In this study, Supported by the technologies of remote sensing (RS) and geographical information system (GIS), we chose Ha-Da-Qi Industrial Corridor as a study area and analyzed the spatiotemporal patterns of land use change and the stability of land use types. Based on four land-cover type maps interpreted from remote sensing TM images of 1990, 1995, 2000 and 2005, combining buffer technology and gradient analysis, the dynamics and its gradient characteristics of Ha-Da-Qi Industrial Corridor was got. By analyzing the mutual transformation relations of different land use types in Ha-Da-Qi Industrial Corridor, we attempted to understand the stability and change tendency of different land cover types in our study area. The outcomes indicated that the cultivated land and residential area, which have close relationship with human activities, are the most stable land cover types. In contrast, grassland and marsh are the least stable land cover types. That is more attentions need to be paid to take effective measure to protect the unstable land cover types and balance the stability of the regional ecosystem development.
