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dc.contributor.authorDörr, Helmut
dc.contributor.authorMünnich, K. O.
dc.date.accessioned2021-02-11T19:51:46Z
dc.date.available2021-02-11T19:51:46Z
dc.date.issued1986-01-01
dc.identifier.citationDörr, H., & Münnich, K. O. (1986). Annual variations of the 14C content of soil CO2. Radiocarbon, 28(2A), 338-345.
dc.identifier.issn0033-8222
dc.identifier.doi10.1017/S0033822200007438
dc.identifier.urihttp://hdl.handle.net/10150/652617
dc.descriptionFrom the 12th International Radiocarbon Conference held in Trondheim, June 24-28, 1985.
dc.description.abstractA 6-year and a 2-year record of 14C measurements of soil CO2 in two soils are presented and discussed. The annual 14C variation of soil CO2 is controlled by the seasonally varying contribution of root respiration and of microbial decomposition of organic matter producing soil CO2. The Delta-14C soil CO2 difference between summer and winter is ca 50 per mil in a soil where turnover of organic matter is fast (r = 2.5a) and ca 100 per mil in a soil of slow turnover (r = 60a). A simple model describing the movement and turnover of organic matter is derived, giving the depth distributions of organic carbon and of 14C. The model needs a subdivision of the carbon reservoir into at least two reservoirs with residence times of r1= 1a and r2 = 100a, respectively, and with a vertical transfer velocity in the order of 0.6mm/a.
dc.language.isoen
dc.publisherAmerican Journal of Science
dc.relation.urlhttp://radiocarbon.webhost.uits.arizona.edu/
dc.rightsCopyright © The American Journal of Science
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectsoils
dc.subjectmethods
dc.subjectC 14
dc.subjectcarbon
dc.subjectisotopes
dc.subjectradioactive isotopes
dc.subjectabsolute age
dc.titleAnnual Variations of the 14C Content of Soil CO2
dc.typeProceedings
dc.typetext
dc.identifier.journalRadiocarbon
dc.description.noteThis material was digitized as part of a cooperative project between Radiocarbon and the University of Arizona Libraries.
dc.description.collectioninformationThe Radiocarbon archives are made available by Radiocarbon and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.
dc.eprint.versionFinal published version
dc.description.admin-noteMigrated from OJS platform February 2021
dc.source.volume28
dc.source.issue2A
dc.source.beginpage338
dc.source.endpage345
refterms.dateFOA2021-02-11T19:51:46Z


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