盘锦市土地利用/土地覆被变化及驱动力研究

本文以土地利用详查资料和遥感影像资料为主要信息源,在GIS支持下研究了盘锦市1988-2005年问土地利用/土地覆被变化,分析了土地利用变化速率和程度,阐明了耕地变化的驱动因素.研究结果表明,1988-2005年的17年间盘锦市城市规模迅速扩张,城乡工矿居住用地增加了0.55万hm2;同时耕地增加了7.21万hm2,但这主要是以林地、草地和湿地的急剧减少为代价,对当地生态环境和可持续发展造成潜在威胁.研究结果表明.1988-2005年的17年间盘锦市草地和林地的动态指数变化最大,动态度指数分别达到-5.62%和-5.42%;盘锦市土地利_用程度较高,土地利用程度综合指数由1988年的245.51提高到2005年的292.79,高于全国平均水平的231,92.研究认为,经济发展、人口增长和政府政策是影响盘锦市土地利用/土地覆被变化的主要驱动力.

Study on Land Use / Land Cover Changes and Driving Forces in Panjin City

Based on detailed investigation information of land-use and remote sensing image data as the main source of information and in the support of GIS,the land use / land cover changes from 1988 to 2005 in Panjin City were studied in the paper.At the same time,land-use change rate,land-use intensity,and the driving force of arable land change were analyzed.The results showed that the city size of Panjin was rapidly expanded in the past 17 years.The areas of industrial land for urban and rural increased by 5500 h...