The analysis of spatial and temporal changes of the continental coastlines of China in recent three decades

This paper is mainly focused on the continental coastline changes of China in the span of 1980—2010.Remote sensing images of Landsat MSS,TM and ETM+in the year of 1980,1990,2000 and 2010 are processed to extract coastlines and land use in the gap of coastline changes.Based on the technology of RS and GIS,the spatial and temporal changes of coastline are analyzed,the result show that:(1)the coastline type changes significantly,the length of artificial coastline in 1980,1990,2000,and 2010 occupies 24%,39.3%,49.4% and 56.1%,respectively;(2)the coastline change shows a significant regional characteristic,coastline changed significantly in the coast segment of the Zhujiang Estuary,the Changjiang Estuary to the Hangzhou Bay,the Lvsi Port to the Haizhou Bay,the Weihe to the Luan Estuaries and the Liaohe Estuary to the Huludao Port;(3) comparing the three sub periods of the research span,a coastal reclamation is mainly focuses on an urban construction and a maritime transport in the later period while focuses on aquiculture in the earlier period;from the north to the south,the changes of continental coastline of China show significant temporal and spatial heterogeneity.