党参药材分布区划研究

Study on distribution division of Codonopsis Radix

为了明确党参药材在我国的分布情况,寻找影响其分布的主要生态因子,该研究通过查阅文献、网络标本馆平台、实地调查等获取关于党参药材的分布信息。利用Max Ent模型和Arc GIS技术,综合55项环境因子,分析影响党参药材分布的主要环境因子,结果显示,降水量和海拔等对党参3个种的分布均产生主要影响。其中,党参主要集中在甘肃南部、陕西南部、山西南部、宁夏南部及吉林东南部;素花党参主要集中在甘肃南部、贵州西北部、四川东北部;川党参主要集中在湖北西部、重庆东部、四川中部。结合栽培党参药材分布信息,对所得党参药材的分布区划结果进行验证,研究所得分布与每种党参的实际分布相一致,为开展党参药材合理引种栽培提供了科学依据。

This paper is aimed to clarify the distribution of Codonopsis Radix in China and search the main ecological factors that affect the suitability distribution. Through literature reading,National Specimen Information Infrastructure researching,field investigation and general survey of Chinese medicine resources,the distribution information was acquired. The Max Ent model and Arc GIS technologywere applied to analyze the main environmental factors influencing the suitability of Codonopsis Radix with integrated 55 environmental factors. The results showed the precipitation and altitude were the major factors impacting the ecology suitable of Codonopsis Radix. The ecological suitable region of C. pilosula was mainly concentrated in south Gansu,Shanxi,Shanxi,Ningxia and,and the ecological suitable region of C. pilosula var. modesta was mainly concentrated in south Gansu,northwest Guizhou,northeast Sichuan,and the ecological suitable region of C. tangshen was mainly concentrated in west Hubei,east Chongqing,middle Sichuan. Combined with the investigation and cultivation of Codonopsis Radix distribution information,the results of ecological suitability of Codonopsis Radix were verified. The ecological suitability distribution result of Codonopsis Radix was consistent with each species actual distribution,which could provide scientific basis for carrying out the rational cultivation of Codonopsis Radix.