Study on Suitability Zoning of Astragalus membranaceus(Fisch.)Bge.var.mongholicus(Bge.)Hsiao in Shanxi Province Based on MaxEnt and ArcGIS
10.19879/j.cnki.1005-5304.202403157
- VernacularTitle:基于MaxEnt和ArcGIS的山西省蒙古黄芪适宜性区划研究
- Author:
Zihao XU
1
;
Lei HOU
;
Yanhui WU
;
Ziying LEI
;
Jun ZHANG
;
Miao WANG
;
Xiaobo ZHANG
;
Tingting SHI
;
Shuosheng ZHANG
;
Chenhui DU
;
Xiangping PEI
;
Runli HE
Author Information
1. 山西中医药大学中药与食品工程学院,山西 太原 030619
- Keywords:
Astragalus membranaceus(Fisch.)Bge.var.mongholicus(Bge.)Hsiao;
environmental factors;
suitability zoning;
MaxEnt model;
ArcGIS software
- From:
Chinese Journal of Information on Traditional Chinese Medicine
2024;31(9):1-7
- CountryChina
- Language:Chinese
-
Abstract:
Objective To grasp the main environmental factors affecting the growth of Astragalus membranaceus(Fisch.)Bge.var.mongholicus(Bge.)Hsiao;To predict the distribution of suitable areas of Astragalus membranaceus(Fisch.)Bge.var.mongholicus(Bge.)Hsiao in Shanxi Province;To provide references for the rational distribution of the resources in Shanxi Province.Methods This study utilized the sample point longitude and latitude information collected in the"Fourth Survey of Chinese Materia Medica Resources"database in Shanxi Province.The data were supplemented by searching the China Digital Herbarium and retrieving related literature records.347 sample points distribution data and environmental factors were added to the MaxEnt model.The main environmental factors and contribution rates affecting the geographical distribution of Astragalus membranaceus(Fisch.)Bge.var.mongholicus(Bge.)Hsiao were screened out.The ArcGIS software was used to divide the ecological suitable area of Astragalus membranaceus(Fisch.)Bge.var.mongholicus(Bge.)Hsiao in Shanxi Province.Results The area under the ROC curve of the established MaxEnt model was 0.909,indicating that the model prediction results were accurate.The model screened 19 environmental factors.Among them,climate factor was the most important environmental factor,followed by biological factor and topographic factor,and soil factor had the least influence.The potential suitable areas of Astragalus membranaceus(Fisch.)Bge.var.mongholicus(Bge.)Hsiao in Shanxi Province were mainly distributed in the northern mountainous areas,presenting a trend of gradually decreasing suitability levels from north to south.Under the current climate conditions,the most suitable area for Astragalus membranaceus(Fisch.)Bge.var.mongholicus(Bge.)Hsiao in Shanxi Province was 15 424 km2,the suitable area was 19 856 km2,the sub suitable area was 59 436 km2,and the unsuitable area was 61 894 km2.Conclusion Based on MaxEnt model and ArcGIS software,this study predicts the distribution of suitable areas of Astragalus membranaceus(Fisch.)Bge.var.mongholicus(Bge.)Hsiao in Shanxi Province,which has certain reference value for the protection and rational distribution of Astragalus membranaceus(Fisch.)Bge.var.mongholicus(Bge.)Hsiao resources in Shanxi Province.
