基于地理国情普查数据的土地利用变化分析——以东莞市为例

地理国情普查成果的应用是地理国情普查的重要任务之一。本文以东莞市1999、2003、2008年以及2013年的地理国情普查数据为基础,利用土地利用动态度、土地利用程度综合指数等模型,对东莞市建成区14年间的土地利用动态变化进行分析。研究结果表明:1999~2013年间东莞市农业生产用地和生态用地面积大量减少,城乡建设用地面积大幅增加,以耕地和构筑物的面积变化最为活跃,研究后期土地利用动态度呈现减缓趋势;1999、2003、2008年以及2013年东莞市建成区内土地利用程度综合指数分别为:309.23、332.39、350.15、357.94。土地利用总体处于发展阶段。

Analysis of Land-use Change Based on National Geographical Conditions Census Data: A Case Study of Dongguan City

The application of the results of National Geographical Conditions Census is one of the important tasks.Using the models of the land-use dynamic degree, the comprehensive index of land-use degree, this article analyzed the land-use change of Dongguan city during the 14 years on the basis of the data of National Geographical Conditions Census in 1999,2003,2008 and 2013.The findings indicate: agriculture production land and ecological land area largely decreased;rural-urban construction land area has been showing growth;the change in cultivated land and structures was the biggest;the dynamic degree of land use showed a trend of slowing down in the late stage of study between 1999 and 2013;in 1999, 2003, 2008 and 2013, the comprehensive index of land-use degree were 309.23, 332.39, 350.15, 357.94 in Dongguan city, respectively, which showed that land-use was in the stage of development.