Potential Geographical Distribution and Habitat Characteristics of Rheum tanguticum
Objective:To understand the current situation of suitable habitat of Rheum tanguticum and predict its potential geo-graphical distribution.Methods:Based on the field survey data of the fourth national survey of traditional Chinese medicine(TCM)and 55 related ecological factors(including climate,terrain,soil,etc.)of Rheum tanguticum obtained from the spatial information grid data-base of TCM resources,the MaxEnt model and ArcGIS were used to predict the potential geographical distribution and habitat character-istics of Rheum tanguticum in China.Results:The suitable distribution areas of Rheum tanguticum were mainly located in western Sichuan plateau,Gannan plateau,eastern Qinghai and eastern Tibet,among which the most suitable distribution areas were eastern Qing-hai,western Sichuan plateau and Gannan plateau.the altitude,vegetation type,average temperature in June,average precipitation in April and soil type were the main ecological factors affecting the potential distribution of Rheum tanguticum,and there were some differ-ences in different distribution regions.Conclusion:The results of this study lay a necessary foundation for the follow-up research on eco-logical sensitivity and production zoning of Rheum tanguticum.
国家科技期刊平台
NSTL
万方数据
