Spatial-Temporal Variation of Lucc in Zhoushan From 1985 to 2015 Using Remote Sensing Images

Land use/land cover change (LUCC) is the most direct manifestation of the interaction between human activities and the natural environment, which is of great significance to regional development, environmental change, and resource bearing capacity. As the first prefecture-level city in China that established by islands, the spatial-temporal variation of LUCC in Zhoushan City was analyzed by classification of Landsat images from 1985 to 2015. The results showed that: (1) Construction land expanded rapidly along the coastal plains, the area increased about 5 times mainly by developing cropland and reclaiming land from sea and tidal flat; (2) By reclaiming land from sea, there are different degrees of expansion along the coastline of various islands, 37.99 km2 new land was obtained and nearly half of the land has been developed into construction land. (3) The area of cropland decreased significantly due to the occupation of construction land while the forest is well protected which has increased slightly in area.