Bare soil and reed canary grass ecosystem respiration in peat extraction sites in Eastern Finland

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Shurpali, N. J. ; Hyvönen, N. P. ; Huttunen, J. T. ; Biasi, C. ; Nykänen, H. ; Pekkarinen, N. ; Martikainen, P. J. (2011)

This paper reports chamber measurements of ecosystem respiration (ER) from reed canary grass (Phalaris arundinacea L.) (RCG) cultivation made during 2004 and 2005 and respiration rates from an adjacent, bare peat extraction site. Annually, the RCG site released 1465 g in 2004 and 1968 g CO2 m-2 in 2005. The peat extraction site, however, emitted 498 g in 2004 and 264 g CO2 m-2 in 2005. Heterotrophic respiration accounted for about 45% of the RCG ER. Temperature explained 75–88% of the variation in 2005 RCG heterotrophic respiration. Autotrophic respiration was the dominant component of ER and it followed a similar seasonal pattern as the living (green) biomass. RCG heterotrophic respiration was related to soil temperature in interaction with soil volumetric water content and seasonal rainfall distribution. It explained 79 and 47% of the variation in the bare soil respiration from the peat extraction site during 2004 and 2005 snow free periods, respectively. Compared to other ecosystems, emissions from RCG were lower indicating that the RCG is a promising after use option in organic soils.DOI: 10.1111/j.1600-0889.2007.00325.x
  • References (40)
    40 references, page 1 of 4

    Ahlholm, U. and Silvola, J. 1990. CO2 release from peat-harvested peatlands and stockpiles. In: Peat 90. Int. Conf. on Peat Production and Use, 11-15 June 1990. The Association of Finnish Peat Industries, Jyva¨skyla¨, Finland, 1-12.

    Alm J., Saarnio, S., Nyka¨nen, H., Silvola, J. and Martikainen, P.J. 1999. Winter CO2, CH4 and N2O fluxes on some natural and drained boreal peatlands. Biogeochemistry 44, 163-186.

    Aero, L., Potila, H., Laine, J., Ma¨kiranta, P. and Minkkinen, K. 2006. Soil greenhouse gas emissions from afforested cutaway peatlands. In: A Paper Presented at the Symposium on “Forest Ecosystem Carbon and its Economic Implications” Held on 16.03.2006 at the Finnish Forest Research Institute, Helsinki.

    Drebs, A., Nordlund, A., Karlsson, P., Helminen, J. and Rissanen, P. 2002. Climatological Statistics of Finland 1971-2000. Meteorological Research and Basic Weather Services, Finnish Meteorological Institute, Helsinki, 1-95.

    Dunfield, P. F., Topp, E., Archambault, C. and Knowles, R. 1995. Effect of nitrogen fertilizers and moisture content on CH4 and N2O fluxes in a humisol: measurements in the field and intact soil cores. Biogeochemistry 29, 199-222

    Fang, C. and Moncrieff, J. B. 2001. The dependence of soil CO2 efflux on temperature. Soil Biol. Biochem. 33, 155-165.

    Franzluebbers, K., Franzluebbers, A. J., and Jawson, M. D. 2002. Environmental controls on soil and whole-ecosystem respiration from a tallgrass prairie. Soil Sci. Soc. Am. J. 66, 254-262.

    Freeman, C., Fenner, N., Ostle, N. J., Kang, H., Dowrick, D. J. and co-authors. 2004. Export of dissolved organic carbon from peatlands under elevated carbon dioxide levels. Nature 430, doi:10.1038/nature02707

    Gorham, E. 1991. Northern peatlands: role in the carbon cycle and probable responses to climatic warming. Ecol. Appl. 1, 182-195

    Hanson, P. J., Edwards, N. T., Garten, C. T. and Andrews, J. A. 2000. Separating root and soil microbial contributions to soil respiration: a review of methods and observations. Biogeochemistry 48, 115- 146.

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