关键词: 中药资源, 样地调查, Google Earth, 智能手机, GPS定位

Abstract: The areas for resource survey are often the specific areas randomly-generated from the resource information system. These areas are always located in the remote places and make the field survey work time-consuming and inaccuracy by using the common position system. In addition, the road and the environment around the survey sites are always unavailable until the investigator get there. In this paper we transformed the GPS information of survey area into the landmark file and imported it into the Google Earth application in the cellphone. As a result, the survey areas can be accurately and real-time searched in the cellphone. In addition, the road and the environment around the survey sites can be shown on the cellphone screen. Therefore, we provide a convenience, efficient and visual position system for the field investigation of resource survey.

Key words: materia medica resource, plot survey, Google Earth, smart phone, GPS position