李云峰 何平 孟繁蘊



淫羊藿(Epimedium brevicornu Maxim.)作為野生藥材,品質受到自然環境的影響.為研究淫羊藿品質變化趨勢,本研究選取甘肅省南部洮河流域內淫羊藿為研究對象,以淫羊藿苷含量為淫羊藿品質標準,運用MaxEnt模型和地理信息技術,對影響淫羊藿品質的環境因子進行篩選分析.結果顯示,淫羊藿苷含量與7月份水蒸氣壓呈線性回歸關系(F=26.331, P=0.000, r=0.703, R2=0.494),淫羊藿苷含量隨著7月份水蒸氣數值增加逐漸降低,在適宜淫羊藿生長的河道兩邊,距離河流越遠淫羊藿苷含量越高,藥材品質越好.本研究表明,MaxEnt模型和地理信息技術可作為研究影響野生淫羊藿品質變化的一種有效方法,指導淫羊藿藥材資源的保護與開發.
淫羊藿; 淫羊藿苷; 品質; 物種分布模型; MaxEnt
Q948A2023.026002
收稿日期: 2022-05-03
基金項目: 國家自然科學基金(81072999);河北省中醫藥管理局科研計劃(2017079)
作者簡介: 李云峰(1983-), 男, 山東濱州人, 博士研究生, 主要從事中藥資源方面研究. E-mail: 13503347721@163.com
通訊作者: 孟繁蘊. E-mail: mfy@bnu.edu.cn
Quality change analysis of Epimedium brevicornu Maxim. in Taohe River basin in southern Gansu Province based on the MaxEnt model
LI Yun-Feng1,2,3, HE Ping2,3, MENG Fan-Yun2,3
(1. Key Laboratory of Research and Development of Traditional Chinese Medicine in Hebei Province, Chengde Medical University, Chengde 067000, China;
2. Beijing Key Lab of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China;
3. Engineering Research Center of Natural Medicine, Ministry of Education, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China)
As a wild medicinal herb, the quality of Epimedium brevicornu Maxim. is affected by the natural environment. In order to study the quality change trend of E. brevicornu Maxim., this study selected E. brevicornu Maxim. in the Taohe River basin in southern Gansu province as the research object, the content of icariin was taken as the quality standard, MaxEnt model and geographic information technology were used to analyze the correlation between icariin content and the environmental factors. The results showed that there was a linear regression relationship between the content of icariin and water vapor pressure in July (F=26.331, P=0.000, r=0.703, R2=0.494), and the content of icariin gradually decreased with the increase of water vapor pressure in July. On both sides of the river that is suitable for the growth of E. brevicornu Maxim., the further the distance from the river, the higher the content of icariin, and the better the quality of the medicinal material. In this study, the MaxEnt model and geographic information technology could be used as an effective method to study the quality changes of wild E. brevicornu Maxim., and guide the protection and development of its medicinal resources of it.
Epimedium brevicornu Maxim.; Icariin; Quality; Species distribution model; MaxEnt
1 引 言淫羊藿(Epimedium brevicornu Maxim.)為多年生草本植物,屬于小檗科淫羊藿屬,適宜生長在山坡林下陰濕處,俗名為“仙靈脾”,又因其二回三出復葉結構,得名“三枝九葉草”.淫羊藿始載于東漢時期的《神農本草經》,列為中品,書中記載“主陰痿絕傷,莖中痛,利小便,益氣力,強志.一名剛前.生山谷”.陶弘景在《本草經集注》中記錄“西川北部有淫羊,一日百合,蓋食藿所致,故名淫羊藿”,是最早關于“淫羊藿”名稱由來的描述.自古以來,淫羊藿作為藥用植物被用于中醫臨床治療[1,2],具有補腎陽、強……