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Forest soil microbial functional patterns and response to a drought and warming event: Key role of climate–plant–soil interactions at a regional scale

descriptionPublicationkeyboard_double_arrow_right Article , Journal , Other literature type 01 Mar 2014 France Publisher:Elsevier BVJournal:Soil Biology and Biochemistry, volume 70, pages 1-4 (issn: 0038-0717,

Authors: Pailler, A.; Vennetier, M.; Torre, Franck; Ripert, C.; Guiral, D.;

doi: 10.1016/j.soilbio.2013.12.003

Forest soil microbial functional patterns and response to a drought and warming event: Key role of climate–plant–soil interactions at a regional scale

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Abstract

Little is known about how spatial and environmental patterns structure soil microbial activities. We investigated, on 47 soil samples collected in Mediterranean forests, the net and interaction effects of climatic-geographic and edaphic variables as well as vegetation cover and composition on soil microbial community-level physiological profiles (CLPPs) assessed by MicrorespTM. The effects of these variables were also analysed on CLPP response to an experimental drought treatment. CLPPs were shown to be mainly driven by climate-plant-soil and plant-soil interactions; even after drought treatment, there was a decrease in microbial activity but no change in CLPPs. Our findings highlight the robustness of these relationships, which need to be assessed within different ecosystems considering various spatial scales to reliably predict climate change effects on terrestrial ecosystems

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Keywords

[SDE] Environmental Sciences, 570, CLPP, Microresp (TM), MICROBIAL FUNCTIONS, CLIMATE CHANGE, [ SDE ] Environmental Sciences, Microbial community, ABOVEGROUND-BELOWGROUND INTERACTIONS, RELATION SOL PLANTE ATMOSPHERE, MEDITERRANEAN SOILS, VEGETATION MEDITERRANEENNE, DROUGHT, ECOLOGIE MICROBIENNE, Drought treatment, SECHERESSE, MICRORESPTM, interactions, [SDE] Sciences de l'environnement, Mediterranean soils, MICROBIOLOGIE, CHANGEMENT CLIMATIQUE, Aboveground-belowground, [SDE]Environmental Sciences, RELATION SOL PLANTE, FORET MEDITERRANEENNE, MEDITERRANEAN FOREST

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