Počet záznamů: 1  

Stem emissions from poplar hybrids grown in a shortrotation plantation contribute to ecosystem balance of nitrous oxide and methane

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    0485219 - ÚVGZ 2019 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
    Macháčová, Kateřina - Kreuzwieser, J. - Rennenberg, H.
    Stem emissions from poplar hybrids grown in a shortrotation plantation contribute to ecosystem balance of nitrous oxide and methane.
    Quo vaditis agriculture, forestry and society under global change? Conference proceeding. Brno: Global change research institute, 2017 - (Urban, O.; Šprtová, M.; Klem, K.), s. 43-47. ISBN 978-80-87902-22-6.
    [Quo vaditis agriculture, forestry and society under Global Change? Velké Karlovice (CZ), 02.10.2017-04.10.2017]
    Grant CEP: GA MŠMT(CZ) LO1415; GA ČR(CZ) GJ17-18112Y
    Grant ostatní: AV ČR(CZ) DAAD-15-03
    Program: Bilaterální spolupráce
    Institucionální podpora: RVO:86652079
    Klíčová slova: stem emission * poplar hybrids grown * short-rotation plantation * ecosystem balance * nitrous oxide
    Obor OECD: Plant sciences, botany

    The expansion of short-rotation coppices (SRCs) of fast-growing trees can affect the global balance of greenhouse
    gases (GHGs). These include not only carbon dioxide (CO2) but also methane (CH4) and nitrous oxide
    (N2O), both naturally produced by soil microorganisms. Trees are known to exchange CH4 and N2O with
    the atmosphere. To date, however, the fluxes of these gases from fast-growing trees have been excluded from
    estimation of the GHGs balance for SRCs. Our objectives were to quantify and scale up CH4 and N2O fluxes
    from stems of the fast-growing poplar hybrids Max4 and Monviso at an SRC in southwest Germany. Our
    case study shows that the stems of both hybrids were sources of N2O and CH4, even though consumption of
    CH4 was also observed. The hybrids did not differ in their exchange capacity. Nitrogen fertilization resulted in
    higher stem N2O emissions compared to non-fertilized trees. The emissions of N2O and CH4 from stems contributed
    as much as 1.5% and 1.2% of soil N2O emission and soil CH4 uptake, respectively.
    Trvalý link: http://hdl.handle.net/11104/0280291

     
     
Počet záznamů: 1  

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