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

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

The expansion of short-rotation coppices (SRCs) of fast-growing trees can affect the global balance of greenhousengases (GHGs). These include not only carbon dioxide (CO2) but also methane (CH4) and nitrous oxiden(N2O), both naturally produced by soil microorganisms. Trees are known to exchange CH4 and N2O withnthe atmosphere. To date, however, the fluxes of these gases from fast-growing trees have been excluded fromnestimation of the GHGs balance for SRCs. Our objectives were to quantify and scale up CH4 and N2O fluxesnfrom stems of the fast-growing poplar hybrids Max4 and Monviso at an SRC in southwest Germany. Ourncase study shows that the stems of both hybrids were sources of N2O and CH4, even though consumption ofnCH4 was also observed. The hybrids did not differ in their exchange capacity. Nitrogen fertilization resulted innhigher stem N2O emissions compared to non-fertilized trees. The emissions of N2O and CH4 from stems contributednas much as 1.5% and 1.2% of soil N2O emission and soil CH4 uptake, respectively.

Název v anglickém jazyce

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

Popis výsledku anglicky

The expansion of short-rotation coppices (SRCs) of fast-growing trees can affect the global balance of greenhousengases (GHGs). These include not only carbon dioxide (CO2) but also methane (CH4) and nitrous oxiden(N2O), both naturally produced by soil microorganisms. Trees are known to exchange CH4 and N2O withnthe atmosphere. To date, however, the fluxes of these gases from fast-growing trees have been excluded fromnestimation of the GHGs balance for SRCs. Our objectives were to quantify and scale up CH4 and N2O fluxesnfrom stems of the fast-growing poplar hybrids Max4 and Monviso at an SRC in southwest Germany. Ourncase study shows that the stems of both hybrids were sources of N2O and CH4, even though consumption ofnCH4 was also observed. The hybrids did not differ in their exchange capacity. Nitrogen fertilization resulted innhigher stem N2O emissions compared to non-fertilized trees. The emissions of N2O and CH4 from stems contributednas much as 1.5% and 1.2% of soil N2O emission and soil CH4 uptake, respectively.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10611 - Plant sciences, botany

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)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

Quo vaditis agriculture, forestry and society under global change? Conference proceeding

ISBN

978-80-87902-22-6

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

43-47

Název nakladatele

Global change research institute

Místo vydání

Brno

Místo konání akce

Velké Karlovice

Datum konání akce

2. 10. 2017

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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