Simulation of Potential Suitable Habitats for the Rare Tibetan Medicinal Plant Sinopodophyllum hexandrum and Analysis in Influencing Factors Based on the Maximum Entropy Model and Geographic Detector
10.19879/j.cnki.1005-5304.202407098
- VernacularTitle:基于最大熵模型和地理探测器的我国珍稀藏药桃儿七潜在适生区模拟及影响因素分析
- Author:
Shaoyang XI
1
;
Fei CHEN
;
Huaqian GONG
;
Gonghan TU
;
Xudong GUO
;
Li LIU
;
Ling JIN
Author Information
1. 甘肃中医药大学,甘肃 兰州 730000
- Publication Type:Journal Article
- Keywords:
Sinopodophyllum hexandrum;
maximum entropy model;
geographic detector;
potential geographic distribution;
influencing factors
- From:
Chinese Journal of Information on Traditional Chinese Medicine
2025;32(7):1-6
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the spatial distribution pattern of the potential suitable habitats for the Tibetan medicinal plant Sinopodophyllum hexandrum under current climatic conditions and the factors influencing the spatial differentiation of the habitats.Methods Based on the maximum entropy model,a species distribution model was established using selected species distribution data and environmental variable data.The geographic detector and the interaction detector were applied to quantify the factors affecting the spatial differentiation of the suitable area.By overlaying the suitable area with land cover types,the distribution characteristics of potential arable land and forest land within the potential suitable area were quantified.Results Under the current climatic conditions,altitude,precipitation in July,precipitation during the warmest season,water vapor pressure in June,precipitation in December,and the highest temperature in February are the key environmental factors affecting the distribution of Sinopodophyllum hexandrum.Under the current climatic conditions,the potential geographical distribution range of Sinopodophyllum hexandrum covers an area of 1.30×106 km2.Considering land cover types,the actual suitable area for Sinopodophyllum hexandrum is 6.13×105 km2,including 4.25×105 km2 of forest land and 1.88×105 km2 of arable land.The highly suitable forest areas are mainly distributed in the Aba Tibetan and Qiang Autonomous Prefecture,Ganzi Tibetan Autonomous Prefecture of Sichuan Province,Diqing Tibetan Autonomous Prefecture,Nujiang Lisu Autonomous Prefecture of Yunnan Province and Linzhi City within the Tibet Autonomous Region.The highly suitable arable land areas are mainly distributed in the Linxia Hui Autonomous Prefecture,Dingxi City,Tianshui City,and Longnan City of Gansu Province,with sporadic belt-like distributions in Sichuan Province,Yunnan Province and the Tibet Autonomous Region.Conclusion The study can provide evidence for the protection of wild Sinopodophyllum hexandrum resources and the selection of optimal planting areas.
