五十年代以来辽南地区土地利用/土地覆被变化及驱动机制分析

土地利用/土地覆被变化对区域发展研究具有重要意义,区域案例研究方法是土地利用/土地覆被变化的核心。以建国以来经济发展和土地利用/土地覆被变化都比较迅速的辽宁南部地区作为研究区域,重建并分析辽南地区自1954年以来三个时段的土地利用/土地覆被时空变化特征,在此基础上研究辽南地区土地利用变化的驱动机制。结果表明1954年到2000年期间,辽南地区的土地转换主要发生在耕地、林地和城乡居民点和工矿用地之间。农村工业化和城镇化是耕地变化的主要驱动力,城市建成区的扩展主要是经济水平提高和第三产业的发展等因素作用的结果,城市用地扩展以侵占耕地为代价。

Study on the Spatial Patterns of Land Use and Land Cover Change and Driving Forces in Southern Liaoning Since 1950's

Land use and land cover changes are key aspects of global environment changes.In a sense,it indicates the influence of human activities on natural environment.Region case study is the core of land use and land cover change.Taken Southern Liaoning region as an example,3 periods of land use and land cover patterns are reconstructedand temporal and spatial changes are also during 1954 to 2000 are also analyzed.The land use and land cover change's driving mechanisms are studied on the base of these.The results show that the land transformation is chiefly occurred among farmland,woodland and urbanland.Industrializationand urbanization of rural area isthe major driving forces for farmland change,and the extension of the built up area in the city chiefly is the result of economic standard risingand the development of tertiary industry etc,which is at expense of farmland.