New flux based dose-response relationships for ozone for European forest tree species
2015
Büker, P. | Feng, Z. | Uddling, J. | Briolat, A. | Alonso, R. | Braun, S. | Elvira, S. | Gerosa, G | Karlsson, P.E. | Le Thiec, Didier | Marzuoli, R. | Mills, G. | Oksanen, E. | Wieser, G. | Wilkinson, M. | Emberson, L.D. | Environment Department ; Stockholm Environment Institute in York (SEI) | Research Centre for Eco-Environmental Science ; Chinese Academy of Sciences [Changchun Branch] (CAS) | Department of Biological and Environmental Sciences [Gothenburg] ; Göteborgs Universitet = University of Gothenburg (GU) | Ecotoxicology of Air Pollution (CIEMAT) | Institut für Angewandte Pflanzenbiologie (IAP) | Dipartimento di Matematica e Fisica ; Università cattolica del Sacro Cuore [Milano] (Unicatt) | Swedish Environmental Research Institute (IVL) | Ecologie et Ecophysiologie Forestières [devient SILVA en 2018] (EEF) ; Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL) | Centre for Ecology and Hydrology ; Bangor University | Department of Biology ; University of Eastern Finland | Department for Natural Hazards and Alpine Timberline ; Federal Research and Training Centre for Forests Natural Hazards and Landscape | Alice Holt Lodge ; Forest Research [Great Britain] | UK Department for Environment, Food and Rural Affairs (Defra - AQ0601) | European Project: 282910
Supplementary data related to this article can be found at :http://dx.doi.org/10.1016/j.envpol.2015.06.033
Show more [+] Less [-]English. To derive O3 dose-response relationships (DRR) for five European forest trees species and broadleaf deciduous and needleleaf tree plant functional types (PFTs), phytotoxic O3 doses (PODy) were related to biomass reductions.[br/]PODy was calculated using a stomatal flux model with a range of cut-off thresholds (y) indicative of varying detoxification capacities. Linear regression analysis showed that DRR for PFT and individual tree species differed in their robustness. A simplified parameterisation of the flux model was tested and showed that for most non-Mediterranean tree species, this simplified model led to similarly robust DRR as compared to a species- and climate region-specific parameterisation.[br/]Experimentally induced soil water stress was not found to substantially reduce PODy, mainly due to the short duration of soil water stress periods.[br/]This study validates the stomatal O3 flux concept and represents a step forward in predicting O3 damage to forests in a spatially and temporally varying climate.
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