Soil respiration at mean annual temperature predicts annual total across vegetation types and biomes
Identifieur interne : 000159 ( Pmc/Curation ); précédent : 000158; suivant : 000160Soil respiration at mean annual temperature predicts annual total across vegetation types and biomes
Auteurs : M. Bahn [Autriche] ; M. Reichstein [Allemagne] ; E. A. Davidson [États-Unis] ; J. Grünzweig [Israël] ; M. Jung [Allemagne] ; M. S. Carbone [États-Unis] ; D. Epron [France] ; L. Misson [France] ; Y. Nouvellon [France] ; O. Roupsard [France, Costa Rica] ; K. Savage [États-Unis] ; S. E. Trumbore [Allemagne] ; C. Gimeno [Espagne] ; J. Curiel Yuste [Espagne] ; J. Tang [États-Unis] ; R. Vargas [États-Unis] ; I. A. Janssens [Belgique]Source :
- Biogeosciences (Online) [ 1726-4170 ] ; 2010.
Abstract
Soil respiration (SR) constitutes the largest flux of CO2 from terrestrial ecosystems to the atmosphere. However, there still exist considerable uncertainties as to its actual magnitude, as well as its spatial and interannual variability. Based on a reanalysis and synthesis of 80 site-years for 57 forests, plantations, savannas, shrublands and grasslands from boreal to tropical climates we present evidence that total annual SR is closely related to SR at mean annual soil temperature (SRMAT), irrespective of the type of ecosystem and biome. This is theoretically expected for non water-limited ecosystems within most of the globally occurring range of annual temperature variability and sensitivity (
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DOI: 10.5194/bg-7-2147-2010
PubMed: 23293656
PubMed Central: 3535887
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Y. Nouvellon<affiliation><nlm:aff id="A9">CRDPI, Pointe-Noire, Republic of Congo</nlm:aff><wicri:noCountry code="subfield">Republic of Congo</wicri:noCountry></affiliation>Le document en format XML
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Reichstein</name><affiliation wicri:level="1"><nlm:aff id="A2">Max-Planck Institute for Biogeochemistry, Jena, Germany</nlm:aff><country xml:lang="fr">Allemagne</country><wicri:regionArea>Max-Planck Institute for Biogeochemistry, Jena</wicri:regionArea></affiliation></author><author><name sortKey="Davidson, E A" sort="Davidson, E A" uniqKey="Davidson E" first="E. A." last="Davidson">E. A. Davidson</name><affiliation wicri:level="1"><nlm:aff id="A3">The Woods Hole Research Center, Falmouth, Massachusetts, USA</nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>The Woods Hole Research Center, Falmouth, Massachusetts</wicri:regionArea></affiliation></author><author><name sortKey="Grunzweig, J" sort="Grunzweig, J" uniqKey="Grunzweig J" first="J." last="Grünzweig">J. Grünzweig</name><affiliation wicri:level="1"><nlm:aff id="A4">Hebrew University of Jerusalem, Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot, Israel</nlm:aff><country xml:lang="fr">Israël</country><wicri:regionArea>Hebrew University of Jerusalem, Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot</wicri:regionArea></affiliation></author><author><name sortKey="Jung, M" sort="Jung, M" uniqKey="Jung M" first="M." last="Jung">M. Jung</name><affiliation wicri:level="1"><nlm:aff id="A2">Max-Planck Institute for Biogeochemistry, Jena, Germany</nlm:aff><country xml:lang="fr">Allemagne</country><wicri:regionArea>Max-Planck Institute for Biogeochemistry, Jena</wicri:regionArea></affiliation></author><author><name sortKey="Carbone, M S" sort="Carbone, M S" uniqKey="Carbone M" first="M. S." last="Carbone">M. S. Carbone</name><affiliation wicri:level="1"><nlm:aff id="A5">Department of Geography, University of California, Santa Barbara, California, USA</nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Geography, University of California, Santa Barbara, California</wicri:regionArea></affiliation></author><author><name sortKey="Epron, D" sort="Epron, D" uniqKey="Epron D" first="D." last="Epron">D. Epron</name><affiliation wicri:level="1"><nlm:aff id="A6">Nancy Université, Université Henri Poincaré, Vandoeuvre les Nancy, France</nlm:aff><country xml:lang="fr">France</country><wicri:regionArea>Nancy Université, Université Henri Poincaré, Vandoeuvre les Nancy</wicri:regionArea></affiliation></author><author><name sortKey="Misson, L" sort="Misson, L" uniqKey="Misson L" first="L." last="Misson">L. Misson</name><affiliation wicri:level="1"><nlm:aff id="A7">CNRS, Montpellier, France</nlm:aff><country xml:lang="fr">France</country><wicri:regionArea>CNRS, Montpellier</wicri:regionArea></affiliation></author><author><name sortKey="Nouvellon, Y" sort="Nouvellon, Y" uniqKey="Nouvellon Y" first="Y." last="Nouvellon">Y. Nouvellon</name><affiliation wicri:level="1"><nlm:aff id="A8">CIRAD, Montpellier, France</nlm:aff><country xml:lang="fr">France</country><wicri:regionArea>CIRAD, Montpellier</wicri:regionArea></affiliation><affiliation><nlm:aff id="A9">CRDPI, Pointe-Noire, Republic of Congo</nlm:aff><wicri:noCountry code="subfield">Republic of Congo</wicri:noCountry></affiliation></author><author><name sortKey="Roupsard, O" sort="Roupsard, O" uniqKey="Roupsard O" first="O." last="Roupsard">O. Roupsard</name><affiliation wicri:level="1"><nlm:aff id="A8">CIRAD, Montpellier, France</nlm:aff><country xml:lang="fr">France</country><wicri:regionArea>CIRAD, Montpellier</wicri:regionArea></affiliation><affiliation wicri:level="1"><nlm:aff id="A10">CATIE, Turrialba, Costa Rica</nlm:aff><country xml:lang="fr">Costa Rica</country><wicri:regionArea>CATIE, Turrialba</wicri:regionArea></affiliation></author><author><name sortKey="Savage, K" sort="Savage, K" uniqKey="Savage K" first="K." last="Savage">K. Savage</name><affiliation wicri:level="1"><nlm:aff id="A3">The Woods Hole Research Center, Falmouth, Massachusetts, USA</nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>The Woods Hole Research Center, Falmouth, Massachusetts</wicri:regionArea></affiliation></author><author><name sortKey="Trumbore, S E" sort="Trumbore, S E" uniqKey="Trumbore S" first="S. E." last="Trumbore">S. E. Trumbore</name><affiliation wicri:level="1"><nlm:aff id="A2">Max-Planck Institute for Biogeochemistry, Jena, Germany</nlm:aff><country xml:lang="fr">Allemagne</country><wicri:regionArea>Max-Planck Institute for Biogeochemistry, Jena</wicri:regionArea></affiliation></author><author><name sortKey="Gimeno, C" sort="Gimeno, C" uniqKey="Gimeno C" first="C." last="Gimeno">C. Gimeno</name><affiliation wicri:level="1"><nlm:aff id="A11">CEAM, Paterna, Valencia, Spain</nlm:aff><country xml:lang="fr">Espagne</country><wicri:regionArea>CEAM, Paterna, Valencia</wicri:regionArea></affiliation></author><author><name sortKey="Yuste, J Curiel" sort="Yuste, J Curiel" uniqKey="Yuste J" first="J. Curiel" last="Yuste">J. Curiel Yuste</name><affiliation wicri:level="1"><nlm:aff id="A12">CREAF, Universitat Autònomade Barcelona, Bellaterra, Barcelona, Spain</nlm:aff><country xml:lang="fr">Espagne</country><wicri:regionArea>CREAF, Universitat Autònomade Barcelona, Bellaterra, Barcelona</wicri:regionArea></affiliation></author><author><name sortKey="Tang, J" sort="Tang, J" uniqKey="Tang J" first="J." last="Tang">J. Tang</name><affiliation wicri:level="1"><nlm:aff id="A13">The Ecosystems Center, Marine Biological Laboratory, Woods Hole, Massachusetts, USA</nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>The Ecosystems Center, Marine Biological Laboratory, Woods Hole, Massachusetts</wicri:regionArea></affiliation></author><author><name sortKey="Vargas, R" sort="Vargas, R" uniqKey="Vargas R" first="R." last="Vargas">R. Vargas</name><affiliation wicri:level="1"><nlm:aff id="A14">Department of Environmental Science, Policy & Management (ESPM), University of California, Berkeley, California, USA</nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Environmental Science, Policy & Management (ESPM), University of California, Berkeley, California</wicri:regionArea></affiliation></author><author><name sortKey="Janssens, I A" sort="Janssens, I A" uniqKey="Janssens I" first="I. A." last="Janssens">I. A. Janssens</name><affiliation wicri:level="1"><nlm:aff id="A15">Department of Biology, University Instelling Antwerp, Wilrijk, Belgium</nlm:aff><country xml:lang="fr">Belgique</country><wicri:regionArea>Department of Biology, University Instelling Antwerp, Wilrijk</wicri:regionArea></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">23293656</idno><idno type="pmc">3535887</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3535887</idno><idno type="RBID">PMC:3535887</idno><idno type="doi">10.5194/bg-7-2147-2010</idno><date when="2010">2010</date><idno type="wicri:Area/Pmc/Corpus">000159</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000159</idno><idno type="wicri:Area/Pmc/Curation">000159</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">000159</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Soil respiration at mean annual temperature predicts annual total across vegetation types and biomes</title><author><name sortKey="Bahn, M" sort="Bahn, M" uniqKey="Bahn M" first="M." last="Bahn">M. Bahn</name><affiliation wicri:level="1"><nlm:aff id="A1">Institute of Ecology, University of Innsbruck, Innsbruck, Austria</nlm:aff><country xml:lang="fr">Autriche</country><wicri:regionArea>Institute of Ecology, University of Innsbruck, Innsbruck</wicri:regionArea></affiliation></author><author><name sortKey="Reichstein, M" sort="Reichstein, M" uniqKey="Reichstein M" first="M." last="Reichstein">M. Reichstein</name><affiliation wicri:level="1"><nlm:aff id="A2">Max-Planck Institute for Biogeochemistry, Jena, Germany</nlm:aff><country xml:lang="fr">Allemagne</country><wicri:regionArea>Max-Planck Institute for Biogeochemistry, Jena</wicri:regionArea></affiliation></author><author><name sortKey="Davidson, E A" sort="Davidson, E A" uniqKey="Davidson E" first="E. A." last="Davidson">E. A. Davidson</name><affiliation wicri:level="1"><nlm:aff id="A3">The Woods Hole Research Center, Falmouth, Massachusetts, USA</nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>The Woods Hole Research Center, Falmouth, Massachusetts</wicri:regionArea></affiliation></author><author><name sortKey="Grunzweig, J" sort="Grunzweig, J" uniqKey="Grunzweig J" first="J." last="Grünzweig">J. Grünzweig</name><affiliation wicri:level="1"><nlm:aff id="A4">Hebrew University of Jerusalem, Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot, Israel</nlm:aff><country xml:lang="fr">Israël</country><wicri:regionArea>Hebrew University of Jerusalem, Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot</wicri:regionArea></affiliation></author><author><name sortKey="Jung, M" sort="Jung, M" uniqKey="Jung M" first="M." last="Jung">M. Jung</name><affiliation wicri:level="1"><nlm:aff id="A2">Max-Planck Institute for Biogeochemistry, Jena, Germany</nlm:aff><country xml:lang="fr">Allemagne</country><wicri:regionArea>Max-Planck Institute for Biogeochemistry, Jena</wicri:regionArea></affiliation></author><author><name sortKey="Carbone, M S" sort="Carbone, M S" uniqKey="Carbone M" first="M. S." last="Carbone">M. S. Carbone</name><affiliation wicri:level="1"><nlm:aff id="A5">Department of Geography, University of California, Santa Barbara, California, USA</nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Geography, University of California, Santa Barbara, California</wicri:regionArea></affiliation></author><author><name sortKey="Epron, D" sort="Epron, D" uniqKey="Epron D" first="D." last="Epron">D. Epron</name><affiliation wicri:level="1"><nlm:aff id="A6">Nancy Université, Université Henri Poincaré, Vandoeuvre les Nancy, France</nlm:aff><country xml:lang="fr">France</country><wicri:regionArea>Nancy Université, Université Henri Poincaré, Vandoeuvre les Nancy</wicri:regionArea></affiliation></author><author><name sortKey="Misson, L" sort="Misson, L" uniqKey="Misson L" first="L." last="Misson">L. Misson</name><affiliation wicri:level="1"><nlm:aff id="A7">CNRS, Montpellier, France</nlm:aff><country xml:lang="fr">France</country><wicri:regionArea>CNRS, Montpellier</wicri:regionArea></affiliation></author><author><name sortKey="Nouvellon, Y" sort="Nouvellon, Y" uniqKey="Nouvellon Y" first="Y." last="Nouvellon">Y. Nouvellon</name><affiliation wicri:level="1"><nlm:aff id="A8">CIRAD, Montpellier, France</nlm:aff><country xml:lang="fr">France</country><wicri:regionArea>CIRAD, Montpellier</wicri:regionArea></affiliation><affiliation><nlm:aff id="A9">CRDPI, Pointe-Noire, Republic of Congo</nlm:aff><wicri:noCountry code="subfield">Republic of Congo</wicri:noCountry></affiliation></author><author><name sortKey="Roupsard, O" sort="Roupsard, O" uniqKey="Roupsard O" first="O." last="Roupsard">O. Roupsard</name><affiliation wicri:level="1"><nlm:aff id="A8">CIRAD, Montpellier, France</nlm:aff><country xml:lang="fr">France</country><wicri:regionArea>CIRAD, Montpellier</wicri:regionArea></affiliation><affiliation wicri:level="1"><nlm:aff id="A10">CATIE, Turrialba, Costa Rica</nlm:aff><country xml:lang="fr">Costa Rica</country><wicri:regionArea>CATIE, Turrialba</wicri:regionArea></affiliation></author><author><name sortKey="Savage, K" sort="Savage, K" uniqKey="Savage K" first="K." last="Savage">K. Savage</name><affiliation wicri:level="1"><nlm:aff id="A3">The Woods Hole Research Center, Falmouth, Massachusetts, USA</nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>The Woods Hole Research Center, Falmouth, Massachusetts</wicri:regionArea></affiliation></author><author><name sortKey="Trumbore, S E" sort="Trumbore, S E" uniqKey="Trumbore S" first="S. E." last="Trumbore">S. E. Trumbore</name><affiliation wicri:level="1"><nlm:aff id="A2">Max-Planck Institute for Biogeochemistry, Jena, Germany</nlm:aff><country xml:lang="fr">Allemagne</country><wicri:regionArea>Max-Planck Institute for Biogeochemistry, Jena</wicri:regionArea></affiliation></author><author><name sortKey="Gimeno, C" sort="Gimeno, C" uniqKey="Gimeno C" first="C." last="Gimeno">C. Gimeno</name><affiliation wicri:level="1"><nlm:aff id="A11">CEAM, Paterna, Valencia, Spain</nlm:aff><country xml:lang="fr">Espagne</country><wicri:regionArea>CEAM, Paterna, Valencia</wicri:regionArea></affiliation></author><author><name sortKey="Yuste, J Curiel" sort="Yuste, J Curiel" uniqKey="Yuste J" first="J. Curiel" last="Yuste">J. Curiel Yuste</name><affiliation wicri:level="1"><nlm:aff id="A12">CREAF, Universitat Autònomade Barcelona, Bellaterra, Barcelona, Spain</nlm:aff><country xml:lang="fr">Espagne</country><wicri:regionArea>CREAF, Universitat Autònomade Barcelona, Bellaterra, Barcelona</wicri:regionArea></affiliation></author><author><name sortKey="Tang, J" sort="Tang, J" uniqKey="Tang J" first="J." last="Tang">J. Tang</name><affiliation wicri:level="1"><nlm:aff id="A13">The Ecosystems Center, Marine Biological Laboratory, Woods Hole, Massachusetts, USA</nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>The Ecosystems Center, Marine Biological Laboratory, Woods Hole, Massachusetts</wicri:regionArea></affiliation></author><author><name sortKey="Vargas, R" sort="Vargas, R" uniqKey="Vargas R" first="R." last="Vargas">R. Vargas</name><affiliation wicri:level="1"><nlm:aff id="A14">Department of Environmental Science, Policy & Management (ESPM), University of California, Berkeley, California, USA</nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Environmental Science, Policy & Management (ESPM), University of California, Berkeley, California</wicri:regionArea></affiliation></author><author><name sortKey="Janssens, I A" sort="Janssens, I A" uniqKey="Janssens I" first="I. A." last="Janssens">I. A. Janssens</name><affiliation wicri:level="1"><nlm:aff id="A15">Department of Biology, University Instelling Antwerp, Wilrijk, Belgium</nlm:aff><country xml:lang="fr">Belgique</country><wicri:regionArea>Department of Biology, University Instelling Antwerp, Wilrijk</wicri:regionArea></affiliation></author></analytic><series><title level="j">Biogeosciences (Online)</title><idno type="ISSN">1726-4170</idno><idno type="eISSN">1726-4189</idno><imprint><date when="2010">2010</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p id="P2">Soil respiration (SR) constitutes the largest flux of CO<sub>2</sub> from terrestrial ecosystems to the atmosphere. However, there still exist considerable uncertainties as to its actual magnitude, as well as its spatial and interannual variability. Based on a reanalysis and synthesis of 80 site-years for 57 forests, plantations, savannas, shrublands and grasslands from boreal to tropical climates we present evidence that total annual SR is closely related to SR at mean annual soil temperature (SR<sub>MAT</sub>), irrespective of the type of ecosystem and biome. This is theoretically expected for non water-limited ecosystems within most of the globally occurring range of annual temperature variability and sensitivity (<italic>Q</italic><sub>10</sub>). We further show that for seasonally dry sites where annual precipitation (<italic>P</italic>) is lower than potential evapotranspiration (PET), annual SR can be predicted from wet season SR<sub>MAT</sub> corrected for a factor related to <italic>P</italic>/PET. Our finding indicates that it can be sufficient to measure SR<sub>MAT</sub> for obtaining a well constrained estimate of its annual total. This should substantially increase our capacity for assessing the spatial distribution of soil CO<sub>2</sub> emissions across ecosystems, landscapes and regions, and thereby contribute to improving the spatial resolution of a major component of the global carbon cycle.</p></div></front></TEI><pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<pmc-dir>properties manuscript</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-journal-id">101233311</journal-id><journal-id journal-id-type="pubmed-jr-id">37853</journal-id><journal-id journal-id-type="nlm-ta">Biogeosciences</journal-id><journal-id journal-id-type="iso-abbrev">Biogeosciences</journal-id><journal-title-group><journal-title>Biogeosciences (Online)</journal-title></journal-title-group><issn pub-type="ppub">1726-4170</issn><issn pub-type="epub">1726-4189</issn></journal-meta><article-meta><article-id pub-id-type="pmid">23293656</article-id><article-id pub-id-type="pmc">3535887</article-id><article-id pub-id-type="doi">10.5194/bg-7-2147-2010</article-id><article-id pub-id-type="manuscript">EMS32385</article-id><article-categories><subj-group subj-group-type="heading"><subject>Article</subject></subj-group></article-categories><title-group><article-title>Soil respiration at mean annual temperature predicts annual total across vegetation types and biomes</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Bahn</surname><given-names>M.</given-names></name><xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author"><name><surname>Reichstein</surname><given-names>M.</given-names></name><xref ref-type="aff" rid="A2">2</xref></contrib><contrib contrib-type="author"><name><surname>Davidson</surname><given-names>E. A.</given-names></name><xref ref-type="aff" rid="A3">3</xref></contrib><contrib contrib-type="author"><name><surname>Grünzweig</surname><given-names>J.</given-names></name><xref ref-type="aff" rid="A4">4</xref></contrib><contrib contrib-type="author"><name><surname>Jung</surname><given-names>M.</given-names></name><xref ref-type="aff" rid="A2">2</xref></contrib><contrib contrib-type="author"><name><surname>Carbone</surname><given-names>M. S.</given-names></name><xref ref-type="aff" rid="A5">5</xref></contrib><contrib contrib-type="author"><name><surname>Epron</surname><given-names>D.</given-names></name><xref ref-type="aff" rid="A6">6</xref></contrib><contrib contrib-type="author"><name><surname>Misson</surname><given-names>L.</given-names></name><xref ref-type="aff" rid="A7">7</xref><xref ref-type="author-notes" rid="FN1">†</xref></contrib><contrib contrib-type="author"><name><surname>Nouvellon</surname><given-names>Y.</given-names></name><xref ref-type="aff" rid="A8">8</xref><xref ref-type="aff" rid="A9">9</xref></contrib><contrib contrib-type="author"><name><surname>Roupsard</surname><given-names>O.</given-names></name><xref ref-type="aff" rid="A8">8</xref><xref ref-type="aff" rid="A10">10</xref></contrib><contrib contrib-type="author"><name><surname>Savage</surname><given-names>K.</given-names></name><xref ref-type="aff" rid="A3">3</xref></contrib><contrib contrib-type="author"><name><surname>Trumbore</surname><given-names>S. E.</given-names></name><xref ref-type="aff" rid="A2">2</xref></contrib><contrib contrib-type="author"><name><surname>Gimeno</surname><given-names>C.</given-names></name><xref ref-type="aff" rid="A11">11</xref></contrib><contrib contrib-type="author"><name><surname>Yuste</surname><given-names>J. Curiel</given-names></name><xref ref-type="aff" rid="A12">12</xref></contrib><contrib contrib-type="author"><name><surname>Tang</surname><given-names>J.</given-names></name><xref ref-type="aff" rid="A13">13</xref></contrib><contrib contrib-type="author"><name><surname>Vargas</surname><given-names>R.</given-names></name><xref ref-type="aff" rid="A14">14</xref></contrib><contrib contrib-type="author"><name><surname>Janssens</surname><given-names>I. A.</given-names></name><xref ref-type="aff" rid="A15">15</xref></contrib></contrib-group><aff id="A1"><label>1</label>Institute of Ecology, University of Innsbruck, Innsbruck, Austria</aff><aff id="A2"><label>2</label>Max-Planck Institute for Biogeochemistry, Jena, Germany</aff><aff id="A3"><label>3</label>The Woods Hole Research Center, Falmouth, Massachusetts, USA</aff><aff id="A4"><label>4</label>Hebrew University of Jerusalem, Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot, Israel</aff><aff id="A5"><label>5</label>Department of Geography, University of California, Santa Barbara, California, USA</aff><aff id="A6"><label>6</label>Nancy Université, Université Henri Poincaré, Vandoeuvre les Nancy, France</aff><aff id="A7"><label>7</label>CNRS, Montpellier, France</aff><aff id="A8"><label>8</label>CIRAD, Montpellier, France</aff><aff id="A9"><label>9</label>CRDPI, Pointe-Noire, Republic of Congo</aff><aff id="A10"><label>10</label>CATIE, Turrialba, Costa Rica</aff><aff id="A11"><label>11</label>CEAM, Paterna, Valencia, Spain</aff><aff id="A12"><label>12</label>CREAF, Universitat Autònomade Barcelona, Bellaterra, Barcelona, Spain</aff><aff id="A13"><label>13</label>The Ecosystems Center, Marine Biological Laboratory, Woods Hole, Massachusetts, USA</aff><aff id="A14"><label>14</label>Department of Environmental Science, Policy & Management (ESPM), University of California, Berkeley, California, USA</aff><aff id="A15"><label>15</label>Department of Biology, University Instelling Antwerp, Wilrijk, Belgium</aff><author-notes><corresp id="CR1"><italic>Correspondence to:</italic> M. Bahn (<email>michael.bahn@uibk.ac.at</email>)</corresp><fn id="FN1"><label>†</label><p id="P1">This article is dedicated to Laurent Misson, who died in a tragic accident in March 2010.</p></fn></author-notes><pub-date pub-type="nihms-submitted"><day>15</day><month>1</month><year>2011</year></pub-date><pub-date pub-type="ppub"><day>9</day><month>7</month><year>2010</year></pub-date><pub-date pub-type="pmc-release"><day>03</day><month>1</month><year>2013</year></pub-date><volume>7</volume><issue>7</issue><fpage>2147</fpage><lpage>2157</lpage><permissions><copyright-statement>© Author(s) 2010.</copyright-statement><copyright-year>2010</copyright-year></permissions><self-uri xlink:href="http://www.biogeosciences.net/7/2147/2010/bg-7-2147-2010.pdf"></self-uri><abstract><p id="P2">Soil respiration (SR) constitutes the largest flux of CO<sub>2</sub> from terrestrial ecosystems to the atmosphere. However, there still exist considerable uncertainties as to its actual magnitude, as well as its spatial and interannual variability. Based on a reanalysis and synthesis of 80 site-years for 57 forests, plantations, savannas, shrublands and grasslands from boreal to tropical climates we present evidence that total annual SR is closely related to SR at mean annual soil temperature (SR<sub>MAT</sub>), irrespective of the type of ecosystem and biome. This is theoretically expected for non water-limited ecosystems within most of the globally occurring range of annual temperature variability and sensitivity (<italic>Q</italic><sub>10</sub>). We further show that for seasonally dry sites where annual precipitation (<italic>P</italic>) is lower than potential evapotranspiration (PET), annual SR can be predicted from wet season SR<sub>MAT</sub> corrected for a factor related to <italic>P</italic>/PET. Our finding indicates that it can be sufficient to measure SR<sub>MAT</sub> for obtaining a well constrained estimate of its annual total. This should substantially increase our capacity for assessing the spatial distribution of soil CO<sub>2</sub> emissions across ecosystems, landscapes and regions, and thereby contribute to improving the spatial resolution of a major component of the global carbon cycle.</p></abstract><funding-group><award-group><funding-source country="Austria">Austrian Science Fund FWF : </funding-source><award-id>P 18756-B16 || FWF_</award-id></award-group></funding-group></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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