World Library  

Add to Book Shelf
Flag as Inappropriate
Email this Book

Partitioning of Soil Co2 Efflux in Un-manipulated and Experimentally Flooded Plots of a Temperate Fen : Volume 9, Issue 8 (31/08/2012)

By Wunderlich, S.

Click here to view

Book Id: WPLBN0003978918
Format Type: PDF Article :
File Size: Pages 13
Reproduction Date: 2015

Title: Partitioning of Soil Co2 Efflux in Un-manipulated and Experimentally Flooded Plots of a Temperate Fen : Volume 9, Issue 8 (31/08/2012)  
Author: Wunderlich, S.
Volume: Vol. 9, Issue 8
Language: English
Subject: Science, Biogeosciences
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


APA MLA Chicago

Borken, W., & Wunderlich, S. (2012). Partitioning of Soil Co2 Efflux in Un-manipulated and Experimentally Flooded Plots of a Temperate Fen : Volume 9, Issue 8 (31/08/2012). Retrieved from

Description: Department of Soil Ecology, University of Bayreuth, Bayreuth, Germany. Peatlands store large amounts of organic carbon, but the carbon stock is sensitive to changes in precipitation or water table manipulations. Restoration of drained peatlands by drain blocking and flooding is a common measure to conserve and augment the carbon stock of peatland soils. Here, we report to what extent flooding affected the contribution of heterotrophic and rhizosphere respiration to soil CO2 efflux in a grass-dominated mountain fen in Germany. Soil CO2 efflux was measured in three un-manipulated control plots and three flooded plots in two consecutive years. Flooding was achieved by permanent irrigation during the growing seasons. Radiocarbon signatures of CO2 from different sources including soil CO2 efflux, incubated peat cores and live grass roots were repeatedly analyzed for partitioning of soil CO2 efflux. Additionally, heterotrophic respiration and its radiocarbon signature were determined by eliminating rhizosphere respiration in trenched subplots (only control). In the control plots, rhizosphere respiration determined by 14C signatures contributed between 47 and 61% during the growing season, but was small (4 ± 8%) immediately before budding. Trenching revealed a smaller rhizosphere contribution of 33 ± 8% (2009) and 22 ± 9% (2010) during growing seasons.

Flooding reduced annual soil CO2 efflux of the fen by 42% in 2009 and by 30% in 2010. The reduction was smaller in 2010 mainly through naturally elevated water level in the control plots. A one-week interruption of irrigation caused a strong short-lived increase in soil CO2 efflux, demonstrating the sensitivity of the fen to water table drawdown near the peat surface. The reduction in soil CO2 efflux in the flooded plots diminished the relative proportion of rhizosphere respiration from 56 to 46%, suggesting that rhizosphere respiration was slightly more sensitive to flooding than heterotrophic respiration.

Partitioning of soil CO2 efflux in un-manipulated and experimentally flooded plots of a temperate fen

Alm, J., Schulman, L., Walden, J., Nykänen, H., Martikainen, P. J., and Silvola, J.: Carbon balance of a boreal bog during a year with an exceptionally dry summer, Ecology, 80, 161–174, 1999.; Borken, W., Savage, K., Davidson, E. A., and Trumbore, S. E.: Effects of experimental drought on soil respiration and radiocarbon efflux from a temperate forest soil, Glob. Change Biol., 12, 177–193, 2006.; Bortoluzzi, E., Epron, D., Siegenthaler, A., Gilbert, D., and Buttler, A.: Carbon balance of a European mountain bog at contrasting stages of regeneration, New Phytol., 172, 708–718, 2006.; Bridgham, S. D., Pastor, J., Dewey, B., Weltzin, J. F., and Updegraff, K.: Rapid carbon response of peatlands to climate change, Ecology, 89, 3041–3048, 2008.; Chen, Y. T., Borken, W., Stange, C. F., and Matzner, E.: Dynamics of nitrogen and carbon mineralization in a fen soil following water table fluctuations, Wetlands, 32, 579–587, 2012.; Chimner, R. A. and Cooper, D. J.: Influence of water table levels on CO2 emissions in a Colorado subalpine fen: an in situ microcosm study, Soil Biol. Biochem., 35, 345–351, 2003.; Chivers, M. R., Turetsky, M. R., Waddington, J. M., Harden, J. W., and McGuire, A. D.: Effects of experimental water table and temperature manipulations on ecosystem CO2 fluxes in an Alaskan rich fen, Ecosystems, 12, 1329–1342, 2009.; Crow, S. E. and Wieder, R. K.: Sources of CO2 emission from a northern peatland: Root respiration, exudation, and decomposition, Ecology, 86, 1825–1834, 2005.; Domenico, P. A. and Schwartz, F. W.: Physical and Chemical Hydrogeology, John Wiley & Sons, Inc., New York, Chichester, Brisbane, Toronto, Singapore, 1990.; Ellis, T., Hill, P. W., Fenner, N., Williams, G. G., Godbold, D., and Freeman, C.: The interactive effects of elevated carbon dioxide and water table draw-down on carbon cycling in a Welsh ombrotrophic bog, Ecol. Eng., 35, 978–986, 2009.; Estop-Aragonés, C., Knorr, K.-H., and Blodau, C.: Controls on in situ oxygen and DIC dynamics in peats of a temperate fen, J. Geophys. Res.-Biogeo., 117, G02002, doi:10.1029/2011JG001888, 2012.; Goldberg, S., Knorr, K.-H., and Gebauer, G.: N2O concentration and isotope signature along profiles provide deeper insight into the fate of N2O in soils, Isotopes Environ. Health Studies, 44, 377–391, 2008.; Gorham, E.: Northern peatlands: Role in the carbon cycle and probable responses to climatic warming, Ecol. Appl., 1, 182–195, 1991.; Jin, Y. and Jury, W. A.: Characterizing the dependence of gas diffusion coefficient on soil properties, Soil Sci. Soc. Am. J., 60, 66–71, 1996.; Hardie, S. M. L., Garnett, M. H., Fallick, A. E., Ostle, N. J., and Rowland, A. P.: Bomb-14C analysis of ecosystem respiration reveals that peatland vegetation facilitates release of old carbon, Geoderma, 153, 393–401, 2009.; Heinemeyer, A., Di Bene, C., Lloyd, A. R., Tortorella, D., Baxter, R., Huntley, B., Gelsomino, A., and Ineson, P.: Soil respiration: implications of the plant-soil continuum and respiration chamber collar-insertion depth on measurement and modelling of soil CO2 efflux rates in three ecosystems, Eur. J. Soil Sci., 62, 82–94, 2011.; Knorr, K.-H., Oosterwoud, M. R., and Blodau, C.: Experimental drought alters rates of soil respiration and methanogenesis but not carbon exchange in soil of a temperate fen, Soil Biol. Biochem., 40, 1781–1791, 2008.; Laiho, R.: Decomposition in peatlands: Reconciling seemingly contrasting results on the impacts of lowered water levels, Soil Biol. Biochem., 38, 2011–2024, 2006.; Lavoie, M., Pare, D., and Bergeron, Y.: Impact of global change and forest management on carbon sequestration in northern forested peatlands, Environ. Rev., 13, 199–240, 2005.; Lerman, A.: Geochemical Processes - Water and Sediment Environments


Click To View

Additional Books

  • The Emission Factor of Volatile Isopreno... (by )
  • Sea-ice Melt Co2-carbonate Chemistry in ... (by )
  • Impact of the Kuroshio Intrusion on the ... (by )
  • Memorias Y Revista De La Sociedad Cientí... Volume: t.8 1894-1895 (by )
  • Carbon Isotopic Evidence for Microbial C... (by )
  • Analyzing Precipitationsheds to Understa... (by )
  • Sensitivity of Pelagic Caco3 Dissolution... (by )
  • Manifestation of Two Meddies in Altimetr... (by )
  • Spatio-temporal Patterns of C : N : P Ra... (by )
  • Predicting the Denitrification Capacity ... (by )
  • Eddy Covariance Flux Measurements Confir... (by )
  • A Comparison of the Variability of Biolo... (by )
Scroll Left
Scroll Right


Copyright © World Library Foundation. All rights reserved. eBooks from Hawaii eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.