Based On RS And GIS To Analyze The Spatiotemporal Variation Of Land Use And Land Cover

Land Use and Land cover change has become a hot spot for research, because it is both the reason and the result of global change. The Acquisition to data of land use and land cover is basic work to LUCC research. Followed by fast development of remote sensing technology, it has become an inevitable step for LUCC research to acquire to the thematic information of land use and land cover through remote sensing image. Global environment change influences people's inhabitation environment (landscape) in local and region scale, and people's activities change local land cover and landscape patterns by difference ways in use, moreover this impels global environment change. So, analyzing local landscape patterns can make help to research the global environment change.Take the suburbia of Zhengzhou city as research area, Based on the RS image in 1988,1997&2002,Then the features of urban land use growth in Zhengzhou city were analyzed, which includes the features of temporal process and spatial pattern of every land use type growth by geography information system and remote sensing in Zhengzhou. Using the landscape analysis program Fragatats 3.3 to analyze the landscape indices. And the infections of urbanization on Pedodiversity were analyzed. The results indicated that:(l) In the inverse proportion of amount, during 1988 to2002; it has a great change in the land use types of the Suburbia of Zhengzhou City. The primary exhibitions are the increase in the land-use type residential area and industrial estate and the land-use type city and traffic, the land-use type infield and other types decrease. 1988-1997, the land-use type which has changed can catch to 30.5% in total acreage, 1997-2002, the land-use type which has changed can catch to 33.37% in total acreage. (2) The transfers between every land-use type in space are also very exquisite, the transfers mostly happen around the central city. The land-use type infield changes into land-use type city and traffic and the land-use type residential area and industrial estate changes into land-use type city and traffic from distance to demonstrate. In the area where far...