The Preliminary Research on Relationship between the Change of Land Use and Urbanization in Changsha from 2003 to 2013

It aims at revealing land use and land cover changes in Changsha from 2003 to 2013. Combining the regression analytical method with GIS and ENVI technology, based on the classification and interpretation of TM images in 2003, 2006,2009 and 2013, the changes of land use and relationship between land use change and urbanization response to the industrial structure evolvement are analyzed in this paper in the city of Changsha. It has used the area ratio of land use types, the land use dynamic index, the matrix of the change of land use types and the overall development of the urbanization level. The results show that the areas of land have changed obviously in Changsha City from 2003 to 2013. It presents following several characteristics: the areas of arable land have decreased steadily, but the reduce amplitude have declined; the areas of forest land firstly have increased and then reduced; The areas of building land had increased steadily, and the increase amplitude had extended. The forest land and arable land are changing into building land mostly mean while, the change of land use types is obvious at urban fringe; The number of change of land use types are correlating with the degree of urbanization linearly. The increase of urbanization will result in the reduce of agricultural land and the Increase of building land. There is positive feedback relationship among land urbanization,industry urbanization and population urbanization. The development of the relationship between the change of land use and the urbanization experiences three periods specifically, the early spread period of the city space, the accelerated expansion period of the city space and the rapid expansion period of the city space.