dc.contributor.author | Vanhala, Pekka | |
dc.contributor.author | Karhu, Kristiina | |
dc.contributor.author | Tuomi, Mikko | |
dc.contributor.author | Sonninen, Eloni | |
dc.contributor.author | Jungner, Högne | |
dc.contributor.author | Fritze, Hannu | |
dc.contributor.author | Liski, Jari | |
dc.date.accessioned | 2017-03-07T18:09:49Z | |
dc.date.available | 2017-03-07T18:09:49Z | |
dc.date.issued | 2007-11-01 | |
dc.identifier.citation | Vanhala , P , Karhu , K , Tuomi , M , Sonninen , E , Jungner , H , Fritze , H & Liski , J 2007 , ' Old soil carbon is more temperature sensitive than the young in an agricultural field ' , Soil Biology and Biochemistry , vol. 39 , no. 11 , pp. 2967-2970 . https://doi.org/10.1016/j.soilbio.2007.05.022 | |
dc.identifier.issn | 0038-0717 | |
dc.identifier.uri | http://hdl.handle.net/2299/17685 | |
dc.description | Pekka Vanhala, et al, 'Old soil carbon is more temperature sensitive than the young in an agricultural field', Soil Biology and Biochemistry, Vol. 39 (11): 2967-2970, first published online 26 June 2007. The version of record is available online at doi: http://dx.doi.org/10.1016/j.soilbio.2007.05.022 © 2007 Elsevier Ltd. All rights reserved. | |
dc.description.abstract | Changes in the carbon stock of soil in response to climate change would significantly affect the atmospheric carbon dioxide concentration and consequently climate. The isotopes of carbon provide a means to study the temperature sensitivities of different soil carbon fractions. Where C3 vegetation has changed for C4, soil organic matter (SOM) from the different origins have different 13C/12C ratios. Relying on this feature, we took soil samples from a control field and a field where ordinary grain (C3) vegetation was replaced by maize (C4), 5 years ago. We measured the respiration rate and the 13C/12C ratio of the CO2 produced by the samples at different temperatures. Based on these measurements, we quantified that Q10 was 3.4-3.6 for the total CO2 production while it was 2.4-2.9 at 20 °C for the maize-derived young carbon and 3.6 for the older C3-derived carbon. Our results suggest that climatic warming will accelerate especially the decomposition of the large pool of old soil carbon in these fields. | en |
dc.format.extent | 4 | |
dc.language.iso | eng | |
dc.relation.ispartof | Soil Biology and Biochemistry | |
dc.subject | Carbon dioxide | |
dc.subject | Carbon isotopes | |
dc.subject | Mineralization | |
dc.subject | Temperature sensitivity | |
dc.subject | Soil Science | |
dc.subject | Biochemistry | |
dc.subject | Ecology | |
dc.title | Old soil carbon is more temperature sensitive than the young in an agricultural field | en |
dc.contributor.institution | Centre for Astrophysics Research (CAR) | |
dc.description.status | Peer reviewed | |
dc.identifier.url | http://www.scopus.com/inward/record.url?scp=34547752375&partnerID=8YFLogxK | |
rioxxterms.versionofrecord | 10.1016/j.soilbio.2007.05.022 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |