GPS技术在数字流域建设中的作用

The role of GPS technology on constructing digital watershed

数字化管理是 2 1世纪信息管理的主要方式 ,建设数字流域将成为流域土壤侵蚀、土地利用变化动态监测、定量分析及土地规划等在精度和效率上的突破口 .本文详细介绍了应用 GPS技术在黄土高原复杂地形条件下进行三维空间定位的技术要领 ,并对其精度。

Digitalized management has to be the main management way in 21 century.Building digital watershed will be the key of improving precision and effciency on dynamic inspection and analysis of soil erosion and land-use change and land planning etc.In this paper,the key methods of 3-dimension positioning by GPS were introduced,and its roles and significance in construction of digital watershed were analyzed and discussed.