RESUMO
Objective: To explore the application of 3S techniques to regional survey of Chinese materia medica resources, in order to provide technical reference for the fourth national survey of Chinese materia medica resources. Methods: Based on remote sensing technology, satellite positioning technology and GIS technology, GPS position indicator, SLR camera and related software such as Google Earth, HOLUX ez Tour for Logger and XTTools were used to establish the application model of 3S techniques for the regional survey of Chinese materia medica resources. Results: The application model established in field survey performed well in pathway expedition and sample plot survey. It also matched the digital images of Chinese herbs with their geographic information efficiently and did statistical analysis effectively on survey result. Conclusion: It is suggested that the application of 3S techniques to regional survey of Chinese meteria medica resources is beneficial to improve efficiency of the survey and obtain more accurate geographic information for sharing and dynamic monitoring.
