城镇用地扩张的遥感监测研究进展

The Research Progress on Monitoring of Urban Land Enlarge with Remote Sensing

快速的城镇化进程使得城镇用地不断扩大，这已成为我国耕地锐减的主要原因之一。加强城镇用地的动态监测，协调城镇发展与耕地占用之间的矛盾，正日益受到重视，其中运用遥感技术对城镇用地扩张进行监测研究，已成为该领域研究的核心内容。本文从遥感监测类型、技术支持手段、监测精度改进等方面对我国现阶段城镇用地扩张动态监测研究进行综述，对遥感监测的两种主要类型进行了分析比较，讨论了遥感技术与ＧＩＳ相结合的技术难点，探讨了提高监测精度的措施与途径。

One of the main causes of arable land decrease is rapid enlargement of urban land. More and more attention has been paid to monitoring of urban land enlargement. In this paper, the research progress on monitoring of urban land enlargement with remote sensing (RS) is analyzed from the points of RS monitoring types, supporting technology and the improvement of monitoring precision.