以南昌市为研究对象,利用南昌市2000、2005和2011年土地利用基础数据为数据源,运用景观生态学原理,借助RS和GIS技术,建立景观类型与土地利用类型的对应关系。该文将南昌市景观划分为耕地、林地、草地、水体、建筑用地和未利用地景观6种类型,并运用ARCGIS软件制作2000、2005和2011年南昌市景观分类图。应用Fragstats软件计算景观格局指数,利用GIS的空间分析功能,对南昌市景观格局及其变化特征进行分析。结果表明:南昌市景观格局从2000年到2011年间发生了较大的变化,耕地、建筑用地显著增加,草地减少,景观多样性和景观均匀度都呈增加趋势。该研究结果有助于解决南昌市急速发展所带来的一些生态和环境问题,以及通过土地利用规划来改善南昌市的可持续发展。
With Nanchang City, Jiangxi Province as the research object and using basic data of land use in Nanchang in 2000, 2005 and 2011, based on the theory of landscape ecology and the technology of remote sensing and GIS, the correspondence between landscape types and land use types is established. The landscape classification maps are obtained in 2000, 2005 and 2011 with ARCGIS software by classifying 6 landscape types into cultivated land, woodland, grass, water body, building land and unutilized land. By use of the spatial analysis function of GIS, the urban landscape pattern and its change feature are analyzed with the help of the landscape indices calculated. Results showed that the landscape pattern in Nanchang changed greatly from 2000 to 2011, with an increase of area of cultivated land and building land, decrease of grassland, as well as increase of urban landscape diversity and evenness index. The findings would provide useful information for dealing with ecological and environmental problems induced by rapid urbanization, and for sustainable developmenL Further studies are needed to investigate the process and mechanisms of how urbanization affects biodiversity and ecosystem services in the City.