Analysis of Driving Force and Spatial Evolution of Changzhutan Megalopolis in Recent 20 Years

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.