中国中医药信息杂志2025，Vol.32Issue(10)：7-13,7.DOI:10.19879/j.cnki.1005-5304.202412427
藏药"直达萨曾"潜在适生区地理分布格局模拟及影响因素分析
Simulation of Potential Suitable Habitats for the Tibetan Medicine"Zhi Da Sa Zeng"and Analysis on Influencing Factors
摘要
Abstract
Objective To investigate the spatial distribution patterns and environmental determinants of Lagotis brachystachya Maxim.,a keystone species in Tibetan medicine("Zhi Da Sa Zeng"),under contemporary climatic conditions in China;To provide references for the sustainable utilization of its resources and the ecological protection of alpine grassland areas.Methods Based on the maximum entropy model,the selected species distribution data and environmental factors were added to MaxEnt 4.3.1 software for modeling.The geographical detector was applied to quantify the factors influencing the spatial differentiation of the suitable areas,employing both factor detection and interaction detection functionalities.Additionally,an overlay analysis with land cover types was conducted to quantify the distribution characteristics of grassland within the potential suitable areas for Lagotis brachystachya Maxim..Results Under the current climatic conditions,dominant environmental drivers included elevation,monthly average temperature difference between day and night,average precipitation in June,wind speed in September,solar radiation in August,average precipitation in May,average precipitation in October,among which elevation demonstrated the strongest explanatory power(q=0.37)in habitat suitability analysis.The model prediction results showed that the potential suitable area for Lagotis brachystachya Maxim.was 5.31×105 km2.Considering the type of surface coverage,the main suitable habitat for Lagotis brachystachya Maxim.was grassland,with an area of 4.34×105 km2.The high suitable grassland of areas were mainly distributed in Qinghai Province(Yushu Tibetan Autonomous Prefecture,Huangnan Tibetan Autonomous Prefecture,Golog Tibetan Autonomous Prefecture,Hainan Tibetan Autonomous Prefecture,Haibei Tibetan Autonomous Prefecture),Sichuan Province(Ganzi Tibetan Autonomous Prefecture,Aba Qiang Autonomous Prefecture),Xizang Autonomous Region(Naqu City,Shigatse City,Changdu City),and Gansu Province(Gannan Tibetan Autonomous Prefecture).Conclusion This study can provide references for the protection of wild resources and the selection of domestication and cultivation areas for Lagotis brachystachya Maxim..关键词
短穗兔耳草/最大熵模型/地理探测器/潜在地理分布/影响因素Key words
Lagotis brachystachya Maxim./MaxEnt model/geographical detector/potential geographical distribution/influencing factors分类
医药卫生引用本文复制引用
徐智玮,郭旭东,马晓辉,贾守宁,沈建武,晋玲..藏药"直达萨曾"潜在适生区地理分布格局模拟及影响因素分析[J].中国中医药信息杂志,2025,32(10):7-13,7.基金项目
青海省科技厅软科学课题(2025-ZJ-601) （2025-ZJ-601）
