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作者中文名	作者英文名	单位中文名	单位英文名	E-Mail
吴婷	WU Ting	湖北中医药大学时珍实验室，湖北武汉 430065	Hubei Shizhen Laboratory, Hubei University of Chinese Medicine, Wuhan 430065, China
李双鸽	LI Shuang-ge	湖北中医药大学时珍实验室，湖北武汉 430065	Hubei Shizhen Laboratory, Hubei University of Chinese Medicine, Wuhan 430065, China
李慧	LI Hui	江西中医药健康产业研究院，江西南昌 330000	Jiangxi Institute of Traditional Chinese Medicine Health Industry, Nanchang 330000, China
赵亚臣	ZHAO Ya-chen	江西中医药大学院士工作站，江西南昌 330000	Academician Workstation, Jiangxi University of Chinese Medicine, Nanchang 330000, China
黄显章	HUANG Xian-zhang	南阳理工学院河南省张仲景方药与免疫调节重点实验室，河南南阳 473004	He'nan Key Laboratory of Zhang Zhongjing Formulae and Herbs for Immunoregulation, Nanyang Institute of Technology, Nanyang 473004, China
刘大会*	LIU Da-hui	湖北中医药大学时珍实验室，湖北武汉 430065	Hubei Shizhen Laboratory, Hubei University of Chinese Medicine, Wuhan 430065, China

基金项目:江西中医药健康产业研究院科技项目；国家中医药管理局青年岐黄学者项目；湖北省现代农业产业技术体系项目（HBHZD-ZB-2020-005）；湖北省教育厅中青年人才项目（Q20212008）

中文摘要:目的探究海拔对大别山区野生宽叶山蒿叶片性状和品质的影响。方法对宽叶山蒿的叶片性状、出绒率、叶绒燃烧热解质量和叶片成分含量进行测定，利用相关性分析筛选与海拔有关联的指标，并通过主成分分析对不同海拔叶片成分进行综合评价。结果随着海拔升高，宽叶山蒿叶长和叶宽呈先减小后增加的趋势，出绒率呈逐渐升高的趋势；除海拔1720 m宽叶山蒿叶绒的综合燃烧特性较差、燃烧放热量较少外，各海拔叶绒的点燃性能、燃烧后的速度和稳定性、燃烧持久性、燃尽性能和燃烧过程的放热量均相似。叶片成分比较发现，海拔≤1084 m，桉油精、α-古巴烯、石竹烯和氧化石竹烯相对含量较高；海拔≥1550 m，乙酸龙脑酯、大根香叶烯D相对含量较高；海拔≥1084 m，绿原酸、隐绿原酸、异绿原酸C质量分数较高。相关性分析发现，宽叶山蒿叶片性状与海拔不相关，出绒率、大根香叶烯D相对含量、绿原酸质量分数、隐绿原酸质量分数与海拔呈正相关（P<0.01），异绿原酸C质量分数与海拔呈正相关（P<0.05），氧化石竹烯相对含量与海拔呈负相关（P<0.01）。主成分分析显示，高海拔宽叶山蒿叶片成分综合得分较高。结论不同海拔造成的环境差异可能是导致野生宽叶山蒿叶片性状、出绒率、叶绒燃烧热解质量和叶片成分差异的重要因素，高海拔更利于野生宽叶山蒿的生长。

中文关键词:宽叶山蒿海拔叶片性状出绒率挥发性成分黄酮酚酸

Effects of Altitude on Leaf Character and Quality of Wild Artemisia Stolonifera in Dabie Mountains

Abstract:Objective To explore the effects of altitude on leaf character and quality of wild Artemisia stolonifera in Dabie Mountains.Methods The leaf character, floss yield, floss burning quality and the mass fraction of leaf components of A. stolonifera were determined. Correlation analysis was used to screen the correlation indicators with altitude, and principal component analysis was carried out for comprehensive evaluation of leaf components.Results With the increase of altitude, the leaf length and leaf width of A. stolonifera showed a trend of first decreasing and then increasing, and the floss yield presented a gradual increase. Except for the poor comprehensive combustion characteristics and little combustion heat release of A. stolonifera leaf velvet at an altitude of 1720 m, the ignition performance, speed and stability after combustion, combustion persistence, burnout performance and combustion heat release were similar at other altitudes. By comparison of the mass fraction of leaf components, it was found that eucalyptus, α-copaene, caryophyllene and caryophyllene oxide were generally higher at altitude≤1084 m; bornyl acetate and caryophyllene D were higher at altitude≥1550 m; chlorogenic acid, cryptochlorogenic acid and isochlorogenic acid C were higher at altitude≥1084 m. Correlation analysis revealed that altitude had no correlation with leaf character, but was positively related with floss yield, caryophyllene D, chlorogenic acid, cryptochlorogenic acid (P<0.01) and isochlorogenic acid C (P<0.05), and negatively related with caryophyllene oxide (P<0.01). Principal component analysis showed that the comprehensive score of leaf components of A. stolonifera at high altitudes was generally higher.Conclusion Environmental differences due to different altitudes might be important factors contributing to varying leaf character, floss yield, floss burning quality and mass fraction of leaf components of wild A. stolonifera. This indicated that high altitude was more conducive to the growth of wild A. stolonifera.

keywords:Artemisia Stolonifera (Maxim.) Komar. altitude leaf character floss yield volatile components flavonoids phenolic acids

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