Prediction Study on the Potential Suitable Habitats of Gastrodiae Rhizoma Based on MaxEnt Model and Geodetector
10.19879/j.cnki.1005-5304.202407139
- VernacularTitle:基于最大熵模型和地理探测器的天麻潜在适生区预测研究
- Author:
Shaoyang XI
1
;
Huaqian GONG
;
Gonghan TU
;
Fei CHEN
;
Xudong GUO
;
Ling JIN
Author Information
1. 甘肃中医药大学,甘肃 兰州 730000
- Publication Type:Journal Article
- Keywords:
Gastrodiae Rhizoma;
MaxEnt model;
geodetector;
potential geographic distribution;
influencing factors
- From:
Chinese Journal of Information on Traditional Chinese Medicine
2025;32(4):1-6
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the spatial distribution pattern of potential suitable habitats and the influencing factors of habitat spatial differentiation of Gastrodiae Rhizoma under current climate conditions.Methods Based on 137 distribution records of Gastrodiae Rhizoma sourced from the Global Biodiversity Information Facility and 104 environmental variables acquired from the WorldClim dataset,a predictive model for the potential suitable habitat of Gastrodiae Rhizoma was developed using the MaxEnt model.The geodetector was applied to quantitatively analyze the environmental factors influencing the spatial heterogeneity of the suitable habitats.Subsequently,an overlay analysis with land cover types was conducted to obtain the distribution characteristics of forest land and cultivated land in the potential suitable habitats.Results Under current climate conditions,key environmental factors affecting the distribution of Gastrodiae Rhizoma included precipitation in July,average temperature in the coldest quarter,precipitation in the warmest quarter,water vapor pressure in September,altitude,and solar radiation in December.The potential geographical distribution range of Gastrodiae Rhizoma was 1.64×106 km2.Considering land cover types,the actual potential suitable area for Gastrodiae Rhizoma was 1.33×106 km2,of which the forest land area was 8.56×105 km2 and the cultivated land area was 4.74×105 km2.The highly suitable forest areas were mainly located within the provinces of Guizhou,Sichuan,Shaanxi,Hubei,Hunan and Gansu.The cultivated land suitable areas are mainly located within the provinces of Guizhou,Sichuan,Yunnan,Shaanxi and Hubei.Conclusion The highly suitable habitats of Gastrodiae Rhizoma are mainly located in provinces such as Guizhou,Sichuan,Shaanxi and Hubei,and are affected by factors such as solar radiation,water vapor pressure,temperature and precipitation.The research results can provide reference for the protection of wild Gastrodiae Rhizoma resources,artificial nurturing and optimal selection of ecological planting areas.
