The core of Changzhutan Megalopolis region was the research object in this paper. Based on the source data of multitemporal RS image and Used by the method of RS&GIS analysis technology, the author analyzed driving Force and spatial evolution of Changzhutan Megalopolis in Recent 20 Years Results show that Chang-zhu-tan Megalopolis land area expanded nearly 2 times, especially after 2007 developed more and more fast More and more construction land focus on the center of Chang-zhu-tan Megalopolis. Urban expansion force major ask now of economic development and the increase of population, and two type society.
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