DOI: 10.1016/j.atmosenv.2015.04.066
Scopus记录号: 2-s2.0-84929466136
论文题名: A flux-based assessment of above and below ground biomass of Holm oak (Quercus ilex L.) seedlings after one season of exposure to high ozone concentrations
作者: Gerosa G ; , Fusaro L ; , Monga R ; , Finco A ; , Fares S ; , Manes F ; , Marzuoli R
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 113 起始页码: 41
结束页码: 49
语种: 英语
英文关键词: AOT40
; Biomass loss
; Holm oak
; Ozone
; Phytotoxical ozone dose
Scopus关键词: Biomass
; Forestry
; Ozone
; Plants (botany)
; Risk assessment
; AOT40
; Dose-effect relationships
; Holm oak
; Mediterranean areas
; Open top chambers
; Ozone concentration
; Ozone dose
; Risk assessment models
; Ecology
; ozone
; aboveground biomass
; belowground biomass
; concentration (composition)
; deciduous tree
; dose-response relationship
; flux measurement
; Mediterranean environment
; open-top chamber
; ozone
; phytotoxicity
; pollution exposure
; risk assessment
; seedling
; ambient air
; Article
; biomass production
; environmental exposure
; growing season
; Holm oak
; linear regression analysis
; nonhuman
; oak
; plant growth
; plant leaf
; plant stem
; priority journal
; risk assessment
; root growth
; seedling
; stomatal conductance
; surface area
; Biomass
; Ozone
; Quercus Ilex
; Seedlings
; Europe
; Quercus ilex
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Young plants of Holm oak (Quercus ilex) were exposed in non-limiting water conditions to four different levels of ozone (O3 ) concentrations in Open-Top Chambers during one growing season to evaluate biomass losses on roots, stems and leaves in relation to O3 exposure (AOT40) and phytotoxical ozone dose (POD1 ) absorbed. The exposure-effect and dose-effect relationships for the total biomass were statistically significant and indicated a reduction of 4% and 5.2% of the total biomass for each increase step of 10000ppbh of AOT40 and 10mmolm-2 of POD1 , respectively. The results indicate a critical level for Holm oak protection of 7mmolm-2 of POD1 , which corresponds to 4% of total biomass reduction. The linear regressions based on the POD1 were significant for roots and stem biomass losses, but not significant for leaf biomass. The biomass loss rate at increasing POD1 was higher for roots than for stems and leaves, suggesting that stem growth under high levels of O3 is less affected than root growth. Because of the scarcity of data from the Mediterranean area, these results can be relevant for the O3 risk assessment models and for the definition of new O3 critical levels for forests in Europe. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81744
Appears in Collections: 气候变化事实与影响
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作者单位: Dept. of Mathematics and Physics, Catholic University of Brescia, Via dei Musei 41, Brescia, Italy; Dept. of Environmental Biology, Sapienza University of Rome, Piazzale Aldo Moro 5, Rome, Italy; DISAA, Dept. of Agricultural and Environmental Sciences - Production, Landascape and Agroenergy, University of Milan, Via Celoria 2, Milan, Italy; Consiglio per la Ricerca e la sperimentazione in Agricoltura, Research Centre for the Soil-Plant System, Via della Navicella 2-4, Rome, Italy
Recommended Citation:
Gerosa G,, Fusaro L,, Monga R,et al. A flux-based assessment of above and below ground biomass of Holm oak (Quercus ilex L.) seedlings after one season of exposure to high ozone concentrations[J]. Atmospheric Environment,2015-01-01,113