Spatial variability in forest soil CO2 efflux assessed with a calibrated soda lime technique
Identifieur interne : 000448 ( Istex/Corpus ); précédent : 000447; suivant : 000449Spatial variability in forest soil CO2 efflux assessed with a calibrated soda lime technique
Auteurs : A. Janssens ; A. CeulemansSource :
- Ecology Letters [ 1461-023X ] ; 1998-09.
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Abstract
Accurate estimates of soil CO2 efflux are important in the current discussion on the carbon balance of forests, and can be used to validate models and remotely sensed data. Due to the typically large spatial variability, large sample numbers are required to estimate mean forest soil CO2 efflux with reasonable confidence intervals. Most infrared gas analysis (IRGA) systems are not well suited to simultaneously produce daily means and handle this spatial variability problem. The soda lime technique gives daily means and allows the required large sample numbers, but is less accurate than the IRGA systems. Using an elaborate cross‐calibration, we tried to combine the accuracy of an IRGA method with the spatial integration potential of the soda lime technique. This paper reports on the calibration technique used to improve the accuracy of the soda lime technique and confirms the spatial variability in soil CO2 efflux in a heterogeneous forest.
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DOI: 10.1046/j.1461-0248.1998.00026.x
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ISTEX:848FCB7F25ED8B6EDDCE435F8C05FF7B263A46D6Le document en format XML
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Janssens</name><affiliation><mods:affiliation>University of Antwerp, UIA, Department of Biology, B‐2610 Antwerpen (Wilrijk), Belgium.,</mods:affiliation></affiliation></author><author><name sortKey="Ceulemans, A" sort="Ceulemans, A" uniqKey="Ceulemans A" first="A." last="Ceulemans">A. 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The Biological Environment</title></host></json:item></refBibs><genre><json:string>article</json:string></genre><host><volume>1</volume><publisherId><json:string>ELE</json:string></publisherId><pages><total>4</total><last>98</last><first>95</first></pages><issn><json:string>1461-023X</json:string></issn><issue>2</issue><genre><json:string>journal</json:string></genre><language><json:string>unknown</json:string></language><eissn><json:string>1461-0248</json:string></eissn><title>Ecology Letters</title><doi><json:string>10.1111/(ISSN)1461-0248</json:string></doi></host><categories><wos><json:string>science</json:string><json:string>ecology</json:string></wos><scienceMetrix><json:string>natural sciences</json:string><json:string>biology</json:string><json:string>ecology</json:string></scienceMetrix></categories><publicationDate>1998</publicationDate><copyrightDate>1998</copyrightDate><doi><json:string>10.1046/j.1461-0248.1998.00026.x</json:string></doi><id>848FCB7F25ED8B6EDDCE435F8C05FF7B263A46D6</id><score>1</score><fulltext><json:item><extension>pdf</extension><original>true</original><mimetype>application/pdf</mimetype><uri>https://api.istex.fr/document/848FCB7F25ED8B6EDDCE435F8C05FF7B263A46D6/fulltext/pdf</uri></json:item><json:item><extension>zip</extension><original>false</original><mimetype>application/zip</mimetype><uri>https://api.istex.fr/document/848FCB7F25ED8B6EDDCE435F8C05FF7B263A46D6/fulltext/zip</uri></json:item><istex:fulltextTEI uri="https://api.istex.fr/document/848FCB7F25ED8B6EDDCE435F8C05FF7B263A46D6/fulltext/tei"><teiHeader><fileDesc><titleStmt><title level="a" type="main" xml:lang="en">Spatial variability in forest soil CO2 efflux assessed with a calibrated soda lime technique</title></titleStmt><publicationStmt><authority>ISTEX</authority><publisher>Blackwell Science Ltd</publisher><pubPlace>Oxford, UK</pubPlace><availability><p>Blackwell Science Ltd</p></availability><date>1998</date></publicationStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a" type="main" xml:lang="en">Spatial variability in forest soil CO2 efflux assessed with a calibrated soda lime technique</title><author xml:id="author-1"><persName><surname>Janssens</surname></persName><affiliation>University of Antwerp, UIA, Department of Biology, B‐2610 Antwerpen (Wilrijk), Belgium.,</affiliation></author><author xml:id="author-2"><persName><surname>Ceulemans</surname></persName><affiliation>University of Antwerp, UIA, Department of Biology, B‐2610 Antwerpen (Wilrijk), Belgium.</affiliation></author></analytic><monogr><title level="j">Ecology Letters</title><idno type="pISSN">1461-023X</idno><idno type="eISSN">1461-0248</idno><idno type="DOI">10.1111/(ISSN)1461-0248</idno><imprint><publisher>Blackwell Science Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="1998-09"></date><biblScope unit="volume">1</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="95">95</biblScope><biblScope unit="page" to="98">98</biblScope></imprint></monogr><idno type="istex">848FCB7F25ED8B6EDDCE435F8C05FF7B263A46D6</idno><idno type="DOI">10.1046/j.1461-0248.1998.00026.x</idno><idno type="ArticleID">ELE026</idno></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>1998</date></creation><langUsage><language ident="en">en</language></langUsage><abstract xml:lang="en"><p>Accurate estimates of soil CO2 efflux are important in the current discussion on the carbon balance of forests, and can be used to validate models and remotely sensed data. Due to the typically large spatial variability, large sample numbers are required to estimate mean forest soil CO2 efflux with reasonable confidence intervals. Most infrared gas analysis (IRGA) systems are not well suited to simultaneously produce daily means and handle this spatial variability problem. The soda lime technique gives daily means and allows the required large sample numbers, but is less accurate than the IRGA systems. Using an elaborate cross‐calibration, we tried to combine the accuracy of an IRGA method with the spatial integration potential of the soda lime technique. 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This paper reports on the calibration technique used to improve the accuracy of the soda lime technique and confirms the spatial variability in soil CO<sub>2</sub> efflux in a heterogeneous forest.</p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Spatial variability in forest soil CO2 efflux assessed with a calibrated soda lime technique</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Spatial variability in forest soil CO2 efflux assessed with a calibrated soda lime technique</title></titleInfo><name type="personal"><namePart>Janssens</namePart><namePart type="family">Janssens</namePart><affiliation>University of Antwerp, UIA, Department of Biology, B‐2610 Antwerpen (Wilrijk), Belgium.,</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart>Ceulemans</namePart><namePart type="family">Ceulemans</namePart><affiliation>University of Antwerp, UIA, Department of Biology, B‐2610 Antwerpen (Wilrijk), Belgium.</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article" displayLabel="article"></genre><originInfo><publisher>Blackwell Science Ltd</publisher><place><placeTerm type="text">Oxford, UK</placeTerm></place><dateIssued encoding="w3cdtf">1998-09</dateIssued><copyrightDate encoding="w3cdtf">1998</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType><extent unit="figures">2</extent><extent unit="references">20</extent></physicalDescription><abstract lang="en">Accurate estimates of soil CO2 efflux are important in the current discussion on the carbon balance of forests, and can be used to validate models and remotely sensed data. Due to the typically large spatial variability, large sample numbers are required to estimate mean forest soil CO2 efflux with reasonable confidence intervals. Most infrared gas analysis (IRGA) systems are not well suited to simultaneously produce daily means and handle this spatial variability problem. The soda lime technique gives daily means and allows the required large sample numbers, but is less accurate than the IRGA systems. Using an elaborate cross‐calibration, we tried to combine the accuracy of an IRGA method with the spatial integration potential of the soda lime technique. This paper reports on the calibration technique used to improve the accuracy of the soda lime technique and confirms the spatial variability in soil CO2 efflux in a heterogeneous forest.</abstract><subject lang="en"><genre>keywords</genre><topic>Forest ecosystems</topic><topic>Pinus sylvestris</topic><topic>Quercus robur</topic><topic>soda lime technique</topic><topic>soil CO2 efflux</topic><topic>spatial variability</topic></subject><relatedItem type="host"><titleInfo><title>Ecology Letters</title></titleInfo><genre type="journal">journal</genre><identifier type="ISSN">1461-023X</identifier><identifier type="eISSN">1461-0248</identifier><identifier type="DOI">10.1111/(ISSN)1461-0248</identifier><identifier type="PublisherID">ELE</identifier><part><date>1998</date><detail type="volume"><caption>vol.</caption><number>1</number></detail><detail type="issue"><caption>no.</caption><number>2</number></detail><extent unit="pages"><start>95</start><end>98</end><total>4</total></extent></part></relatedItem><identifier type="istex">848FCB7F25ED8B6EDDCE435F8C05FF7B263A46D6</identifier><identifier type="DOI">10.1046/j.1461-0248.1998.00026.x</identifier><identifier type="ArticleID">ELE026</identifier><accessCondition type="use and reproduction" contentType="copyright">Blackwell Science Ltd</accessCondition><recordInfo><recordContentSource>WILEY</recordContentSource><recordOrigin>Blackwell Science Ltd</recordOrigin></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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