Dynamic of Ecological Land Use Change During 30 Years in Binhai New District,Tianjin
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Abstract:
Based on the remote sensing TM images in 1979 and 2004 and the SPOT image in 2009 ,as well as relevant information, the study use the visual inter- pretation to obtain the information of utilizing the land of Binhai New District and analyzes the integrated characteristic of the ecological land ,the changing characteristics between ecological land and non-ecological land, as well as the driving factors. The results showed that from 1979 to 2009,the area of total ecological land decreased, before and after 2004,56424.74hm2 and 8874.35hm2 ecological land were separately translated to farmland and construction land ,the ratio of forest and urban green land is low, the beach was largely translated to brine,part of sea area was translated to beach, the driving factors were responsible for the land use change include natual factor,urban sprawl and economic factors.
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