Název: Stem emissions from poplar hybrids grown in a shortrotation plantation contribute to ecosystem balance of nitrous oxide and methane
Autoři: Macháčová, Kateřina ; Kreuzwieser, J. ; Rennenberg, H.
Typ dokumentu: Příspěvky z konference
Konference/Akce: Quo vaditis agriculture, forestry and society under Global Change?, Velké Karlovice (CZ), 20171002
Rok: 2017
Jazyk: eng
Abstrakt: The expansion of short-rotation coppices (SRCs) of fast-growing trees can affect the global balance of greenhouse\ngases (GHGs). These include not only carbon dioxide (CO2) but also methane (CH4) and nitrous oxide\n(N2O), both naturally produced by soil microorganisms. Trees are known to exchange CH4 and N2O with\nthe atmosphere. To date, however, the fluxes of these gases from fast-growing trees have been excluded from\nestimation of the GHGs balance for SRCs. Our objectives were to quantify and scale up CH4 and N2O fluxes\nfrom stems of the fast-growing poplar hybrids Max4 and Monviso at an SRC in southwest Germany. Our\ncase study shows that the stems of both hybrids were sources of N2O and CH4, even though consumption of\nCH4 was also observed. The hybrids did not differ in their exchange capacity. Nitrogen fertilization resulted in\nhigher stem N2O emissions compared to non-fertilized trees. The emissions of N2O and CH4 from stems contributed\nas much as 1.5% and 1.2% of soil N2O emission and soil CH4 uptake, respectively.
Klíčová slova: ecosystem balance; nitrous oxide; poplar hybrids grown; short-rotation plantation; stem emission
Číslo projektu: LO1415 (CEP), GJ17-18112Y (CEP), DAAD-15-03 (CEP)
Poskytovatel projektu: GA MŠk, GA ČR, AV ČR
Zdrojový dokument: Quo vaditis agriculture, forestry and society under global change? Conference proceeding, ISBN 978-80-87902-22-6

Instituce: Ústav výzkumu globální změny AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0280291

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-371524


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav výzkumu globální změny
Konferenční materiály > Příspěvky z konference