Application of handheld GPS to grassland resource investigation and mapping

Global Positioning System (GPS) is a much rapid development information technology system, and its application areas have transferred into the daily production and life from the initial highend military area. Application of GPS technology to grassland survey is the trend of digitization and informatization of grassland survey. This study introduced the application of the Trimble Juno SB handheld receiver in the process of grassland survey at the various stages, and summarized and generalized the technology and method in grassland investigation and mapping, which would provide the information for grassland resource investigation and mapping by GIS technology.