caa a22 4500 606218610 CHVBK 20210128101113.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s11104-014-2301-8 doi (NATIONALLICENCE)springer-10.1007/s11104-014-2301-8 Effects of water table position and plant functional group on plant community, aboveground production, and peat properties in a peatland mesocosm experiment (PEATcosm) [Elektronische Daten] [Lynette Potvin, Evan Kane, Rodney Chimner, Randall Kolka, Erik Lilleskov] Aims: Our objective was to assess the impacts of water table position and plant functional type on peat structure, plant community composition and aboveground plant production. Methods: We initiated a full factorial experiment with 2 water table (WT) treatments (high and low) and 3 plant functional groups (PFG: sedge, Ericaceae, sedge and Ericaceae- unmanipulated) in twenty-four 1m3 intact peatland mesocosms. We measured vegetation cover, aboveground plant production, and peat subsidence to analyze interactive PFG and WT effects. Results: Sphagnum rubellum cover increased under high WT, while Polytrichum cover increased with low WT and in sedge only PFGs. Sphagnum production was greatest with high WT, while vascular plant production was greater in low WT treatments. There was an interactive WT x PFG effect on Ericaceae production. Lowered WT resulted in significant peat surface change and increased subsidence. There were significant PFG and WT effects on net peat accumulation, with the lowest rates of accumulation, high and low WT, in sedge only PFGs. Conclusions: The shift in water balance leading to lowered water table position predicted with changing climate could impact plant community composition and production, and would likely result in the subsidence of peat. Springer Science+Business Media B.V. (outside the USA), 2014 Peatland nationallicence Plant functional group nationallicence Water table nationallicence Sphagnum nationallicence Ericaceae nationallicence Sedge nationallicence Potvin Lynette USDA Forest Service Northern Research Station, 49931, Houghton, MI, USA aut Kane Evan USDA Forest Service Northern Research Station, 49931, Houghton, MI, USA aut Chimner Rodney School of Forest Resources and Environmental Science, Michigan Technological University, 49931, Houghton, MI, USA aut Kolka Randall USDA Forest Service Northern Research Station, 55744, Grand Rapids, MN, USA aut Lilleskov Erik USDA Forest Service Northern Research Station, 49931, Houghton, MI, USA aut Plant and Soil Springer International Publishing 387/1-2(2015-02-01), 277-294 0032-079X 387:1-2<277 2015 387 11104 https://doi.org/10.1007/s11104-014-2301-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11104-014-2301-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Potvin Lynette USDA Forest Service Northern Research Station, 49931, Houghton, MI, USA aut NATIONALLICENCE 700 1- Kane Evan USDA Forest Service Northern Research Station, 49931, Houghton, MI, USA aut NATIONALLICENCE 700 1- Chimner Rodney School of Forest Resources and Environmental Science, Michigan Technological University, 49931, Houghton, MI, USA aut NATIONALLICENCE 700 1- Kolka Randall USDA Forest Service Northern Research Station, 55744, Grand Rapids, MN, USA aut NATIONALLICENCE 700 1- Lilleskov Erik USDA Forest Service Northern Research Station, 49931, Houghton, MI, USA aut NATIONALLICENCE 773 0- Plant and Soil Springer International Publishing 387/1-2(2015-02-01), 277-294 0032-079X 387:1-2<277 2015 387 11104