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Original title:
Stem emissions from poplar hybrids grown in a shortrotation plantation contribute to ecosystem balance of nitrous oxide and methane
Authors: Macháčová, Kateřina ; Kreuzwieser, J. ; Rennenberg, H.
Document type: Papers
Conference/Event: Quo vaditis agriculture, forestry and society under Global Change?, Velké Karlovice (CZ), 20171002
Year: 2017
Language: eng
Abstract: 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.
Keywords: ecosystem balance; nitrous oxide; poplar hybrids grown; short-rotation plantation; stem emission
Project no.: LO1415 (CEP), GJ17-18112Y (CEP), DAAD-15-03 (CEP)
Funding provider: GA MŠk, GA ČR, AV ČR
Host item entry: Quo vaditis agriculture, forestry and society under global change? Conference proceeding, ISBN 978-80-87902-22-6
Institution: Global Change Research Institute AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0280291
Permalink: http://www.nusl.cz/ntk/nusl-371524
The record appears in these collections:
Research > Institutes ASCR > Global Change Research Institute
Conference materials > Papers
Authors: Macháčová, Kateřina ; Kreuzwieser, J. ; Rennenberg, H.
Document type: Papers
Conference/Event: Quo vaditis agriculture, forestry and society under Global Change?, Velké Karlovice (CZ), 20171002
Year: 2017
Language: eng
Abstract: 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.
Keywords: ecosystem balance; nitrous oxide; poplar hybrids grown; short-rotation plantation; stem emission
Project no.: LO1415 (CEP), GJ17-18112Y (CEP), DAAD-15-03 (CEP)
Funding provider: GA MŠk, GA ČR, AV ČR
Host item entry: Quo vaditis agriculture, forestry and society under global change? Conference proceeding, ISBN 978-80-87902-22-6
Institution: Global Change Research Institute AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0280291
Permalink: http://www.nusl.cz/ntk/nusl-371524
The record appears in these collections:
Research > Institutes ASCR > Global Change Research Institute
Conference materials > Papers
Record created 2018-03-07, last modified 2021-11-24