Title
No signs of thermal acclimation of heterotrophic respiration from peat soils exposed to different water levels No signs of thermal acclimation of heterotrophic respiration from peat soils exposed to different water levels
Author
Faculty/Department
Faculty of Sciences. Biology
Publication type
article
Publication
Oxford ,
Subject
Biology
Source (journal)
Soil biology and biochemistry. - Oxford
Volume/pages
41(2009) :9 , p. 2014-2016
ISSN
0038-0717
ISI
000269995100032
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
In a mesocosm experiment, with bare peat soils exposed to different water levels (WL), we examined whether heterotrophic respiration (Rh) acclimated to a 3 °C temperature increase. Across all WLs, Rh at 15 °C was never lower in the heated treatment than in the unheated treatment, indicating that Rh did not acclimate to the warmer conditions. We hypothesize that this lack of thermal acclimation is due to the unlimited substrate availability in these organic soils. These results imply that peat soils may exhibit a sustained positive feedback to global warming.
E-info
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Full text (open access)
https://repository.uantwerpen.be/docman/irua/121fd9/77658.pdf
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