基于RS和GIS的珠江三角洲土地利用动态分析

以广东省珠江三角洲2003年、2007年卫星影像为数据源,结合部分外业调查数据,用土地利用变化模型和方法对珠江三角洲土地的变化幅度、动态度和变化程度等进行分析。结果表明:2007年珠江三角洲主要地类是有林地和农业用地;2003—2007年间,珠江三角洲土地利用动态转化以有林地、农业用地和其它用地转化为建筑用地,有林地和其它用地转化为灌木林地为主,并且存在明显的区域差异性。

Analysis on Dynamic Changes of Land Types and Stands in Pearl River Delta Based on RS and GIS

In this study,satellite images of the Pearl River Delta in 2003 and 2007 were used as data sources and combined with parts of outside survey data.The model and method were used for the land use change analysis of the Pearl River Delta.The results show that in 2007 the primary land types in Pearl River Delta were forest land and agricultural land.Between 2003 and 2007,land type transformation among forest land,agricultural land and other land occurred including forest land,agricultural land and other land used for building land and forest land and other land for shrub land,which shows obvious regional difference.