Response of peat biogeochemistry and soil organic matter quality to rewetting in bogs and spruce swamp forests

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http://hdl.handle.net/10138/308754

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Urbanova , Z , Straková , P & Kastovska , E 2018 , ' Response of peat biogeochemistry and soil organic matter quality to rewetting in bogs and spruce swamp forests ' , European Journal of Soil Biology , vol. 85 , pp. 12-22 . https://doi.org/10.1016/j.ejsobi.2017.12.004

Title: Response of peat biogeochemistry and soil organic matter quality to rewetting in bogs and spruce swamp forests
Author: Urbanova, Zuzana; Straková, Petra; Kastovska, Eva
Contributor: University of Helsinki, Department of Forest Sciences
Date: 2018-02-12
Language: eng
Number of pages: 11
Belongs to series: European Journal of Soil Biology
ISSN: 1164-5563
URI: http://hdl.handle.net/10138/308754
Abstract: Various peatland restoration strategies developed during the last two decades have aimed to stop degradation and bring back the original hydrology, biodiversity and other peatland functions. This study evaluated progress 6-15 years after rewetting in vegetation development, physicochemical properties of peat, soil organic matter (SOM) quality and microbial activity in previously long-term drained bogs and spruce swamp forests (SSF) in comparison with pristine and long-term drained sites in the Bohemian Forest, Czech Republic. Long-term drainage led to overall ecosystem degradation, indicated by a change in vegetation composition, reduced decomposability of peat, with high content of recalcitrant compounds and decreased pH, and reduced soil microbial biomass and activity. The degradation was more pronounced in SSF, while bogs seemed to be relatively resistant to environmental changes caused by drainage. Post-rewetting progress has occurred with regard to vegetation composition, peat pH, microbial biomass and potential anaerobic CO2 and CH4 production, all of which tending towards characteristics of the pristine sites. However, overall SOM quality has not yet responded significantly, indicating that some peat properties and functions, such as C accumulation, need much longer periods of time to return to the original level.
Subject: WATER-LEVEL DRAWDOWN
MICROBIAL BIOMASS-C
REGENERATING CUTOVER PEATLANDS
RESTORED BOG
ACTINOBACTERIAL COMMUNITIES
ECOLOGICAL RESTORATION
NORTHERN PEATLANDS
FTIR SPECTROSCOPY
VEGETATION CHANGE
ENZYME-ACTIVITIES
4112 Forestry
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