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The carbon sink strength of beech in a changing environment: experimental risk assessment of mitigation by chronic ozone impact.

Objective

The vulnerability of adult beech is to be clarified at Central-European forest conditions to chronic O3 impact. O3 as acting in "Global Change" may constrain the C sink strength under expected atmospheric CO2 enrichment. A novel "Free-Air Canopy O3 Exposure" system, creating an enhanced O3 regime within the canopy ensures the analysis of O3-induced responses relevant for tree C balance. O3 flux into leaves will be validated against AOT40. Responses across cell, organ and whole-tree level will be assessed with molecular, biochemical and ecophysiological methods. Additional exposure of young beech within the canopy and branch curette fumigations will validate previous O3 studies. Evidence will be incorporated into mechanistic modelling that scales to the stand level and quantifies O3 impact for "Global Change" scenarios. This process-based risk assessment will guide policy making.

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

TECHNICAL UNIVERSITY OF MUNICH
Address
Am Hochanger 13
85 354 Freising
Germany

Participants (8)

ALBERT-LUDWIGS-UNIVERSITAET FREIBURG
Germany
Address
Georges Kohler Allee 053 054
79110 Freiburg (In Breisgau)
FEDERAL RESEARCH AND TRAINING CENTRE FOR FORESTS, NATURAL HAZARDS AND LANDSCAPE
Austria
Address
Rennweg 1
6020 Innsbruck
KARL-FRANZENS-UNIVERSITAET GRAZ
Austria
Address
Schuberstrasse 51
8010 Graz
SLOVENIAN FORESTRY INSTITUTE
Slovenia
Address
Vecna Pot 2
1000 Ljubljana
TECHNICAL UNIVERSITY OF MUNICH
Germany
Address
Am Hochanger 13
85 354 Freising
TECHNICAL UNIVERSITY OF MUNICH
Germany
Address
Am Hochanger 13
85354 Freising
UNIVERSITAIRE INSTELLING ANTWERPEN - UNIVERSITEIT ANTWERPEN
Belgium
Address
1,Universiteitsplein 1
2610 Wilrijk (Antwerpen)
University of Cambridge
United Kingdom
Address
Downing Street
CB2 3EA Cambridge