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New stomatal flux-based critical levels for ozone effects on vegetation

Mills, G; Pleijel, Håkan LU ; Braun, S; Buker, P; Bermejo, V; Calvo, E; Danielsson, H; Emberson, L; Fernandez, IG and Grunhage, L, et al. (2011) In Atmospheric Environment 45(28). p.5064-5068
Abstract
The critical levels for ozone effects on vegetation have been reviewed and revised by the LRTAP Convention. Eight new or revised critical levels based on the accumulated stomatal flux of ozone (POD gamma, the Phytotoxic Ozone Dose above a threshold flux of Y nmol m(-2) PLA s(-1), where PLA is the projected leaf area) have been agreed. For each receptor, data were combined from experiments conducted under naturally fluctuating environmental conditions in 2-4 countries, resulting in linear dose response relationships with response variables specific to each receptor (r(2) = 0.49-0.87, p < 0.001 for all). For crops, critical levels were derived for effects on wheat (grain yield, grain mass, and protein yield), potato (tuber yield) and... (More)
The critical levels for ozone effects on vegetation have been reviewed and revised by the LRTAP Convention. Eight new or revised critical levels based on the accumulated stomatal flux of ozone (POD gamma, the Phytotoxic Ozone Dose above a threshold flux of Y nmol m(-2) PLA s(-1), where PLA is the projected leaf area) have been agreed. For each receptor, data were combined from experiments conducted under naturally fluctuating environmental conditions in 2-4 countries, resulting in linear dose response relationships with response variables specific to each receptor (r(2) = 0.49-0.87, p < 0.001 for all). For crops, critical levels were derived for effects on wheat (grain yield, grain mass, and protein yield), potato (tuber yield) and tomato (fruit yield). For forest trees, critical levels were derived for effects on changes in annual increment in whole tree biomass for beech and birch, and Norway spruce. For (semi-)natural vegetation, the critical level for effects on productive and high conservation value perennial grasslands was based on effects on important component species of the genus Trifolium (clover species). These critical levels can be used to assess protection against the damaging effects of ozone on food security, important ecosystem services provided by forest trees (round-wood production, C sequestration, soil stability and flood prevention) and the vitality of pasture. (C) 2011 Elsevier Ltd. All rights reserved. (Less)
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subject
keywords
Ozone, Flux, Critical levels, Food security, Ecosystem services, Trees, Grasslands
in
Atmospheric Environment
volume
45
issue
28
pages
5064 - 5068
publisher
Elsevier
external identifiers
  • scopus:79955076546
ISSN
1352-2310
DOI
10.1016/j.atmosenv.2011.06.009
project
BECC
language
English
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yes
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1986d138-704b-4300-bc19-825da7f7e612 (old id 4448567)
date added to LUP
2014-05-23 12:11:17
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2017-08-27 04:48:45
@article{1986d138-704b-4300-bc19-825da7f7e612,
  abstract     = {The critical levels for ozone effects on vegetation have been reviewed and revised by the LRTAP Convention. Eight new or revised critical levels based on the accumulated stomatal flux of ozone (POD gamma, the Phytotoxic Ozone Dose above a threshold flux of Y nmol m(-2) PLA s(-1), where PLA is the projected leaf area) have been agreed. For each receptor, data were combined from experiments conducted under naturally fluctuating environmental conditions in 2-4 countries, resulting in linear dose response relationships with response variables specific to each receptor (r(2) = 0.49-0.87, p &lt; 0.001 for all). For crops, critical levels were derived for effects on wheat (grain yield, grain mass, and protein yield), potato (tuber yield) and tomato (fruit yield). For forest trees, critical levels were derived for effects on changes in annual increment in whole tree biomass for beech and birch, and Norway spruce. For (semi-)natural vegetation, the critical level for effects on productive and high conservation value perennial grasslands was based on effects on important component species of the genus Trifolium (clover species). These critical levels can be used to assess protection against the damaging effects of ozone on food security, important ecosystem services provided by forest trees (round-wood production, C sequestration, soil stability and flood prevention) and the vitality of pasture. (C) 2011 Elsevier Ltd. All rights reserved.},
  author       = {Mills, G and Pleijel, Håkan and Braun, S and Buker, P and Bermejo, V and Calvo, E and Danielsson, H and Emberson, L and Fernandez, IG and Grunhage, L and Harmens, H and Hayes, F and Karlsson, PE and Simpson, D},
  issn         = {1352-2310},
  keyword      = {Ozone,Flux,Critical levels,Food security,Ecosystem services,Trees,Grasslands},
  language     = {eng},
  number       = {28},
  pages        = {5064--5068},
  publisher    = {Elsevier},
  series       = {Atmospheric Environment},
  title        = {New stomatal flux-based critical levels for ozone effects on vegetation},
  url          = {http://dx.doi.org/10.1016/j.atmosenv.2011.06.009},
  volume       = {45},
  year         = {2011},
}