应用遥感技术辅助更新县级土地利用基础图件的方法研究  

Study on the Method of Updating County- Level LanduseBase- Map Using Remote Sensing Technology

作　　者：张正福[1] 

机构地区：[1]甘肃省国土资源规划研究院,甘肃兰州730000

出　　处：《遥感技术与应用》2002年第6期381-384,共4页Remote Sensing Technology and Application

摘　　要：以甘肃省平凉市四十里铺镇为例 ,研究利用 TM和 SPOT图像数据辅助更新县级土地利用基础图件的方法。将遥感影像、土地详查矢量数据、计算机辅助发现的变化图斑在同一坐标空间进行栅格矢量的混合叠置 ,然后进行人机交互提取变化信息 ,建立变化图斑层的拓扑关系。在 GIS的支持下 ,修改编辑变化图斑层 ,建立完整的拓扑关系 ,并利用 GIS的矢量叠加功能 ,将变化图斑层与详查数据库进行叠加运算 ,生成新的土地利用数据库文件。According to an example, this paper introduces a technical procedure to update the base map of landuse. First, some raster and vector data (such as remote sensing images, landuse investigation vector data, and changed map patches obtained by computer assistant tool) were overlapped in a same layer. Then, the various information were retrieved in the interaction process, and topology relations were set up based on the changed map patches layer. Supported by the GIS, changed map patches layer was modified and compiled, and the topology relations were built. Finally, using the GIS vector overlay function, the changed map patches layer was overlapped and calculated with detailed database to create the landuse database files.

关 键 词：遥感 土地利用 变更调查 图件更新 耕地 计算机 GIS 

分 类 号：F301.2[经济管理—产业经济] TP79[自动化与计算机技术—检测技术与自动化装置]