| Abstract:Objective: To predict the ecological suitability zoning of the rare herb Saussurea medusa Maxim in The Qinghai-Tibet Plateau；To screen the main ecological factors affecting its growth and distribution；And provide reference for the protection of wild resources of S.medusa Maxim and the site selection of introduction and domestication.Methods: Sample information of distribution of S.medusa Maxim in China was collected. The main ecological factors affecting the distribution of S.medusa Maxim were analyzed by MaxEnt model and geographic information system software, and the ecological suitability areas were predicted. Results: The main ecological factors affecting the growth and development of S.medusa Maxim were altitude,precipitation in May,main vegetation types ,driest month precipitation, average temperature in December,main soil type,gradient,average temperature in February.The suitable growth areas were mainly distributed in northwest Sichuan, southwest and northwest Gansu, south and northeast Qinghai, northeast Xizang.Conclusion: The results of this study can provide reference for the selection of cultivated areas and the protection of wild resources of S. medusa Maxim. |
