Short term changes of microbial processes in Icelandic soils to increasing temperatures
Temperature change is acknowledged to have a significant effect on soil biological processes and the corresponding sequestration of carbon and cycling of nutrients. Soils at high latitudes are likely to be particularly impacted by increases in temperature. Icelandic soils experience unusually freque...
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Copernicus Publications
2010
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00029244 2023-05-15T14:59:49+02:00 Short term changes of microbial processes in Icelandic soils to increasing temperatures Guicharnaud, R. Arnalds, O. Paton, G. I. 2010-02 electronic https://doi.org/10.5194/bg-7-671-2010 https://noa.gwlb.de/receive/cop_mods_00029244 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029199/bg-7-671-2010.pdf https://bg.copernicus.org/articles/7/671/2010/bg-7-671-2010.pdf eng eng Copernicus Publications Biogeosciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2158181 -- http://www.copernicus.org/EGU/bg/bg.html -- 1726-4189 https://doi.org/10.5194/bg-7-671-2010 https://noa.gwlb.de/receive/cop_mods_00029244 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029199/bg-7-671-2010.pdf https://bg.copernicus.org/articles/7/671/2010/bg-7-671-2010.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2010 ftnonlinearchiv https://doi.org/10.5194/bg-7-671-2010 2022-02-08T22:47:49Z Temperature change is acknowledged to have a significant effect on soil biological processes and the corresponding sequestration of carbon and cycling of nutrients. Soils at high latitudes are likely to be particularly impacted by increases in temperature. Icelandic soils experience unusually frequent freeze and thaw cycles compare to other Arctic regions, which are increasing due to a warming climate. As a consequence these soils are frequently affected by short term temperature fluctuations. In this study, the short term response of a range of soil microbial parameters (respiration, nutrient availability, microbial biomass carbon, arylphosphatase and dehydrogenase activity) to temperature changes was measured in sub-arctic soils collected from across Iceland. Sample sites reflected two soil temperature regimes (cryic and frigid) and two land uses (pasture and arable). The soils were sampled from the field frozen, equilibrated at −20 °C and then incubated for two weeks at −10 °C, −2 °C, +2 °C and +10 °. Respiration and enzymatic activity were temperature dependent. The soil temperature regime affected the soil microbial biomass carbon sensitivity to temperatures. When soils where sampled from the cryic temperature regime a decreasing soil microbial biomass was detected when temperatures rose above the freezing point. Frigid soils, sampled from milder climatic conditions, where unaffected by difference in temperatures. Nitrogen mineralisation did not change with temperature. At −10 °C, dissolved organic carbon accounted for 88% of the fraction of labile carbon which was significantly greater than that recorded at +10 °C when dissolved organic carbon accounted for as low as 42% of the labile carbon fraction. Article in Journal/Newspaper Arctic Iceland Niedersächsisches Online-Archiv NOA Arctic Biogeosciences 7 2 671 682 |
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Niedersächsisches Online-Archiv NOA |
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English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Guicharnaud, R. Arnalds, O. Paton, G. I. Short term changes of microbial processes in Icelandic soils to increasing temperatures |
topic_facet |
article Verlagsveröffentlichung |
description |
Temperature change is acknowledged to have a significant effect on soil biological processes and the corresponding sequestration of carbon and cycling of nutrients. Soils at high latitudes are likely to be particularly impacted by increases in temperature. Icelandic soils experience unusually frequent freeze and thaw cycles compare to other Arctic regions, which are increasing due to a warming climate. As a consequence these soils are frequently affected by short term temperature fluctuations. In this study, the short term response of a range of soil microbial parameters (respiration, nutrient availability, microbial biomass carbon, arylphosphatase and dehydrogenase activity) to temperature changes was measured in sub-arctic soils collected from across Iceland. Sample sites reflected two soil temperature regimes (cryic and frigid) and two land uses (pasture and arable). The soils were sampled from the field frozen, equilibrated at −20 °C and then incubated for two weeks at −10 °C, −2 °C, +2 °C and +10 °. Respiration and enzymatic activity were temperature dependent. The soil temperature regime affected the soil microbial biomass carbon sensitivity to temperatures. When soils where sampled from the cryic temperature regime a decreasing soil microbial biomass was detected when temperatures rose above the freezing point. Frigid soils, sampled from milder climatic conditions, where unaffected by difference in temperatures. Nitrogen mineralisation did not change with temperature. At −10 °C, dissolved organic carbon accounted for 88% of the fraction of labile carbon which was significantly greater than that recorded at +10 °C when dissolved organic carbon accounted for as low as 42% of the labile carbon fraction. |
format |
Article in Journal/Newspaper |
author |
Guicharnaud, R. Arnalds, O. Paton, G. I. |
author_facet |
Guicharnaud, R. Arnalds, O. Paton, G. I. |
author_sort |
Guicharnaud, R. |
title |
Short term changes of microbial processes in Icelandic soils to increasing temperatures |
title_short |
Short term changes of microbial processes in Icelandic soils to increasing temperatures |
title_full |
Short term changes of microbial processes in Icelandic soils to increasing temperatures |
title_fullStr |
Short term changes of microbial processes in Icelandic soils to increasing temperatures |
title_full_unstemmed |
Short term changes of microbial processes in Icelandic soils to increasing temperatures |
title_sort |
short term changes of microbial processes in icelandic soils to increasing temperatures |
publisher |
Copernicus Publications |
publishDate |
2010 |
url |
https://doi.org/10.5194/bg-7-671-2010 https://noa.gwlb.de/receive/cop_mods_00029244 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029199/bg-7-671-2010.pdf https://bg.copernicus.org/articles/7/671/2010/bg-7-671-2010.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Iceland |
genre_facet |
Arctic Iceland |
op_relation |
Biogeosciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2158181 -- http://www.copernicus.org/EGU/bg/bg.html -- 1726-4189 https://doi.org/10.5194/bg-7-671-2010 https://noa.gwlb.de/receive/cop_mods_00029244 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029199/bg-7-671-2010.pdf https://bg.copernicus.org/articles/7/671/2010/bg-7-671-2010.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/bg-7-671-2010 |
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Biogeosciences |
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7 |
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2 |
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671 |
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682 |
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1766331937096466432 |