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Microclimatological consequences for plant and microbial composition in Sphagnum-dominated peatlands
University of Utrecht, Netherlands.
Netherlands Institute of Ecology (NIOO-KNAW), Netherlands .
Linköping University, The Tema Institute, Department of Water and Environmental Studies. Linköping University, Faculty of Arts and Sciences. Linköping University, Department of Clinical and Experimental Medicine, Division of Microbiology and Molecular Medicine. Linköping University, Faculty of Health Sciences.ORCID iD: 0000-0002-1927-4656
University of Bayreuth, Germany .
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2014 (English)In: Boreal environment research, ISSN 1239-6095, Vol. 19, no 3, 195-208 p.Article in journal (Refereed) Published
Abstract [en]

In three Scandinavian peatlands we studied to what extent plant and microbial community compositions are governed by local-scale microhabitat, with a special interest in the effect of aspect (i.e. exposition of slopes). Despite differences in solar irradiance between the south- and north-facing slopes, maximum temperature was elevated in the south-facing slopes at the most northern site only. Pore-water nutrient concentrations were not affected by aspect, yet dissolved organic carbon concentrations were higher in the south-facing microhabitats. This was likely caused by higher vascular plant biomass. Plant and microbial community composition clearly differed among sites. In all three sites, microhabitat (i.e. prevailing water-table depth) affected the plant and microbial community compositions. Aspect, however, did not affect community composition, even though microclimate significantly differed between the south- and the north-facing aspects at the northernmost site. Our results highlight the complex link between plant community composition, microbial community and environmental conditions, which deserves much more attention than currently in order to fully understand the effects of climate change on peatland ecosystem function.

Place, publisher, year, edition, pages
Helsinki, Finland: Finnish Environment Institute , 2014. Vol. 19, no 3, 195-208 p.
National Category
Earth and Related Environmental Sciences
URN: urn:nbn:se:liu:diva-109258ISI: 000338392100004ScopusID: 2-s2.0-84902329593OAI: diva2:737154
Available from: 2014-08-12 Created: 2014-08-11 Last updated: 2015-04-09Bibliographically approved

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Generó, Magali MartiLarsson, MadeleineLindgren, Per-EricSalomonsson, JaneSundberg, CarinaSvensson, Bo
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Department of Water and Environmental StudiesFaculty of Arts and SciencesDivision of Microbiology and Molecular MedicineFaculty of Health SciencesThe Tema Institute
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Boreal environment research
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