探讨其成功的原因，作者认为，成功的动态定位管理是其中最重要的原因之一。
As for the reason why it succeeded, the author argues that one of the most important reason was its successful dynamic positioning management.
依靠GPS对空间数据快速定位，RS数据发现土地动态变化区域，再利用GIS平台进行空间数据组织、管理、分析与可视化。
GPS locates positions quickly, RS finds the dynamic change areas, then the data of RS and GPS are organized by GIS.
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