Global Change & Ecosystems

0455370 - ÚVGZ 2016 RIV CZ eng M - Monography Chapter
Zapletal, Miloš - Edwards-Jonášová, Magda - Juráň, Stanislav - Urban, Otmar - Pokorný, Radek - Pavelka, Marian - Janouš, Dalibor - Cudlín, Pavel
Effect of ozone concentration on net ecosystem production: A case study in a Norway spruce forest.
Global Change & Ecosystems. Volume 1. 1. Brno: Global Change Research Centre, Academy of Sciences of the Czech Republic, v. v. i, 2015 - (Urban, O.; Klem, K.), s. 138-149. ISBN 978-80-87902-14-1
R&D Projects: GA MŠMT(CZ) LO1415
Institutional support: RVO:67179843
Keywords : tropospheric ozone * ozone concentrations * air pollutants * Norway spruce forest
Subject RIV: EH - Ecology, Behaviour

Tropospheric ozone is one of the most important phytotoxic air pollutants. There is evidence that ambient ozone concentrations and stomatal fluxes cause detrimental effects in European forests, including visible leaf injuries, growth reduction, and altered sensitivity to biotic and abiotic stresses. In this chapter we present daily variation in ozone deposition flux to a Norway spruce forest as estimated using the gradient method. Results from measurements and the model were in good agreement. During the 2007–2009 vegetation periods, POD (phytotoxic ozone dose) substantially exceeded the threshold value of 8 mmol m–2 suggested by ICP Vegetation (2010) for the protection of Norway spruce forests. Global carbon models that do not take into account the NEP reduction caused by ozone may result in overestimation. Until now, only a few studies have incorporated this NEP loss. From the perspective of the precautionary principle to sustain wood stock productivity, it seems important to include an ozone risk assessment into the awareness of local policy decision makers.
Permanent Link: http://hdl.handle.net/11104/0256104