生态学杂志2024，Vol.43Issue(8)：2403-2413,11.DOI:10.13292/j.1000-4890.202408.020
亚热带11种常见竹种春季挥发性有机物排放清单及异戊二烯排放通量
Biogenic volatile organic compounds(VOCs)emission inventory and isoprene emission flux in spring of 11 common subtropical bamboo species
摘要
Abstract
We examined the emission of volatile organic compounds(VOCs)of 11 common subtropical bamboo species by using a dynamic headspace sampling technique.Except for Bambusa multiplex cv.Fernleaf and Phyl-lostachys heterocycla cv.pubescens,the other nine species were all reported for the first time.The VOCs composi-tion,relative contents,the pollution gases contained,and emission rates of isoprene(ISO)were analyzed.Given that the height of bamboo species would affect ISO emission,all bamboo species were divided as large,medium,and small groups and their ISO emission differences were also analyzed.The results showed that the compounds emitted from the 11 bamboo species could be classified into eight types,including hydrocarbons,alcohols,ketones,acids,esters,aldehydes,ethers,and other VOCs.In terms of total number of detailed compounds,11 bamboo species emitted 339 kinds of compounds.Pseudosasa amabilis emitted the most diverse compounds(48 kinds),while Bambusa multiplex cv.Fernleaf emitted the least(11 kinds).No monoterpenes or sesquiterpenes were detected in 11 bamboo species.Seven bamboo species all emitted terpenes,all of which were composed of ISO.The VOCs components of 11 bamboo species contained six kinds of VOCs beneficial to human health and 16 kinds of air pollutants,among which Pseudosasa amabilis emitted the most kinds of pollutants and Phyllostachys het-erocycla cv.pubescens emitted the largest relative contents.The ISO emission rates of the seven ISO-emitted bamboo species ranged from 0.16 to 7.75 pg·g-1·h-1.Phyllostachys heterocycla cv.pubescens had the highest ISO emis-sion rates(7.75 μg·g-1·h-1),and the lowest was Pleioblastus china f.hisauchii(0.16 μg·g-1·h-1).Large bamboo species emitted more ISO than middle and small bamboo species,which was about six times of medium bamboo and 19 times of small bamboo.关键词
竹子/挥发性有机物(VOCs)/物质组成/异戊二烯/排放速率Key words
bamboo/volatile organic compounds(VOCs)/composition/isoprene/emission rate引用本文复制引用
王超,杨滨锴,李丽,崔博文,王福升,王效科..亚热带11种常见竹种春季挥发性有机物排放清单及异戊二烯排放通量[J].生态学杂志,2024,43(8):2403-2413,11.基金项目
国家自然科学基金面上项目(32171586)、中国科学院城市与区域国家重点实验室开放基金(SKLURE2021-2-3)和江苏省教育厅江苏省高校"青蓝工程"优秀青年骨干教师培养计划(苏教师函[2022]29号)资助. （32171586）
