Details zur Publikation

Referenztyp Zeitschriften
DOI / URL Link
Titel (primär) Dry habitats sustain high CO2 emissions from temporary ponds across seasons
Autor Obrador, B.; von Schiller, D.; Marcé, R.; Gómez-Gener, L.; Koschorreck, M.; Borrego, C.; Catalán, N.;
Journal / Serie Scientific Reports
Erscheinungsjahr 2018
Department SEEFO;
Band/Volume 8
Sprache englisch;
POF III (gesamt) T31;
Supplements https://static-content.springer.com/esm/art%3A10.1038%2Fs41598-018-20969-y/MediaObjects/41598_2018_20969_MOESM1_ESM.pdf
UFZ Querschnittsthemen RU2;
Abstract Despite the increasing understanding of the magnitude and drivers of carbon gas emissions from inland waters, the relevance of water fluctuation and associated drying on their dynamics is rarely addressed. Here, we quantified CO2 and CH4 fluxes from a set of temporary ponds across seasons. The ponds were in all occasion net CO2 emitters irrespective of the presence or absence of water. While the CO2 fluxes were in the upper range of emissions for freshwater lentic systems, CH4 fluxes were mostly undetectable. Dry habitats substantially contributed to these emissions and were always a source of CO2, whereas inundated habitats acted either as a source or a sink of atmospheric CO2 along the year. Higher concentrations of coloured and humic organic matter in water and sediment were linked to higher CO2 emissions. Composition of the sediment microbial community was related both to dissolved organic matter concentration and composition, but we did not find a direct link with CO2 fluxes. The presence of methanogenic archaea in most ponds suggested the potential for episodic CH4 production and emission. Our results highlight the need for spatially and temporally inclusive approaches that consider the dry phases and habitats to characterize carbon cycling in temporary systems.
ID 19915
dauerhafte UFZ-Verlinkung http://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=19915
Obrador, B., von Schiller, D., Marcé, R., Gómez-Gener, L., Koschorreck, M., Borrego, C., Catalán, N. (2018):
Dry habitats sustain high CO2 emissions from temporary ponds across seasons
Sci. Rep. 8 , art. 3015