Stem CH4 and N2O fluxes of Fraxinus excelsior and Populus alba trees along a flooding gradient
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F21%3A00543385" target="_blank" >RIV/86652079:_____/21:00543385 - isvavai.cz</a>
Výsledek na webu
<a href="https://link.springer.com/article/10.1007/s11104-020-04818-4" target="_blank" >https://link.springer.com/article/10.1007/s11104-020-04818-4</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11104-020-04818-4" target="_blank" >10.1007/s11104-020-04818-4</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Stem CH4 and N2O fluxes of Fraxinus excelsior and Populus alba trees along a flooding gradient
Popis výsledku v původním jazyce
Aims Methane (CH4) and nitrous oxide (N2O) fluxes from tree stems are still poorly quantified in temperate floodplain forests. Methods Methane and N2O fluxes were repeatedly measured at 0.3, 1.6 and 3.6 m stem height at three sites along a landscape gradient ranging from non-flooded to frequently flooded forest sites. The non-flooded forest was dominated by Fraxinus excelsior and the infrequently and frequently flooded sites by Populus alba. Results Stem surfaces were net CH4 and N2O sources at all sites. The CH4 source strength increased towards the wetter sites (non-flooded 2.51 +/- 12.71, infrequently-flooded 5.2 +/- 17.26, and frequently-flooded 11.15 +/- 24.04 mu g-C-m(-2) h(-1)), but flooding had no immanent effects on CH4 and N2O fluxes. Methane fluxes from poplar stems were highest at the stem base (0.3 m) and decreased with increasing measurement height. Methane fluxes from ash stems were lowest at the stem base and gradually increased until 3.6 m height. Nitrous oxide fluxes were low and did not show clear spatial patterns. The presence of mosses had no significant effects on CH4 and N2O fluxes. Conclusions Stem fluxes were small when compared to the corresponding soil fluxes at the non-flooded and infrequently flooded site, but significantly reduced the soil CH4 sink capacity at the frequently-flooded site. Methane flux strongly varied between 0.3 and 3.6 m stem height and showed distinctive tree species specific patterns. Our results therefore suggest that measuring at more than a single location near the stem base is inevitable to obtain any reliable CH4 or N2O flux estimate of a whole tree stem.
Název v anglickém jazyce
Stem CH4 and N2O fluxes of Fraxinus excelsior and Populus alba trees along a flooding gradient
Popis výsledku anglicky
Aims Methane (CH4) and nitrous oxide (N2O) fluxes from tree stems are still poorly quantified in temperate floodplain forests. Methods Methane and N2O fluxes were repeatedly measured at 0.3, 1.6 and 3.6 m stem height at three sites along a landscape gradient ranging from non-flooded to frequently flooded forest sites. The non-flooded forest was dominated by Fraxinus excelsior and the infrequently and frequently flooded sites by Populus alba. Results Stem surfaces were net CH4 and N2O sources at all sites. The CH4 source strength increased towards the wetter sites (non-flooded 2.51 +/- 12.71, infrequently-flooded 5.2 +/- 17.26, and frequently-flooded 11.15 +/- 24.04 mu g-C-m(-2) h(-1)), but flooding had no immanent effects on CH4 and N2O fluxes. Methane fluxes from poplar stems were highest at the stem base (0.3 m) and decreased with increasing measurement height. Methane fluxes from ash stems were lowest at the stem base and gradually increased until 3.6 m height. Nitrous oxide fluxes were low and did not show clear spatial patterns. The presence of mosses had no significant effects on CH4 and N2O fluxes. Conclusions Stem fluxes were small when compared to the corresponding soil fluxes at the non-flooded and infrequently flooded site, but significantly reduced the soil CH4 sink capacity at the frequently-flooded site. Methane flux strongly varied between 0.3 and 3.6 m stem height and showed distinctive tree species specific patterns. Our results therefore suggest that measuring at more than a single location near the stem base is inevitable to obtain any reliable CH4 or N2O flux estimate of a whole tree stem.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10611 - Plant sciences, botany
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
2021
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Plant and Soil
ISSN
0032-079X
e-ISSN
1573-5036
Svazek periodika
461
Číslo periodika v rámci svazku
1-2
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
13
Strana od-do
407-420
Kód UT WoS článku
000611475100005
EID výsledku v databázi Scopus
2-s2.0-85099741780