基于3S集成技术的土壤侵蚀图野外校核

Field Check of Soil Erosion Map of Jiangxi Province Based on the 3S Technology

本文实现了基于3S集成技术的土壤侵蚀图野外校核,即以越野车为平台,应用GPS实时定位技术,在GIS桌面系统的支持下,借助遥感图像开展野外调查。该方法定位快速、准确,实现了行进途中的不间断工作,并将调查结果以全数字格式存储,方便后续工作,且可适应点、线和面等不同类型的野外调查,因而具有很强的适应性和可扩展性。该方法对土壤调查以及其他野外工作具有较高的应用价值。

A new method that applies the 3S (integrated GPS, RS and GIS) technology was developed for the field check of soil erosion map. Land cruiser and some other hardwares were used as the working platform to obtain and integrate the real-time GPS data with the 3S satellite images and the soil erosion map by using ArcMap software system. The method was proved more efficient and accurate than the traditional inventory method, it could realize an uninterrupted inventory along the road and record field data in a digital form, which is convenient for later use. Furthermore, the method was adaptive to point, line-transect and plot surveys, thus it could be applied well to other kinds of soil survey activities.