江西省土地利用动态变化研究

Study on Dynamic Changes of Land Use in Jiangxi Province

利用不同时相的遥感影像解译成果数据,在地理信息系统软件支持下,分析江西省土地利用时空格局、土地利用类型的变化趋势及其变化速率等.研究结果表明,自1986—2005年近20年来,江西省的主要土地利用类型为林地和耕地;研究期内,工矿居民点用地、林地和水域面积增加,而耕地、草地和未利用地面积减少;工矿居民点用地增加来源主要为耕地,林地来源主要为草地,水域来源主要为未利用地;从土地利用稳定性来看,上饶市和萍乡市的土地利用相对不稳定.

With the data derived from three periods（ 1986, 2000, 2005） RS images, the paper analyzes the changes of quantities, location and dynamic degree of land use based on geographical information system. The result shows, from 1986 to 2005, woodland and farmland account for the main land use in Jiangxi province, the area of construction, woodland and water has increased farmland, grass land and unused land area decreased, and the land use has relatively fluctuated in Shangrao and Pingxiang cities.