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Reduction of forest soil respiration in response to nitrogen deposition. (Articolo in rivista)

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Reduction of forest soil respiration in response to nitrogen deposition. (Articolo in rivista) (literal)

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Janssens I.A.; Dieleman W.; Luyssaert S.; Subke J-A.; Reichstein M.; Ceulemans R.; Ciais P.; Dolman A. J.; Grace J.; Matteucci G.; Papale D.; Piao S.L.; Schulze E-D.; Tang J.; Law B.E (2010)
Reduction of forest soil respiration in response to nitrogen deposition.
in Nature geoscience (print); NATURE PUBLISHING GROUP,, LONDON (Regno Unito)
(literal)

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Janssens I.A.; Dieleman W.; Luyssaert S.; Subke J-A.; Reichstein M.; Ceulemans R.; Ciais P.; Dolman A. J.; Grace J.; Matteucci G.; Papale D.; Piao S.L.; Schulze E-D.; Tang J.; Law B.E (literal)

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Nature Geoscience Published online: 25 April 2010 | doi 10.1038/ngeo844 (www.nature.com/naturegeoscience) (literal)

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[Janssens, I. A.; Dieleman, W.; Ceulemans, R.] Univ Antwerp, Dept Biol, B-2610 Antwerp, Belgium [Luyssaert, S.; Ciais, P.] UVSQ, CNRS, LSCE CEA, F-91191 Gif Sur Yvette, France [Subke, J-A.] Univ York, Dept Biol, Stockholm Environm Inst, York YO10 5DD, N Yorkshire, England [Reichstein, M.; Schulze, E-D.] Max Planck Inst Biogeochem, D-07701 Jena, Germany [Dolman, A. J.] Vrije Univ Amsterdam, Dept Earth Sci, NL-1081 HV Amsterdam, Netherlands [Grace, J.] Univ Edinburgh, Sch Geosci, Inst Atmospher & Environm Sci, Edinburgh EH9 3JN, Midlothian, Scotland [Matteucci, G.] CNR ISAFOM, I-87036 Arcavacata Di Rende, Italy [Papale, D.] Univ Tuscia, Dept Forest Environm & Resources, I-01100 Viterbo, Italy [Piao, S. L.] Peking Univ, Coll Urban & Environm Sci, Beijing 100871, Peoples R China [Piao, S. L.] Peking Univ, KLESPME, Beijing 100871, Peoples R China [Tang, J.] Marine Biol Lab, Ctr Ecosyst, Woods Hole, MA 02543 USA [Law, B. E.] Oregon State Univ, Coll Forestry, Corvallis, OR 97331 USA (literal)

Titolo

Reduction of forest soil respiration in response to nitrogen deposition. (literal)

Abstract

The use of fossil fuels and fertilizers has increased the amount of biologically reactive nitrogen in the atmosphere over the past century. As a consequence, forests in industrialized regions have experienced greater rates of nitrogen deposition in recent decades. This unintended fertilization has stimulated forest growth, but has also affected soil microbial activity, and thus the recycling of soil carbon and nutrients. A meta-analysis suggests that nitrogen deposition impedes organic matter decomposition, and thus stimulates carbon sequestration, in temperate forest soils where nitrogen is not limiting microbial growth. The concomitant reduction in soil carbon emissions is substantial, and equivalent in magnitude to the amount of carbon taken up by trees owing to nitrogen fertilization. As atmospheric nitrogen levels continue to rise, increased nitrogen deposition could spread to older, more weathered soils, as found in the tropics; however, soil carbon cycling in tropical forests cannot yet be assessed (literal)

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