Title
Arbuscular mycorrhizal fungi may mitigate the influence of a joint rise of temperature and atmospheric <tex>$CO_{2}$</tex> on soil respiration in grasslands Arbuscular mycorrhizal fungi may mitigate the influence of a joint rise of temperature and atmospheric <tex>$CO_{2}$</tex> on soil respiration in grasslands
Author
Faculty/Department
Faculty of Sciences. Biology
Publication type
article
Publication
Subject
Biology
Source (journal)
International journal of ecology
International journal of ecology
Volume/pages
(2009) , p. 1-10
ISSN
1687-9708
1687-9708
Article Reference
209768
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
We investigated the effects of mycorrhizal colonization and future climate on roots and soil respiration (Rsoil) in model grassland ecosystems. We exposed artificial grassland communities on pasteurized soil (no living arbuscular mycorrhizal fungi (AMF) present) and on pasteurized soil subsequently inoculated with AMF to ambient conditions and to a combination of elevated CO2 and temperature (future climate scenario). After one growing season, the inoculated soil revealed a positive climate effect on AMF root colonization and this elicited a significant AMF x climate scenario interaction on root biomass. Whereas the future climate scenario tended to increase root biomass in the noninoculated soil, the inoculated soil revealed a 30% reduction of root biomass under warming at elevated CO2 (albeit not significant). This resulted in a diminished response of Rsoil to simulated climatic change, suggesting that AMF may contribute to an attenuated stimulation of Rsoil in a warmer, high CO2 world.
Full text (open access)
https://repository.uantwerpen.be/docman/iruaauth/1bcc62/049336ed4d8.pdf
Handle