RESUMO
Objective: Looking for the suitable areas of Lamiophlomis rotata based on 3S technology in Sichuan province to provide the basis for reasonable exploitation and protection of the L. rotata resource. Methods: By the ways of field researching and reviewing the related literature on L. rotata, to confirm its habitat characteristics. RS and GIS software was used to extract the environment factors such as climate, soil, topographic features, and community of L. rotata. The spatial overlay analysis on the various environmental factors were carried out to determine the distribution of L. rotata in Sichuan province. The area and combining with GPS was calculated to verify in field. Results: The result indicated that the suitable areas of L. rotata found by using 3S technology were generally consistent with the actual distribution of L. rotata. The suitable areas of L. rotata in Sichuan province were mainly distributed in 20 counties such as Aba country and Litang country. The total area of the suitable areas is about 135 200 hm2, accounting for 0.17% of the district area. Conclusion: Planting and protecting L. rotata in the suitable area will be benefit to the reasonable exploitation and protection of the L. rotata resource; This research method has the characteristics of scientificity and accuracy, which can be extended to other suitable area research of Chinese herbal medicine.