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@article{30103, author = {Juráň, Stanislav and EdwardsandJonášová, Magda and Cudlín, Pavel and Zapletal, Miloš and Šigut, Ladislav and Grace, John and Urban, Otmar}, article_number = {December}, doi = {http://dx.doi.org/10.3832/ifor2805-011}, keywords = {carbon; CO2 assimilation; model; stomatal ozone flux}, language = {eng}, issn = {1971-7458}, journal = {iForest}, title = {Prediction of ozone effects on net ecosystem production of Norway spruce forest}, url = {https://iforest.sisef.org/contents/?id=ifor2805-011}, volume = {11}, year = {2018} }
TY - JOUR ID - 30103 AU - Juráň, Stanislav - Edwards-Jonášová, Magda - Cudlín, Pavel - Zapletal, Miloš - Šigut, Ladislav - Grace, John - Urban, Otmar PY - 2018 TI - Prediction of ozone effects on net ecosystem production of Norway spruce forest JF - iForest VL - 11 IS - December SP - 743-750 EP - 743-750 SN - 19717458 KW - carbon KW - CO2 assimilation KW - model KW - stomatal ozone flux UR - https://iforest.sisef.org/contents/?id=ifor2805-011 L2 - https://iforest.sisef.org/contents/?id=ifor2805-011 N2 - Future ground-level concentrations of phytotoxic ozone are projected to grow in the Northern Hemisphere, at a rate depending on emission scenarios. We explored the likely changes in net ecosystem production (NEP) due to the increasing concentration of tropospheric ozone by applying a Generalized Additive Mixed Model based on measurements of ozone concentration ([O_3]) and stomatal ozone flux (FsO_3), at a mountainous Norway spruce forest in the Czech Republic, Central Europe. A dataset covering the growing period (May-August 2009) was examined in this case study. A predictive model based on FsO_3 was found to be marginally more accurate than a model using [O_3] alone for prediction of the course of NEP when compared to NEP measured by the eddy covariance technique. Both higher [O_3] and FsO_3 were found to reduce NEP. NEP simulated at low, pre-industrial FsO_3 (0.5 nmol m^{-2} s^{-1} ) was higher by 24.8% as compared to NEP assessed at current rates of FsO_3 (8.32 nmol m^{-2} s^{-1}). However, NEP simulated at high FsO_3 (17 nmol m^{-2} s^{-1}), likely in the future, was reduced by 14.1% as compared to NEP values at current FsO_3. The interaction between environmental factors and stomatal conductance is discussed in this paper. ER -
JURÁŇ, Stanislav, Magda EDWARDS-JONÁŠOVÁ, Pavel CUDLÍN, Miloš ZAPLETAL, Ladislav ŠIGUT, John GRACE a Otmar URBAN. Prediction of ozone effects on net ecosystem production of Norway spruce forest. \textit{iForest}. roč.~11, December, s.~743-750. ISSN~1971-7458. doi:10.3832/ifor2805-011. 2018.
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