气候变化领域集成服务门户(CCPortal): Litter of mediterranean species as a source of volatile organic compounds

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DOI	10.1016/j.atmosenv.2020.117815
	Litter of mediterranean species as a source of volatile organic compounds
	J V.; C F.; H W.; J G.; C L.; E O.
发表日期	2020
ISSN	1352-2310
卷号	242
英文摘要	Leaf litter, at the interface between the soil and the atmosphere, releases Biogenic Volatile Organic Compounds (BVOC) which play an important role both in global atmospheric chemistry and plant ecology. Litter is especially important in the Mediterranean region, where it is produced in high amounts and decomposes slowly. Only leaf litter emissions of two dominant species (Pinus halepensis and Eucalyptus spp.) present in the Mediterranean region have been studied so far. The aim of this study is to characterize (quantitatively and qualitatively) the BVOC emissions (C10–C15) from litter (freshly fallen and non-decomposed leaves) under laboratory conditions. Sixteen species frequently found in the Mediterranean region were considered, nine of which possess terpene storage structures. Results show a large diversity of BVOC (87 compounds detected, terpenes, alkanes, alkenes, aldehydes, ketones, benzenoids), with terpene emission being higher than non-terpenic emission in most of the cases. Species were classified within 3 categories: negligible emitters (e.g. Acer monspessulanum and Quercus ilex, < 0.10 μg.gDM−1.h−1), low emitters (Pinus pinea, Quercus pubescens, 0.1–1.0 μg.gDM−1.h−1) and moderate emitters (Thymus vulgaris, Cotinus coggygria and Pinus halepensis between 1.5 and 4.7 μg.gDM−1.h−1). Litter that possessed terpene storage structures and known to store high terpene concentration did not always release the highest terpene emission rates (e.g. Eucalyptus globulus, Rosmarinus officinalis). Species that do not possess such structures release only non terpenic emissions (e.g. alkanes, aldehydes). Estimation of the potential contribution of P. halepensis and Q. pubescens litter to O3 and secondary organic aerosol (SOA) formation in the atmosphere showed that P. halepensis has a larger potential impact on the global air quality than Q. pubescens. This study will contribute to build future BVOC emissions inventories on leaf litter for their further integration in atmospheric chemistry models. © 2020 Elsevier Ltd
关键词	Air quality BVOC emissions Plant functional types Storage structure Terpenes
语种	英语
scopus关键词	Air quality; Aldehydes; Ketones; Olefins; Paraffins; Plants (botany); Terpenes; Volatile organic compounds; Atmospheric chemistry model; Biogenic volatile organic compounds; Emissions inventory; Eucalyptus globulus; Laboratory conditions; Mediterranean region; Rosmarinus officinalis; Secondary organic aerosols; Atmospheric chemistry; aldehyde derivative; alkane derivative; aromatic compound; biogenic volatile organic compound; caryophyllene; humulene; ketone derivative; limonene; monoterpene; oxygen; ozone; pinene; sesquiterpene; terpene derivative; terpinolene; unclassified drug; volatile organic compound; aerosol; air quality; atmospheric chemistry; coniferous tree; leaf litter; Mediterranean environment; volatile organic compound; Acer; Acer monspessulanum; air pollution; air quality; Article; biosphere; concentration (parameter); Cotinus coggygria; deciduous plant; Eucalyptus globulus; evergreen; leaf litter; litter decomposition; oak; photochemistry; pine; Pinus halepensis; Pinus pinea; plant leaf; priority journal; qualitative analysis; quantitative analysis; Quercus ilex; Quercus pubescens,; rosemary; scanning electron microscopy; secondary organic aerosol; shrub; soil microflora; Southern Europe; storage; thyme; Acer monspessulanum; Cotinus coggygria; Eucalyptus; Eucalyptus globulus; Pinus halepensis; Pinus pinea; Quercus ilex; Quercus pubescens; Rosmarinus officinalis; Thymus vulgaris
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248912
作者单位	CNRS, Aix Marseille Univ, Avignon Univ, IRD, IMBE, Marseille, France; Aix Marseille Univ., CNRS, LCE, Laboratoire de Chimie de L'Environnement, Marseille, France
推荐引用方式 GB/T 7714	J V.,C F.,H W.,et al. Litter of mediterranean species as a source of volatile organic compounds[J],2020,242.
APA	J V.,C F.,H W.,J G.,C L.,&E O..(2020).Litter of mediterranean species as a source of volatile organic compounds.ATMOSPHERIC ENVIRONMENT,242.
MLA	J V.,et al."Litter of mediterranean species as a source of volatile organic compounds".ATMOSPHERIC ENVIRONMENT 242(2020).