Prediction of ozone effects on net ecosystem production of Norway spruce forest
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 Add...
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| Format: | Article |
| Language: | English |
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Italian Society of Silviculture and Forest Ecology (SISEF)
2018-12-01
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| Series: | iForest - Biogeosciences and Forestry |
| Subjects: | |
| Online Access: | https://iforest.sisef.org/contents/?id=ifor2805-011 |
| _version_ | 1811203271865401344 |
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| author | Jurán S Edwards-Jonášová M Cudlín P Zapletal M Šigut L Grace J Urban O |
| author_facet | Jurán S Edwards-Jonášová M Cudlín P Zapletal M Šigut L Grace J Urban O |
| author_sort | Jurán S |
| collection | DOAJ |
| description | 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 ([O3]) and stomatal ozone flux (FsO3), 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 FsO3 was found to be marginally more accurate than a model using [O3] alone for prediction of the course of NEP when compared to NEP measured by the eddy covariance technique. Both higher [O3] and FsO3 were found to reduce NEP. NEP simulated at low, pre-industrial FsO3 (0.5 nmol m-2 s-1) was higher by 24.8% as compared to NEP assessed at current rates of FsO3 (8.32 nmol m-2 s-1). However, NEP simulated at high FsO3 (17 nmol m-2 s-1), likely in the future, was reduced by 14.1% as compared to NEP values at current FsO3. The interaction between environmental factors and stomatal conductance is discussed in this paper. |
| first_indexed | 2024-04-12T02:51:54Z |
| format | Article |
| id | doaj.art-7245725e7c084359bc5220221af33d48 |
| institution | Directory Open Access Journal |
| issn | 1971-7458 1971-7458 |
| language | English |
| last_indexed | 2024-04-12T02:51:54Z |
| publishDate | 2018-12-01 |
| publisher | Italian Society of Silviculture and Forest Ecology (SISEF) |
| record_format | Article |
| series | iForest - Biogeosciences and Forestry |
| spelling | doaj.art-7245725e7c084359bc5220221af33d482022-12-22T03:50:57ZengItalian Society of Silviculture and Forest Ecology (SISEF)iForest - Biogeosciences and Forestry1971-74581971-74582018-12-0111174375010.3832/ifor2805-0112805Prediction of ozone effects on net ecosystem production of Norway spruce forestJurán S0Edwards-Jonášová M1Cudlín P2Zapletal M3Šigut L4Grace J5Urban O6Global Change Research Institute CAS, Belidla 986/4a, 603 00 Brno (Czech Republic)Global Change Research Institute CAS, Belidla 986/4a, 603 00 Brno (Czech Republic)Global Change Research Institute CAS, Belidla 986/4a, 603 00 Brno (Czech Republic)Global Change Research Institute CAS, Belidla 986/4a, 603 00 Brno (Czech Republic)Global Change Research Institute CAS, Belidla 986/4a, 603 00 Brno (Czech Republic)Global Change Research Institute CAS, Belidla 986/4a, 603 00 Brno (Czech Republic)Global Change Research Institute CAS, Belidla 986/4a, 603 00 Brno (Czech Republic)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 ([O3]) and stomatal ozone flux (FsO3), 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 FsO3 was found to be marginally more accurate than a model using [O3] alone for prediction of the course of NEP when compared to NEP measured by the eddy covariance technique. Both higher [O3] and FsO3 were found to reduce NEP. NEP simulated at low, pre-industrial FsO3 (0.5 nmol m-2 s-1) was higher by 24.8% as compared to NEP assessed at current rates of FsO3 (8.32 nmol m-2 s-1). However, NEP simulated at high FsO3 (17 nmol m-2 s-1), likely in the future, was reduced by 14.1% as compared to NEP values at current FsO3. The interaction between environmental factors and stomatal conductance is discussed in this paper.https://iforest.sisef.org/contents/?id=ifor2805-011CarbonCO2 AssimilationModelStomatal Ozone Flux |
| spellingShingle | Jurán S Edwards-Jonášová M Cudlín P Zapletal M Šigut L Grace J Urban O Prediction of ozone effects on net ecosystem production of Norway spruce forest iForest - Biogeosciences and Forestry Carbon CO2 Assimilation Model Stomatal Ozone Flux |
| title | Prediction of ozone effects on net ecosystem production of Norway spruce forest |
| title_full | Prediction of ozone effects on net ecosystem production of Norway spruce forest |
| title_fullStr | Prediction of ozone effects on net ecosystem production of Norway spruce forest |
| title_full_unstemmed | Prediction of ozone effects on net ecosystem production of Norway spruce forest |
| title_short | Prediction of ozone effects on net ecosystem production of Norway spruce forest |
| title_sort | prediction of ozone effects on net ecosystem production of norway spruce forest |
| topic | Carbon CO2 Assimilation Model Stomatal Ozone Flux |
| url | https://iforest.sisef.org/contents/?id=ifor2805-011 |
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