GPS和GIS进行短期沟蚀研究初探——以东北漫川漫岗黑土区为例

Preliminary Research on Short-term Channel Erosion Using GPS and GIS

随着现代技术发展,利用GPS野外数据采集,结合DEM的生成来研究切沟侵蚀得到愈来愈广泛的应用。复杂的地形地貌对DEM的生成有着特殊的要求,以Arc/Info为工作平台对DEM的建立进行了概括,同时结合数次野外GPS采样实践以及DEM的生成要求,对GPS的野外应用进行了初步探讨。

Based on the development of modern technology, there is more and more application of GPS with the building of DEM on the research of gully erosion. The researches on gully erosion reflect the deeper understanding of erosion on the spatial scale. Complex morphology and topography have some special requirements on the building of DEM. This paper sums up the building of DEM, in which Arc/info is treated as the working platform. Meanwhile, combined with GPS sampling points in field and requirement of DEM building, preliminary discussion is performed on the application of GPS in field.