基于遥感与GIS技术的土地利用空间结构变化研究

 基于数字正射影像,运用遥感与GIS技术对广州市土地利用变化进行了宏观描述和微观定量分析研究。首先提取广州市土地利用变化信息,从总体上研究广州市各区的土地利用变化情况,然后利用土地利用类型转移模型,分析土地利用各类型之间的相互转化状况,构造土地利用的空间位置转换和数量变化模型对土地利用类型的空间位置转移进行定量评价,最后利用土地利用动态度模型来分析广州市土地利用的变化程度,并对变化的原因进行了评份。结果表明：广州市地类变化绝对量大,并以一级地类内部转换为主;耕地减少较快,可调整地类大幅度增多。

Research of Spatial Structure of Land Use Change Based on RS/GIS Technology

Based on DOM, remote sensing (RS) and GIS technology were used to conduct a macro description and micro quantitative analysis on the dynamic change of land use in Guangzhou city. Firstly, extract the information of land use change for finding a general landuse change in all districts of Guangzhou city; Secondly, use Land Use Types Transition model to analyze mutual conversions between various landuse types and build a Land Use Spatial Position Conversion model for quantitatively analyzing the land use type space position conversion; Finally, take the Land Use Dynamicity model to evaluate the land use change in Guangzhou.The results show that the absolute volume of land use type change is huge, the conversions within the first land use type predominate, farmland decreases relatively fast and adjustable land use type increases substantially. This research is useful for the rapidly developing urban land use.