Spatial calculating analysis model research of land-use change in urban fringe districts

The spatial calculating analysis model is based on GIS overlay. It compartmentalizes the research district land into three spatial parts: unchanged part, converted part and increased part. By this method we can evaluate the numerical model and dynamic degree model for existing calculating changing speed of land-use. Furthermore the paper raises reviving the calculating analysis model of spatial information in order to predict the dynamic changing level of all sorts of land. More concretely speaking, the model is mainly to know the changing area and changing speed (increased or decreased) of different land classifications from the microcosmic angle and to clearly show the spatial distribution and spatio-temporal law for changing urban lands. We discover why the situation has taken place by combining social and economic conditions. The result indicates that the calculating analysis model of spatial information can derive more accurate procedure of spatial transference and increase of all kinds of land from the microcosmic angle. By this model and technology, we can make the research of spatio-temporal structure evolution in land-use be more systematical and deeper. The result will benefit the planning management of urban land-use of developed districts in China in the future.