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Matyssek, R.* ; Sandermann, H.* ; Wieser, G.* ; Booker, F.* ; Cieslik, S.* ; Musselman, R.* ; Ernst, D.

The challenge of making ozone risk assessment for forest trees more mechanistic.

Environ. Pollut. 156, 567-582 (2008)
DOI
Open Access Green as soon as Postprint is submitted to ZB.
Upcoming decades will experience increasing atmospheric CO2 and likely enhanced O-3 exposure which represents a risk for the carbon sink strength of forests, so that the need for cause-effect related O-3 risk assessment increases. Although assessment will gain in reliability on an O-3 uptake basis, risk is co-determined by the effective dose, i.e. the plant's sensitivity per O-3 uptake. Recent progress in research on the molecular and metabolic control of the effective O-3 dose is reported along with advances in empirically assessing O-3 uptake at the whole-tree and stand level. Knowledge on both O-3 uptake and effective dose (measures of stress avoidance and tolerance, respectively) needs to be understood mechanistically and linked as a pre-requisite before practical use of process-based O-3 risk assessment can be implemented. To this end, perspectives are derived for validating and promoting new O-3 flux-based modelling tools.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords O-3 flux; Sapflow; Effective O-3 dose; Detoxification; Mechanistic risk assessment
ISSN (print) / ISBN 0269-7491
e-ISSN 1873-6424
Quellenangaben Volume: 156, Issue: 3, Pages: 567-582 Article Number: , Supplement: ,
Publisher Elsevier
Non-patent literature Publications
Reviewing status Peer reviewed