The Influence of Ozone on Net Ecosystem Production of a Ryegrass–Clover Mixture under Field Conditions
In order to understand the effect of phytotoxic tropospheric ozone (O<sub<3</sub<) on terrestrial vegetation, we quantified the impact of current O<sub<3</sub< concentration ([O<sub<3</sub<]) on net ecosystem production (NEP) when compared to the conditions of the...
Ausführliche Beschreibung
Autor*in: |
Thomas Agyei [verfasserIn] Stanislav Juráň [verfasserIn] Magda Edwards-Jonášová [verfasserIn] Milan Fischer [verfasserIn] Marian Švik [verfasserIn] Kateřina Komínková [verfasserIn] Kojo Kwakye Ofori-Amanfo [verfasserIn] Michal V. Marek [verfasserIn] John Grace [verfasserIn] Otmar Urban [verfasserIn] |
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E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2021 |
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Übergeordnetes Werk: |
In: Atmosphere - MDPI AG, 2011, 12(2021), 12, p 1629 |
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Übergeordnetes Werk: |
volume:12 ; year:2021 ; number:12, p 1629 |
Links: |
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DOI / URN: |
10.3390/atmos12121629 |
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Katalog-ID: |
DOAJ018741940 |
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520 | |a In order to understand the effect of phytotoxic tropospheric ozone (O<sub<3</sub<) on terrestrial vegetation, we quantified the impact of current O<sub<3</sub< concentration ([O<sub<3</sub<]) on net ecosystem production (NEP) when compared to the conditions of the pre-industrial era. We compared and tested linear mixed-effects models based on [O<sub<3</sub<] and stomatal O<sub<3</sub< flux (<i<F</i<<sub<sto</sub<). The managed ryegrass–clover (<i<Lolium perenne</i< and <i<Trifolium pratense</i<) mixture was grown on arable land in the Czech Republic, Central Europe. Values of [O<sub<3</sub<] and <i<F</i<<sub<sto</sub< were measured and calculated based on resistance analogy, respectively, while NEP was calculated from eddy covariance CO<sub<2</sub< fluxes. We found the <i<F</i<<sub<sto</sub<-based model more precise when compared to measured NEP. High <i<F</i<<sub<sto</sub< was found even at low [O<sub<3</sub<], while broad summer maximum of [O<sub<3</sub<] was not necessarily followed by significant NEP decline, due to low soil water content leading to a low stomatal conductivity and <i<F</i<<sub<sto</sub<. Comparing to low pre-industrial O<sub<3</sub< conditions, current levels of O<sub<3</sub< resulted in the reduction of cumulative NEP over the entire growing season, up to 29.7 and 13.5% when the [O<sub<3</sub<]-based and <i<F</i<<sub<sto</sub<-based model was applied, respectively. During the growing season, an O<sub<3</sub<-induced reduction of NEP ranged between 13.1% in May and 26.2% in July when compared to pre-industrial <i<F</i<<sub<sto</sub< levels. Looking to the future, high [O<sub<3</sub<] and <i<F</i<<sub<sto</sub< may lead to the reduction of current NEP by approximately 13.3% on average during the growing season, but may increase by up to 61–86.6% in autumn, indicating further O<sub<3</sub<-induced acceleration of the senescence. These findings indicate the importance of <i<F</i<<sub<sto</sub< and its inclusion into the models estimating O<sub<3</sub< effects on terrestrial vegetation. The interaction between environmental factors and stomatal conductance is therefore discussed in detail. | ||
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10.3390/atmos12121629 doi (DE-627)DOAJ018741940 (DE-599)DOAJa38efcffc49c46f4ae303e606a9d5734 DE-627 ger DE-627 rakwb eng QC851-999 Thomas Agyei verfasserin aut The Influence of Ozone on Net Ecosystem Production of a Ryegrass–Clover Mixture under Field Conditions 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In order to understand the effect of phytotoxic tropospheric ozone (O<sub<3</sub<) on terrestrial vegetation, we quantified the impact of current O<sub<3</sub< concentration ([O<sub<3</sub<]) on net ecosystem production (NEP) when compared to the conditions of the pre-industrial era. We compared and tested linear mixed-effects models based on [O<sub<3</sub<] and stomatal O<sub<3</sub< flux (<i<F</i<<sub<sto</sub<). The managed ryegrass–clover (<i<Lolium perenne</i< and <i<Trifolium pratense</i<) mixture was grown on arable land in the Czech Republic, Central Europe. Values of [O<sub<3</sub<] and <i<F</i<<sub<sto</sub< were measured and calculated based on resistance analogy, respectively, while NEP was calculated from eddy covariance CO<sub<2</sub< fluxes. We found the <i<F</i<<sub<sto</sub<-based model more precise when compared to measured NEP. High <i<F</i<<sub<sto</sub< was found even at low [O<sub<3</sub<], while broad summer maximum of [O<sub<3</sub<] was not necessarily followed by significant NEP decline, due to low soil water content leading to a low stomatal conductivity and <i<F</i<<sub<sto</sub<. Comparing to low pre-industrial O<sub<3</sub< conditions, current levels of O<sub<3</sub< resulted in the reduction of cumulative NEP over the entire growing season, up to 29.7 and 13.5% when the [O<sub<3</sub<]-based and <i<F</i<<sub<sto</sub<-based model was applied, respectively. During the growing season, an O<sub<3</sub<-induced reduction of NEP ranged between 13.1% in May and 26.2% in July when compared to pre-industrial <i<F</i<<sub<sto</sub< levels. Looking to the future, high [O<sub<3</sub<] and <i<F</i<<sub<sto</sub< may lead to the reduction of current NEP by approximately 13.3% on average during the growing season, but may increase by up to 61–86.6% in autumn, indicating further O<sub<3</sub<-induced acceleration of the senescence. These findings indicate the importance of <i<F</i<<sub<sto</sub< and its inclusion into the models estimating O<sub<3</sub< effects on terrestrial vegetation. The interaction between environmental factors and stomatal conductance is therefore discussed in detail. eddy covariance linear mixed-effects model pre-industrial O<sub<3</sub< conditions seasonal carbon uptake stomatal ozone flux Meteorology. Climatology Stanislav Juráň verfasserin aut Magda Edwards-Jonášová verfasserin aut Milan Fischer verfasserin aut Marian Švik verfasserin aut Kateřina Komínková verfasserin aut Kojo Kwakye Ofori-Amanfo verfasserin aut Michal V. Marek verfasserin aut John Grace verfasserin aut Otmar Urban verfasserin aut In Atmosphere MDPI AG, 2011 12(2021), 12, p 1629 (DE-627)657584010 (DE-600)2605928-9 20734433 nnns volume:12 year:2021 number:12, p 1629 https://doi.org/10.3390/atmos12121629 kostenfrei https://doaj.org/article/a38efcffc49c46f4ae303e606a9d5734 kostenfrei https://www.mdpi.com/2073-4433/12/12/1629 kostenfrei https://doaj.org/toc/2073-4433 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2021 12, p 1629 |
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10.3390/atmos12121629 doi (DE-627)DOAJ018741940 (DE-599)DOAJa38efcffc49c46f4ae303e606a9d5734 DE-627 ger DE-627 rakwb eng QC851-999 Thomas Agyei verfasserin aut The Influence of Ozone on Net Ecosystem Production of a Ryegrass–Clover Mixture under Field Conditions 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In order to understand the effect of phytotoxic tropospheric ozone (O<sub<3</sub<) on terrestrial vegetation, we quantified the impact of current O<sub<3</sub< concentration ([O<sub<3</sub<]) on net ecosystem production (NEP) when compared to the conditions of the pre-industrial era. We compared and tested linear mixed-effects models based on [O<sub<3</sub<] and stomatal O<sub<3</sub< flux (<i<F</i<<sub<sto</sub<). The managed ryegrass–clover (<i<Lolium perenne</i< and <i<Trifolium pratense</i<) mixture was grown on arable land in the Czech Republic, Central Europe. Values of [O<sub<3</sub<] and <i<F</i<<sub<sto</sub< were measured and calculated based on resistance analogy, respectively, while NEP was calculated from eddy covariance CO<sub<2</sub< fluxes. We found the <i<F</i<<sub<sto</sub<-based model more precise when compared to measured NEP. High <i<F</i<<sub<sto</sub< was found even at low [O<sub<3</sub<], while broad summer maximum of [O<sub<3</sub<] was not necessarily followed by significant NEP decline, due to low soil water content leading to a low stomatal conductivity and <i<F</i<<sub<sto</sub<. Comparing to low pre-industrial O<sub<3</sub< conditions, current levels of O<sub<3</sub< resulted in the reduction of cumulative NEP over the entire growing season, up to 29.7 and 13.5% when the [O<sub<3</sub<]-based and <i<F</i<<sub<sto</sub<-based model was applied, respectively. During the growing season, an O<sub<3</sub<-induced reduction of NEP ranged between 13.1% in May and 26.2% in July when compared to pre-industrial <i<F</i<<sub<sto</sub< levels. Looking to the future, high [O<sub<3</sub<] and <i<F</i<<sub<sto</sub< may lead to the reduction of current NEP by approximately 13.3% on average during the growing season, but may increase by up to 61–86.6% in autumn, indicating further O<sub<3</sub<-induced acceleration of the senescence. These findings indicate the importance of <i<F</i<<sub<sto</sub< and its inclusion into the models estimating O<sub<3</sub< effects on terrestrial vegetation. The interaction between environmental factors and stomatal conductance is therefore discussed in detail. eddy covariance linear mixed-effects model pre-industrial O<sub<3</sub< conditions seasonal carbon uptake stomatal ozone flux Meteorology. Climatology Stanislav Juráň verfasserin aut Magda Edwards-Jonášová verfasserin aut Milan Fischer verfasserin aut Marian Švik verfasserin aut Kateřina Komínková verfasserin aut Kojo Kwakye Ofori-Amanfo verfasserin aut Michal V. Marek verfasserin aut John Grace verfasserin aut Otmar Urban verfasserin aut In Atmosphere MDPI AG, 2011 12(2021), 12, p 1629 (DE-627)657584010 (DE-600)2605928-9 20734433 nnns volume:12 year:2021 number:12, p 1629 https://doi.org/10.3390/atmos12121629 kostenfrei https://doaj.org/article/a38efcffc49c46f4ae303e606a9d5734 kostenfrei https://www.mdpi.com/2073-4433/12/12/1629 kostenfrei https://doaj.org/toc/2073-4433 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2021 12, p 1629 |
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10.3390/atmos12121629 doi (DE-627)DOAJ018741940 (DE-599)DOAJa38efcffc49c46f4ae303e606a9d5734 DE-627 ger DE-627 rakwb eng QC851-999 Thomas Agyei verfasserin aut The Influence of Ozone on Net Ecosystem Production of a Ryegrass–Clover Mixture under Field Conditions 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In order to understand the effect of phytotoxic tropospheric ozone (O<sub<3</sub<) on terrestrial vegetation, we quantified the impact of current O<sub<3</sub< concentration ([O<sub<3</sub<]) on net ecosystem production (NEP) when compared to the conditions of the pre-industrial era. We compared and tested linear mixed-effects models based on [O<sub<3</sub<] and stomatal O<sub<3</sub< flux (<i<F</i<<sub<sto</sub<). The managed ryegrass–clover (<i<Lolium perenne</i< and <i<Trifolium pratense</i<) mixture was grown on arable land in the Czech Republic, Central Europe. Values of [O<sub<3</sub<] and <i<F</i<<sub<sto</sub< were measured and calculated based on resistance analogy, respectively, while NEP was calculated from eddy covariance CO<sub<2</sub< fluxes. We found the <i<F</i<<sub<sto</sub<-based model more precise when compared to measured NEP. High <i<F</i<<sub<sto</sub< was found even at low [O<sub<3</sub<], while broad summer maximum of [O<sub<3</sub<] was not necessarily followed by significant NEP decline, due to low soil water content leading to a low stomatal conductivity and <i<F</i<<sub<sto</sub<. Comparing to low pre-industrial O<sub<3</sub< conditions, current levels of O<sub<3</sub< resulted in the reduction of cumulative NEP over the entire growing season, up to 29.7 and 13.5% when the [O<sub<3</sub<]-based and <i<F</i<<sub<sto</sub<-based model was applied, respectively. During the growing season, an O<sub<3</sub<-induced reduction of NEP ranged between 13.1% in May and 26.2% in July when compared to pre-industrial <i<F</i<<sub<sto</sub< levels. Looking to the future, high [O<sub<3</sub<] and <i<F</i<<sub<sto</sub< may lead to the reduction of current NEP by approximately 13.3% on average during the growing season, but may increase by up to 61–86.6% in autumn, indicating further O<sub<3</sub<-induced acceleration of the senescence. These findings indicate the importance of <i<F</i<<sub<sto</sub< and its inclusion into the models estimating O<sub<3</sub< effects on terrestrial vegetation. The interaction between environmental factors and stomatal conductance is therefore discussed in detail. eddy covariance linear mixed-effects model pre-industrial O<sub<3</sub< conditions seasonal carbon uptake stomatal ozone flux Meteorology. Climatology Stanislav Juráň verfasserin aut Magda Edwards-Jonášová verfasserin aut Milan Fischer verfasserin aut Marian Švik verfasserin aut Kateřina Komínková verfasserin aut Kojo Kwakye Ofori-Amanfo verfasserin aut Michal V. Marek verfasserin aut John Grace verfasserin aut Otmar Urban verfasserin aut In Atmosphere MDPI AG, 2011 12(2021), 12, p 1629 (DE-627)657584010 (DE-600)2605928-9 20734433 nnns volume:12 year:2021 number:12, p 1629 https://doi.org/10.3390/atmos12121629 kostenfrei https://doaj.org/article/a38efcffc49c46f4ae303e606a9d5734 kostenfrei https://www.mdpi.com/2073-4433/12/12/1629 kostenfrei https://doaj.org/toc/2073-4433 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2021 12, p 1629 |
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10.3390/atmos12121629 doi (DE-627)DOAJ018741940 (DE-599)DOAJa38efcffc49c46f4ae303e606a9d5734 DE-627 ger DE-627 rakwb eng QC851-999 Thomas Agyei verfasserin aut The Influence of Ozone on Net Ecosystem Production of a Ryegrass–Clover Mixture under Field Conditions 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In order to understand the effect of phytotoxic tropospheric ozone (O<sub<3</sub<) on terrestrial vegetation, we quantified the impact of current O<sub<3</sub< concentration ([O<sub<3</sub<]) on net ecosystem production (NEP) when compared to the conditions of the pre-industrial era. We compared and tested linear mixed-effects models based on [O<sub<3</sub<] and stomatal O<sub<3</sub< flux (<i<F</i<<sub<sto</sub<). The managed ryegrass–clover (<i<Lolium perenne</i< and <i<Trifolium pratense</i<) mixture was grown on arable land in the Czech Republic, Central Europe. Values of [O<sub<3</sub<] and <i<F</i<<sub<sto</sub< were measured and calculated based on resistance analogy, respectively, while NEP was calculated from eddy covariance CO<sub<2</sub< fluxes. We found the <i<F</i<<sub<sto</sub<-based model more precise when compared to measured NEP. High <i<F</i<<sub<sto</sub< was found even at low [O<sub<3</sub<], while broad summer maximum of [O<sub<3</sub<] was not necessarily followed by significant NEP decline, due to low soil water content leading to a low stomatal conductivity and <i<F</i<<sub<sto</sub<. Comparing to low pre-industrial O<sub<3</sub< conditions, current levels of O<sub<3</sub< resulted in the reduction of cumulative NEP over the entire growing season, up to 29.7 and 13.5% when the [O<sub<3</sub<]-based and <i<F</i<<sub<sto</sub<-based model was applied, respectively. During the growing season, an O<sub<3</sub<-induced reduction of NEP ranged between 13.1% in May and 26.2% in July when compared to pre-industrial <i<F</i<<sub<sto</sub< levels. Looking to the future, high [O<sub<3</sub<] and <i<F</i<<sub<sto</sub< may lead to the reduction of current NEP by approximately 13.3% on average during the growing season, but may increase by up to 61–86.6% in autumn, indicating further O<sub<3</sub<-induced acceleration of the senescence. These findings indicate the importance of <i<F</i<<sub<sto</sub< and its inclusion into the models estimating O<sub<3</sub< effects on terrestrial vegetation. The interaction between environmental factors and stomatal conductance is therefore discussed in detail. eddy covariance linear mixed-effects model pre-industrial O<sub<3</sub< conditions seasonal carbon uptake stomatal ozone flux Meteorology. Climatology Stanislav Juráň verfasserin aut Magda Edwards-Jonášová verfasserin aut Milan Fischer verfasserin aut Marian Švik verfasserin aut Kateřina Komínková verfasserin aut Kojo Kwakye Ofori-Amanfo verfasserin aut Michal V. Marek verfasserin aut John Grace verfasserin aut Otmar Urban verfasserin aut In Atmosphere MDPI AG, 2011 12(2021), 12, p 1629 (DE-627)657584010 (DE-600)2605928-9 20734433 nnns volume:12 year:2021 number:12, p 1629 https://doi.org/10.3390/atmos12121629 kostenfrei https://doaj.org/article/a38efcffc49c46f4ae303e606a9d5734 kostenfrei https://www.mdpi.com/2073-4433/12/12/1629 kostenfrei https://doaj.org/toc/2073-4433 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2021 12, p 1629 |
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10.3390/atmos12121629 doi (DE-627)DOAJ018741940 (DE-599)DOAJa38efcffc49c46f4ae303e606a9d5734 DE-627 ger DE-627 rakwb eng QC851-999 Thomas Agyei verfasserin aut The Influence of Ozone on Net Ecosystem Production of a Ryegrass–Clover Mixture under Field Conditions 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In order to understand the effect of phytotoxic tropospheric ozone (O<sub<3</sub<) on terrestrial vegetation, we quantified the impact of current O<sub<3</sub< concentration ([O<sub<3</sub<]) on net ecosystem production (NEP) when compared to the conditions of the pre-industrial era. We compared and tested linear mixed-effects models based on [O<sub<3</sub<] and stomatal O<sub<3</sub< flux (<i<F</i<<sub<sto</sub<). The managed ryegrass–clover (<i<Lolium perenne</i< and <i<Trifolium pratense</i<) mixture was grown on arable land in the Czech Republic, Central Europe. Values of [O<sub<3</sub<] and <i<F</i<<sub<sto</sub< were measured and calculated based on resistance analogy, respectively, while NEP was calculated from eddy covariance CO<sub<2</sub< fluxes. We found the <i<F</i<<sub<sto</sub<-based model more precise when compared to measured NEP. High <i<F</i<<sub<sto</sub< was found even at low [O<sub<3</sub<], while broad summer maximum of [O<sub<3</sub<] was not necessarily followed by significant NEP decline, due to low soil water content leading to a low stomatal conductivity and <i<F</i<<sub<sto</sub<. Comparing to low pre-industrial O<sub<3</sub< conditions, current levels of O<sub<3</sub< resulted in the reduction of cumulative NEP over the entire growing season, up to 29.7 and 13.5% when the [O<sub<3</sub<]-based and <i<F</i<<sub<sto</sub<-based model was applied, respectively. During the growing season, an O<sub<3</sub<-induced reduction of NEP ranged between 13.1% in May and 26.2% in July when compared to pre-industrial <i<F</i<<sub<sto</sub< levels. Looking to the future, high [O<sub<3</sub<] and <i<F</i<<sub<sto</sub< may lead to the reduction of current NEP by approximately 13.3% on average during the growing season, but may increase by up to 61–86.6% in autumn, indicating further O<sub<3</sub<-induced acceleration of the senescence. These findings indicate the importance of <i<F</i<<sub<sto</sub< and its inclusion into the models estimating O<sub<3</sub< effects on terrestrial vegetation. The interaction between environmental factors and stomatal conductance is therefore discussed in detail. eddy covariance linear mixed-effects model pre-industrial O<sub<3</sub< conditions seasonal carbon uptake stomatal ozone flux Meteorology. Climatology Stanislav Juráň verfasserin aut Magda Edwards-Jonášová verfasserin aut Milan Fischer verfasserin aut Marian Švik verfasserin aut Kateřina Komínková verfasserin aut Kojo Kwakye Ofori-Amanfo verfasserin aut Michal V. Marek verfasserin aut John Grace verfasserin aut Otmar Urban verfasserin aut In Atmosphere MDPI AG, 2011 12(2021), 12, p 1629 (DE-627)657584010 (DE-600)2605928-9 20734433 nnns volume:12 year:2021 number:12, p 1629 https://doi.org/10.3390/atmos12121629 kostenfrei https://doaj.org/article/a38efcffc49c46f4ae303e606a9d5734 kostenfrei https://www.mdpi.com/2073-4433/12/12/1629 kostenfrei https://doaj.org/toc/2073-4433 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2021 12, p 1629 |
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Thomas Agyei @@aut@@ Stanislav Juráň @@aut@@ Magda Edwards-Jonášová @@aut@@ Milan Fischer @@aut@@ Marian Švik @@aut@@ Kateřina Komínková @@aut@@ Kojo Kwakye Ofori-Amanfo @@aut@@ Michal V. Marek @@aut@@ John Grace @@aut@@ Otmar Urban @@aut@@ |
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influence of ozone on net ecosystem production of a ryegrass–clover mixture under field conditions |
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The Influence of Ozone on Net Ecosystem Production of a Ryegrass–Clover Mixture under Field Conditions |
abstract |
In order to understand the effect of phytotoxic tropospheric ozone (O<sub<3</sub<) on terrestrial vegetation, we quantified the impact of current O<sub<3</sub< concentration ([O<sub<3</sub<]) on net ecosystem production (NEP) when compared to the conditions of the pre-industrial era. We compared and tested linear mixed-effects models based on [O<sub<3</sub<] and stomatal O<sub<3</sub< flux (<i<F</i<<sub<sto</sub<). The managed ryegrass–clover (<i<Lolium perenne</i< and <i<Trifolium pratense</i<) mixture was grown on arable land in the Czech Republic, Central Europe. Values of [O<sub<3</sub<] and <i<F</i<<sub<sto</sub< were measured and calculated based on resistance analogy, respectively, while NEP was calculated from eddy covariance CO<sub<2</sub< fluxes. We found the <i<F</i<<sub<sto</sub<-based model more precise when compared to measured NEP. High <i<F</i<<sub<sto</sub< was found even at low [O<sub<3</sub<], while broad summer maximum of [O<sub<3</sub<] was not necessarily followed by significant NEP decline, due to low soil water content leading to a low stomatal conductivity and <i<F</i<<sub<sto</sub<. Comparing to low pre-industrial O<sub<3</sub< conditions, current levels of O<sub<3</sub< resulted in the reduction of cumulative NEP over the entire growing season, up to 29.7 and 13.5% when the [O<sub<3</sub<]-based and <i<F</i<<sub<sto</sub<-based model was applied, respectively. During the growing season, an O<sub<3</sub<-induced reduction of NEP ranged between 13.1% in May and 26.2% in July when compared to pre-industrial <i<F</i<<sub<sto</sub< levels. Looking to the future, high [O<sub<3</sub<] and <i<F</i<<sub<sto</sub< may lead to the reduction of current NEP by approximately 13.3% on average during the growing season, but may increase by up to 61–86.6% in autumn, indicating further O<sub<3</sub<-induced acceleration of the senescence. These findings indicate the importance of <i<F</i<<sub<sto</sub< and its inclusion into the models estimating O<sub<3</sub< effects on terrestrial vegetation. The interaction between environmental factors and stomatal conductance is therefore discussed in detail. |
abstractGer |
In order to understand the effect of phytotoxic tropospheric ozone (O<sub<3</sub<) on terrestrial vegetation, we quantified the impact of current O<sub<3</sub< concentration ([O<sub<3</sub<]) on net ecosystem production (NEP) when compared to the conditions of the pre-industrial era. We compared and tested linear mixed-effects models based on [O<sub<3</sub<] and stomatal O<sub<3</sub< flux (<i<F</i<<sub<sto</sub<). The managed ryegrass–clover (<i<Lolium perenne</i< and <i<Trifolium pratense</i<) mixture was grown on arable land in the Czech Republic, Central Europe. Values of [O<sub<3</sub<] and <i<F</i<<sub<sto</sub< were measured and calculated based on resistance analogy, respectively, while NEP was calculated from eddy covariance CO<sub<2</sub< fluxes. We found the <i<F</i<<sub<sto</sub<-based model more precise when compared to measured NEP. High <i<F</i<<sub<sto</sub< was found even at low [O<sub<3</sub<], while broad summer maximum of [O<sub<3</sub<] was not necessarily followed by significant NEP decline, due to low soil water content leading to a low stomatal conductivity and <i<F</i<<sub<sto</sub<. Comparing to low pre-industrial O<sub<3</sub< conditions, current levels of O<sub<3</sub< resulted in the reduction of cumulative NEP over the entire growing season, up to 29.7 and 13.5% when the [O<sub<3</sub<]-based and <i<F</i<<sub<sto</sub<-based model was applied, respectively. During the growing season, an O<sub<3</sub<-induced reduction of NEP ranged between 13.1% in May and 26.2% in July when compared to pre-industrial <i<F</i<<sub<sto</sub< levels. Looking to the future, high [O<sub<3</sub<] and <i<F</i<<sub<sto</sub< may lead to the reduction of current NEP by approximately 13.3% on average during the growing season, but may increase by up to 61–86.6% in autumn, indicating further O<sub<3</sub<-induced acceleration of the senescence. These findings indicate the importance of <i<F</i<<sub<sto</sub< and its inclusion into the models estimating O<sub<3</sub< effects on terrestrial vegetation. The interaction between environmental factors and stomatal conductance is therefore discussed in detail. |
abstract_unstemmed |
In order to understand the effect of phytotoxic tropospheric ozone (O<sub<3</sub<) on terrestrial vegetation, we quantified the impact of current O<sub<3</sub< concentration ([O<sub<3</sub<]) on net ecosystem production (NEP) when compared to the conditions of the pre-industrial era. We compared and tested linear mixed-effects models based on [O<sub<3</sub<] and stomatal O<sub<3</sub< flux (<i<F</i<<sub<sto</sub<). The managed ryegrass–clover (<i<Lolium perenne</i< and <i<Trifolium pratense</i<) mixture was grown on arable land in the Czech Republic, Central Europe. Values of [O<sub<3</sub<] and <i<F</i<<sub<sto</sub< were measured and calculated based on resistance analogy, respectively, while NEP was calculated from eddy covariance CO<sub<2</sub< fluxes. We found the <i<F</i<<sub<sto</sub<-based model more precise when compared to measured NEP. High <i<F</i<<sub<sto</sub< was found even at low [O<sub<3</sub<], while broad summer maximum of [O<sub<3</sub<] was not necessarily followed by significant NEP decline, due to low soil water content leading to a low stomatal conductivity and <i<F</i<<sub<sto</sub<. Comparing to low pre-industrial O<sub<3</sub< conditions, current levels of O<sub<3</sub< resulted in the reduction of cumulative NEP over the entire growing season, up to 29.7 and 13.5% when the [O<sub<3</sub<]-based and <i<F</i<<sub<sto</sub<-based model was applied, respectively. During the growing season, an O<sub<3</sub<-induced reduction of NEP ranged between 13.1% in May and 26.2% in July when compared to pre-industrial <i<F</i<<sub<sto</sub< levels. Looking to the future, high [O<sub<3</sub<] and <i<F</i<<sub<sto</sub< may lead to the reduction of current NEP by approximately 13.3% on average during the growing season, but may increase by up to 61–86.6% in autumn, indicating further O<sub<3</sub<-induced acceleration of the senescence. These findings indicate the importance of <i<F</i<<sub<sto</sub< and its inclusion into the models estimating O<sub<3</sub< effects on terrestrial vegetation. The interaction between environmental factors and stomatal conductance is therefore discussed in detail. |
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