摘要
选取北京地区典型常绿树种侧柏(Platycladus orientalis)和落叶树种垂柳(Salix babylonica),以生长健康、树龄(8年)相同树种为试材,开展植物释放有益挥发性有机物(BVOCs)动态变化特征研究实验。采用自动热脱附-气相色谱/质谱联用法(Thermal desorption Cold Trap-Gas Chromagraphy/Mass Spectrum,TCT/GC/MS)进行植物BVOCs成分测定,筛选出集景观美化、清新空气、康体保健于一体的园林景观树种,从景观生态学视角为城市绿地植物配置、生态康养森林群落营造提供必要理论依据。针对TCT/GC/MS分析获得的BVOCs原始数据-总离子流图(Total ion current,TIC),其各峰对应化学物质信息利用TurboMass Ver 5.4.2软件、质谱数据库(Nist 2008 Library)检索,经过人工校对和解析后,最终确定各BVOCs成分。结果表明,侧柏在生长季共释放烯烃类、酯类、醛类、酮类、醇类、有机酸类和其他类共7类45种有益挥发物。垂柳较之少一类有机酸,为6类43种;侧柏释放总有益挥发物不同生长季表现为秋季(61.70%)>春季(60.99%)>夏季(60.82%),各季以(1R)-(+)-α-蒎烯、α-蒎烯、3-蒈烯等烯烃类有益组分相对含量较高;垂柳释放总有益挥发物不同生长季表现为春季(51.35%)>夏季(41.09%)>秋季(32.94%),各季以乙酸叶醇酯、顺-3-己烯-1-醇、(+/-)-薄荷醇、天然壬醛和(1R)-(+)-α-蒎烯等成分相对含量较高,各有益类别化合物季节变化规律明显。
The typical evergreen tree species Platycladus orientalis and the deciduous tree species Salix babyylonica in Beijing and the healthy tree species with the same age(8 years)were selected as the test materials to conduct experiments on the dynamics of beneficial volatile organic compounds(BVOCs)released by plants.Automatic Thermal desorption Cold Trap-Gas Chromagraphy/Mass Spectrum(TCT/GC/MS)was used to determine the composition of plant BVOCs,and select garden landscape tree species that integrate landscape beautification,fresh air,and health care.From the perspective of landscape ecology,the current study provides the necessary theoretical basis for the configuration of urban green space plants and the construction of ecological and healthy forest communities.According to the original data of BVOCs obtained by TCT/GC/MS analysis-Total ion current(TIC),the chemical substance information corresponding to each peak was retrieved using TurboMass Ver 5.4.2 software and the mass spectrum database(Nist 2008 Library).After manual proofreading and analysis,the components of each type of BVOCs were finally determined.The results showed that Platycladus orientalis released a total of 45 beneficial volatile components including olefins,esters,aldehydes,ketones,alcohols,organic acids,and others during the growing season.Salix babylonica had one fewer type of organic acid and contained 6 types of 43 components.The total beneficial volatiles released by Platycladus orientalis in different growing seasons were as follows:autumn(61.70%)>spring(60.99%)>summer(60.82%).(1R)-(+)-α-pinene,α-pinene,3-carene,and other olefin beneficial components were relatively high in relative contents;the total beneficial volatiles released by Salix babyylonica in different growing seasons were as follows:spring(51.35%)>summer(41.09%)>autumn(32.94%).In each season,the relative contents of leaf alcohol acetate,cis-3-hexen-1-ol,(+/-)-menthol,natural nonanal and(1R)-(+)-α-Pinene,and other components were relatively high,and the seasonal changes of various beneficial compounds were obvious.
作者
李少宁
陶雪莹
李慧敏
赵娜
徐晓天
鲁绍伟
LI Shaoning;TAO Xueying;LI Huimin;ZHAO Na;XU Xiaotian;LU Shaowei(Beijing Academy of Forestry and Pomology Sciences,Yanshan Forest Ecosystem Research Station of Beijing,Beijing 100093,P.R.China;Shenyang Agricultural University,Shenyang 110866,P.R.China)
出处
《生态环境学报》
CSCD
北大核心
2022年第2期257-264,共8页
Ecology and Environmental Sciences
基金
北京市农林科学院科技创新能力建设资助项目(KJCX20190301,KJCX20200207,KJCX20200801)
北京市农林科学院林业果树研究所(LGYJJ202010)。
关键词
侧柏
垂柳
有益挥发性有机物
生长季
动态变化
Platycladus orientalis
Salix babylonica
beneficial biogenic volatile organic compounds
growing season
dynamic change