Stem CH4 and N2O fluxes of Fraxinus excelsior and Populus alba trees along a flooding gradient

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

Stem CH4 and N2O fluxes of Fraxinus excelsior and Populus alba trees along a flooding gradient

Original language description

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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10611 - Plant sciences, botany

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

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

Name of the periodical

Plant and Soil

ISSN

0032-079X

e-ISSN

1573-5036

Volume of the periodical

461

Issue of the periodical within the volume

1-2

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

13

Pages from-to

407-420

UT code for WoS article

000611475100005

EID of the result in the Scopus database

2-s2.0-85099741780