中药材2024，Vol.47Issue(12)：3001-3005,5.DOI:10.13863/j.issn1001-4454.2024.12.010
平贝母适宜分布区变化动态及影响因素的研究
Study on the Change Dynamics and Influencing Factors of Suitable Distribution Area of Fritillaria usuriensis
摘要
Abstract
Objective:To understand the distribution characteristics and trends of Fritillaria usuriensis and analyze the major envi-ronmental factors affecting its wild resources,so as to provide reference for the conservation of Fritillaria usuriensis resources and the lo-cation of artificial planting.Methods:Using the optimized MaxEnt model,the distribution sites and environment variables were analyzed to simulate the distribution range of the suitable areas of Fritillaria usuriensis under historical,contemporary and future climate scenari-os.Results:The estimated AUC value was 0.991,indicating that MaxEnt had good prediction value.The total suitable area of the mod-ern Fritillaria usuriensis was 797 600 km2,and the most suitable area was 315 300 km2,which was mainly located in the vicinity of the Lesser Khingan Mountains,Changbai Mountains and Wusuli River.Under different climate scenarios in the future,the mast suitable are-as of Fritillaria usuriensis showed a trend of expansion.The main environmental factors affecting the distribution of Fritillaria usuriensis were the precipitation in the warmest season,the standard deviation of the seasonal change of temperature,the seasonal variation coeffi-cient of precipitation and the average temperature in the coldest season,and the cumulative contribution rate of the four environmental factors reached 89%.Conclusion:It is suggested that special investigation should be carried out on the wild Fritillaria usuriensis re-sources in the most suitable areas in the future,and more efforts should be made with in situ protection,and artificial cultivation of au-thentic medicinal materials should be promoted in the most suitable areas to ensure the sustainable utilization of medicinal resources of Fritillaria usuriensis.关键词
平贝母/最大熵模型/全球气候变化/适生区分布Key words
Fritillaria usuriensis Maxim./MaxEnt/Global climate change/Habitat distribution分类
中医学引用本文复制引用
谷函泽,王其然,董文光,梁铁双,沐先运..平贝母适宜分布区变化动态及影响因素的研究[J].中药材,2024,47(12):3001-3005,5.基金项目
北京市自然科学基金面上项目(5242014) （5242014）
北京林业大学大学生创新创业训练项目(S202310022216) （S202310022216）
