Laizhou Bay increased from 460.33 km(2) to 686.55 km(2), and the coastline has advanced 672.60 km(2) towards the Bohai Sea. The coastline was changing to artificial coastline in general, and it was mainly attributed to natural factors and human activities from the perspective of the factors affecting the coastline change. Compared with the influence of human activities, natural factors had less influence on the coastline change of the Laizhou Bay.