2015
DOI: 10.1002/jpln.201300396
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Multiyear greenhouse gas flux measurements on a temperate fen soil used for cropland or grassland

Abstract: To date there is still a lack of reliable data on greenhouse gas emissions from drained fens needed to determine the climatic relevance of land use and land use change on peatlands and to supply the National Inventory Report for the German Greenhouse Gas Inventory. In this study we present the results of monthly-based multiyear measurements of CO 2 , N 2 O and CH 4 flux rates in two drained agriculturally used fen ecosystems in NW Germany (cropland and grassland) over a period of 4.5 y using transparent and op… Show more

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Cited by 18 publications
(7 citation statements)
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“…The use of GWP as a tool to assess the climatic impact of GHG emissions or removals over the lifetime of a peatland can be problematic (Frolking et al ., ; Bridgham et al ., ), although it has been widely utilized as a means of directly comparing the effects of management actions on GHG exchange (e.g. Maljanen et al ., ; Beetz et al ., ; Herbst et al ., ; Wilson et al ., ; Beyer et al ., ). Annual GWP values in peatlands typically display strong IAV as they are calculated from highly variable annual GHG fluxes.…”
Section: Discussionmentioning
confidence: 97%
“…The use of GWP as a tool to assess the climatic impact of GHG emissions or removals over the lifetime of a peatland can be problematic (Frolking et al ., ; Bridgham et al ., ), although it has been widely utilized as a means of directly comparing the effects of management actions on GHG exchange (e.g. Maljanen et al ., ; Beetz et al ., ; Herbst et al ., ; Wilson et al ., ; Beyer et al ., ). Annual GWP values in peatlands typically display strong IAV as they are calculated from highly variable annual GHG fluxes.…”
Section: Discussionmentioning
confidence: 97%
“…This analysis is the most comprehensive in terms of measured GHG fluxes and organic soil types and, above all, the first with a completely consistent setup. It is based on the data published previously (Beetz et al ., ; Drösler et al ., ; Eickenscheidt et al ., ; Leiber‐Sauheitl et al ., ; Beyer et al ., ; Metzger et al ., ), which were re‐assessed and harmonized, and, to a larger extent, on so far unpublished measurements.…”
Section: Introductionmentioning
confidence: 98%
“…Our study found opposing net fluxes of methane when comparing chamber fluxes (2010 and 2011) with eddy covariance methane fluxes. Published studies carried out to investigate grassland methane emissions with chambers mostly show a net uptake of methane (Beyer et al, 2015;Chiavegato et al, 2015;Kim and Tanaka, 2015;Wei et al, 2015), while eddy covariance based studies often show a net release of methane (Baldocchi et al, 2012;Dengel et al, 2011;Hörtnagl et al, 2018;Kroon et al, 2010). We identified three primary reasons for this discrepancy: (1) the difference in spatial scales that the individual methods investigate;…”
Section: Technical and Methodological Aspectsmentioning
confidence: 90%