Research of Spatial Structure of Land-use Change Based on RS and GIS Technology

摘要

Based on DOM, we use remote sensing (RS) and GIS technology to conduct a macro-description and micro-quantitative analysis research on the dynamic change of Guangzhou City's land-use. We first of all extract the information of Guangzhou City's land-use change, study on a general scale the situations of land-use change in all districts of Guangzhou City, and build a model related to the dynamic change of land-use. Then we analyze the mutual conversions between each land-use type and try to find out the reasons for the conversions. The results show that: The absolute volume of Guangzhou City's land-use type change is huge, in which conversions within the first land-use type predominate; the farmland decrease relatively fast and adjustable land-use type increase substantially. This paper offers some reference to the rapidly-developing urban land-use.