郑州市土地资源动态变化的遥感监测与分析

Remote Sensing Monitoring and Analysis of Land Resources Transformation in Zhengzhou

20余年来郑州市的土地利用变化剧烈,对其进行研究具有重要意义。选取郑州市1988年和2009年美国地球资源卫星的专题制图仪传感器数据,使用监督分类法进行土地利用分类,统计并分析了土地资源利用的变化趋势。研究结果表明:1988年至2009年,郑州市各土地利用类型间,"城镇建筑用地"和"交通运输用地"增长幅度最大,分别为183.40%和123.39%,"其他用地"减少幅度最大,为90.99%,郑州市"水体"总量变化不大,但其空间分布格局发生较大变化。城市化进程的高速推进是郑州市土地利用发生变化的最主要原因。

The land use patterns in the past 20 years had changed significantly and researches of this phenomenon were very important for Zhengzhou.The thematic mapper images from USA Landsat in 1988 and 2009 of Zhengzhou were chosen.The supervised land use classification method was used for analyzing the trends of land resources using.The results showed that the land use types of ‘urban construction land’ and ‘transportation land’ have the largest growth rate which are 183.40% and 123.39% respectively.On the contrary,the land use type ‘other land’ has the largest decrease rate 90.99%.The total amount of land use type ‘water’ in Zhengzhou has little change but its spatial distribution pattern has changed greatly.The most important reason of the land use variation in Zhengzhou is the urbanization process.