基于MaxEnt模型和ArcGIS的红芪生境适宜性评价  

MaxEnt model-ArcGIS-based evaluation of habitat suitability of Hedysari Radix

作　　者：林鑫 李成义[1] 魏小成 周瑞娟[1] 张广袤 谢耀慧 谭雪艳 刘善茹 LIN Xin;LI Cheng-yi;WEI Xiao-cheng;ZHOU Rui-juan;ZHANG Guang-mao;XIE Yao-hui;TAN Xue-yan;LIU Shan-ru(Gansu University of Chinese Medicine,Lanzhou 730000,China)

机构地区：[1]甘肃中医药大学,甘肃兰州730000

出　　处：《中成药》2023年第12期4005-4010,共6页Chinese Traditional Patent Medicine

基　　金：国家自然科学基金地区基金(81860683,82160730);国家自然科学青年基金(82104345);甘肃省教育厅双一流重大科研项目(GSSYLXM-05);甘肃省科技计划项目(21YF5FA133)。

摘　　要：目的基于MaxEnt模型和ArcGIS评价红芪生境适宜性。方法运用MaxEnt模型筛选影响红芪分布的生态因子,建立评价模型,利用ArcGIS软件评价红芪生态适宜性,得到全国红芪生境的高度适生区、中度适生区、低度适生区、非适生区。结果红芪在我国的适生区面积为1.29×10^(6)km^(2),其中高度适生区面积为5×10^(4)km^(2),中度适生区面积为3.38×10^(5)km^(2),低度适生区面积为9×10^(5)km^(2),在生境适宜区占比分别为4.03%、26.20%、69.77%,高度适生区主要分布于甘肃省。影响红芪分布的主要生态因子为海拔、最热季度降水量、9月和12月太阳辐射量、温度季节性变化偏差和上层土壤(0~30 cm)基本饱和度。结论本研究结果与文献记载相吻合,可为红芪引种栽培及资源可持续利用提供理论依据。AIM To evaluate the habitat suitability of Hedysari Radix based on MaxEnt model and ArcGIS.METHODS Using the MaxEnt model to screen the ecological factors affecting the distribution of Hedysari Radix,an evaluation model was thus established.ArcGIS software was used to evaluate the ecological suitability of Hedysari Radix to obtain the data about the highly suitable area,the moderate suitable area,the low suitable area and non⁃suitable area for its growth in China.RESULTS Hedysari Radix found its 1.29×10^(6)km^(2)suitable area in China,among which the highly suitable area was 5×10^(4)km^(2),mainly in Gansu Province,the moderately suitable area was 3.38×10^(5)km^(2),and the low⁃suitable area was 9×10^(5)km^(2),occupying 4.03%,26.20%and 69.77%of all,respectively.The main ecological factors affecting the distribution of Hedysari Radix were determined to be altitude,precipitation in the hottest quarter,solar radiation in September and December,seasonal temperature variation deviation and basic saturation of upper soil(0-30 cm).CONCLUSION With its result complying well with the literature records,this study provides theoretical basis for the introduction and cultivation of Hedysari Radix,and sustainable utilization of resources as well.

关 键 词：红芪 MaxEnt模型 ARCGIS 生态因子 适宜性评价 

分 类 号：R282[医药卫生—中药学]