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Matyssek, R.* ; Wieser, G.* ; Ceulemans, R.* ; Rennenberg, H.* ; Pretzsch, H.* ; Haberer, K.* ; Löw, M.* ; Nunn, A.J.* ; Werner, H.* ; Wipfler, P.* ; Oßwald, W.* ; Nikolova, P.* ; Hanke, D.E.* ; Kraigher, H.* ; Tausz, M.* ; Bahnweg, G. ; Kitao, M.* ; Dieler, J.* ; Sandermann, H. ; Herbinger, K.* ; Grebenc, T.* ; Blumenröther, M.* ; Deckmyn, G.* ; Grams, T.E.E.* ; Heerdt, C.* ; Leuchner, M.* ; Häberle, K.-H.*

Enhanced ozone strongly reduces carbon sink strength of adult beech (Fagus sylvatica) - resume from the free-air fumigation study at Kranzberg Forest.

Environ. Pollut. 158, 2527-2532 (2010)
DOI PMC
Open Access Green as soon as Postprint is submitted to ZB.
Ground-level ozone (O(3)) has gained awareness as an agent of climate change. In this respect, key results are comprehended from a unique 8-year free-air O(3)-fumigation experiment, conducted on adult beech (Fagus sylvatica) at Kranzberg Forest (Germany). A novel canopy O(3) exposure methodology was employed that allowed whole-tree assessment in situ under twice-ambient O(3) levels. Elevated O(3) significantly weakened the C sink strength of the tree-soil system as evidenced by lowered photosynthesis and 44% reduction in whole-stem growth, but increased soil respiration. Associated effects in leaves and roots at the gene, cell and organ level varied from year to year, with drought being a crucial determinant of O(3) responsiveness. Regarding adult individuals of a late-successional tree species, empirical proof is provided first time in relation to recent modelling predictions that enhanced ground-level O(3) can substantially mitigate the C sequestration of forests in view of climate change.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Ozone; Fagus sylvatica; Stem production; Soil respiration; Flux
Language english
Publication Year 2010
HGF-reported in Year 2010
ISSN (print) / ISBN 0269-7491
e-ISSN 1873-6424
Quellenangaben Volume: 158, Issue: 8, Pages: 2527-2532 Article Number: , Supplement: ,
Publisher Elsevier
Reviewing status Peer reviewed
POF-Topic(s) 30202 - Environmental Health
Research field(s) Environmental Sciences
PSP Element(s) G-504900-001
PubMed ID 20570421
Scopus ID 77958167279
Erfassungsdatum 2010-09-08