DOI: 10.1111/gcb.13824
Scopus记录号: 2-s2.0-85040599217
论文题名: A unifying explanation for variation in ozone sensitivity among woody plants
作者: Feng Z. ; Büker P. ; Pleijel H. ; Emberson L. ; Karlsson P.E. ; Uddling J.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2018
卷: 24, 期: 1 起始页码: 78
结束页码: 84
语种: 英语
英文关键词: leaf mass per area
; ozone flux–response relationships
; ozone risk assessment
; stomatal conductance
; stomatal ozone uptake
; woody species
Scopus关键词: atmospheric pollution
; leaf area
; morphology
; ozone
; risk assessment
; troposphere
; vegetation
; woody plant
英文摘要: Tropospheric ozone is considered the most detrimental air pollutant for vegetation at the global scale, with negative consequences for both provisioning and climate regulating ecosystem services. In spite of recent developments in ozone exposure metrics, from a concentration-based to a more physiologically relevant stomatal flux-based index, large-scale ozone risk assessment is still complicated by a large and unexplained variation in ozone sensitivity among tree species. Here, we explored whether the variation in ozone sensitivity among woody species can be linked to interspecific variation in leaf morphology. We found that ozone tolerance at the leaf level was closely linked to leaf dry mass per unit leaf area (LMA) and that whole-tree biomass reductions were more strongly related to stomatal flux per unit leaf mass (r2 = 0.56) than to stomatal flux per unit leaf area (r2 = 0.42). Furthermore, the interspecific variation in slopes of ozone flux–response relationships was considerably lower when expressed on a leaf mass basis (coefficient of variation, CV = 36%) than when expressed on a leaf area basis (CV = 66%), and relationships for broadleaf and needle-leaf species converged when using the mass-based index. These results show that much of the variation in ozone sensitivity among woody plants can be explained by interspecific variation in LMA and that large-scale ozone impact assessment could be greatly improved by considering this well-known and easily measured leaf trait. © 2017 John Wiley & Sons Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110612
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China; Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden; Stockholm Environment Institute, Environment Department, University of York, York, United Kingdom; IVL Swedish Environmental Research Institute, Gothenburg, Sweden
Recommended Citation:
Feng Z.,Büker P.,Pleijel H.,et al. A unifying explanation for variation in ozone sensitivity among woody plants[J]. Global Change Biology,2018-01-01,24(1)