Study on the impact of coastal land use change on environment based on remote sensing data

The coastal zone is the bridge between ocean and mainland, junction of two ecosystems, focus economic development cities gathering place ports. Remote sensing technology uses detector to receive electromagnetic wave from target object. After processing information, it can distinguish attributes It widely used in marine development, aerospace understanding, resource exploration other fields.In this paper, Shangyu Economic Development Zone on south coast Hangzhou Bay taken as research area. Using multi-source remote data, information extraction, change monitoring analysis are carried out perspective land impact discussed. main conclusions follows: (a) visual interpretation method, found that coastline study area changes obviously, decrease trend below total length; Fractal dimension index characterize natural condition coastline. length, artificial all increase, which means amount beach sediment deposition degree intervention have increased stage. (b) object-oriented method extract use classification Cultivated type area, impervious surface fastest growing. whole gradually increasing, greatly reduced, increased. Wetland most dramatic period. mainly transformed into features, while features.