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Fluxes of biogenic volatile organic compounds above temperate Norway spruce forest of the Czech Republic

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F17%3AA1701LZI" target="_blank" >RIV/61988987:17310/17:A1701LZI - isvavai.cz</a>

  • Nalezeny alternativní kódy

    RIV/68081715:_____/17:00463670 RIV/86652079:_____/17:00463670 RIV/62156489:43210/17:43913003

  • Výsledek na webu

    <a href="http://www.sciencedirect.com/science/article/pii/S0168192316303963" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0168192316303963</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.agrformet.2016.10.005" target="_blank" >10.1016/j.agrformet.2016.10.005</a>

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Fluxes of biogenic volatile organic compounds above temperate Norway spruce forest of the Czech Republic

  • Popis výsledku v původním jazyce

    Norway spruce (Picea abies), the most representative forest species in central and northern Europe, has previously been described as a monoterpene emitter. However, past studies have shown variable emission rates. In order to understand emissions at the ecosystem scale, a technique utilizing proton transfer -reaction-time-of-flight (PTR-TOF) mass spectrometry coupled with eddy covariance was applied to determine fluxes of volatile organic compounds and CO2 above a mountainous Norway spruce forest in the Czech Republic during an intensive field campaign in summer. In addition, an Inverse Lagrangian Transport Model was applied to derive fluxes of various monoterpenes using concentrations measured along a vertical canopy profile by wet effluent diffusion denuder. The Model of Emissions of Gases and Aerosols from Nature (MEGAN) was applied using basal emission factors for sun and shade shoots to predict diurnal fluxes and annual monoterpene emission sums for 5 years. The forest showed itself to be a monoterpene emitter up to 2.03 nmol m(-2) s(-1). Isoprene and 2-methyl-3-buten-2-ol (MBO) reached maximum levels during central hours of the day of 1,6 nmol m(-2) s(-1), whereas daily average maximum fluxes were 1.29 nmol m(-2) s(-1) and 0.77 nmol m(-2) s(-1) for monoterpenes and sum of isoprene and MBO, respectively. The relationship between monoterpene and CO2 fluxes revealed that as much as 47% of variance in MT emission is predictable from the actual gross primary production of a spruce ecosystem. Modelled MT fluxes agreed with the measured fluxes in terms of diurnal pattern, particularly when basal emission factors 2.72 nmol m(-2) s(-1) and 0.55 nmol m(-2) s(-1) for sun and shade shoots, respectively, were used. Nevertheless, strong seasonal variability in MT emission was observed. Our results contribute to better understanding emissions of biogenic volatile organic compounds in central Europe.

  • Název v anglickém jazyce

    Fluxes of biogenic volatile organic compounds above temperate Norway spruce forest of the Czech Republic

  • Popis výsledku anglicky

    Norway spruce (Picea abies), the most representative forest species in central and northern Europe, has previously been described as a monoterpene emitter. However, past studies have shown variable emission rates. In order to understand emissions at the ecosystem scale, a technique utilizing proton transfer -reaction-time-of-flight (PTR-TOF) mass spectrometry coupled with eddy covariance was applied to determine fluxes of volatile organic compounds and CO2 above a mountainous Norway spruce forest in the Czech Republic during an intensive field campaign in summer. In addition, an Inverse Lagrangian Transport Model was applied to derive fluxes of various monoterpenes using concentrations measured along a vertical canopy profile by wet effluent diffusion denuder. The Model of Emissions of Gases and Aerosols from Nature (MEGAN) was applied using basal emission factors for sun and shade shoots to predict diurnal fluxes and annual monoterpene emission sums for 5 years. The forest showed itself to be a monoterpene emitter up to 2.03 nmol m(-2) s(-1). Isoprene and 2-methyl-3-buten-2-ol (MBO) reached maximum levels during central hours of the day of 1,6 nmol m(-2) s(-1), whereas daily average maximum fluxes were 1.29 nmol m(-2) s(-1) and 0.77 nmol m(-2) s(-1) for monoterpenes and sum of isoprene and MBO, respectively. The relationship between monoterpene and CO2 fluxes revealed that as much as 47% of variance in MT emission is predictable from the actual gross primary production of a spruce ecosystem. Modelled MT fluxes agreed with the measured fluxes in terms of diurnal pattern, particularly when basal emission factors 2.72 nmol m(-2) s(-1) and 0.55 nmol m(-2) s(-1) for sun and shade shoots, respectively, were used. Nevertheless, strong seasonal variability in MT emission was observed. Our results contribute to better understanding emissions of biogenic volatile organic compounds in central Europe.

Klasifikace

  • Druh

    J<sub>imp</sub> - Článek v periodiku v databázi Web of Science

  • CEP obor

  • OECD FORD obor

    40102 - Forestry

Návaznosti výsledku

  • Projekt

    Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

  • Návaznosti

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Ostatní

  • Rok uplatnění

    2017

  • Kód důvěrnosti údajů

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Údaje specifické pro druh výsledku

  • Název periodika

    AGRICULTURAL AND FOREST METEOROLOGY

  • ISSN

    0168-1923

  • e-ISSN

  • Svazek periodika

    232

  • Číslo periodika v rámci svazku

    15 January 2017

  • Stát vydavatele periodika

    NL - Nizozemsko

  • Počet stran výsledku

    14

  • Strana od-do

    500-513

  • Kód UT WoS článku

    000389089800041

  • EID výsledku v databázi Scopus

    2-s2.0-84991203366