Bacterial and fungal response to nitrogen fertilization in three coniferous forest soils
Forest soil carbon (C) pools may act as sinks for, or sources of, atmospheric carbon dioxide, while nitrogen (N) fertilization may affect the net exchange of C in forest ecosystems. Since all major C and N processes in soil are driven by soil microorganisms, we evaluated the effects of N fertilizati...
Published in: | Soil Biology and Biochemistry |
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Online Access: | https://lup.lub.lu.se/record/965789 https://doi.org/10.1016/j.soilbio.2007.08.019 |
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ftulundlup:oai:lup.lub.lu.se:4d711042-d9c1-4006-9a11-b39e8e69b95f 2023-05-15T17:44:56+02:00 Bacterial and fungal response to nitrogen fertilization in three coniferous forest soils Demoling, Fredrik Nilsson, Lars Ola Bååth, Erland 2008 https://lup.lub.lu.se/record/965789 https://doi.org/10.1016/j.soilbio.2007.08.019 eng eng Elsevier https://lup.lub.lu.se/record/965789 http://dx.doi.org/10.1016/j.soilbio.2007.08.019 wos:000251655800010 scopus:36048936654 Soil Biology & Biochemistry; 40(2), pp 370-379 (2008) ISSN: 0038-0717 Biological Sciences PLFA limiting nutrient nitrogen fertilization coniferous forest soil fungi bacteria contributiontojournal/article info:eu-repo/semantics/article text 2008 ftulundlup https://doi.org/10.1016/j.soilbio.2007.08.019 2023-02-01T23:35:27Z Forest soil carbon (C) pools may act as sinks for, or sources of, atmospheric carbon dioxide, while nitrogen (N) fertilization may affect the net exchange of C in forest ecosystems. Since all major C and N processes in soil are driven by soil microorganisms, we evaluated the effects of N fertilization on biomass and bacterial and fungal activity in soils from three Norway spruce forests with different climatic and N availability conditions. N deposition and net N mineralization were higher at the sites in southern Sweden than at the site in northern Sweden. We also studied the extent to which N fertilization altered the nutrient(s) limiting bacterial growth in soil. We found that on average microbial biomass was reduced by similar to 40% and microbial activity by similar to 30% in fertilized plots. Bacterial growth rates were more negatively affected by fertilization than fungal growth rates, while fungal biomass (estimated using the phospholipid fatty acid (PLFA) 18:2 omega 6,9) decreased more than bacterial biomass as a consequence of fertilization. The microbial community structure (indicated by the PLFA pattern) was changed by fertilization, but not in the same way at the three sites. Soil bacteria were limited by a lack of carbon in all forests, with the carbon limitation becoming more evident in fertilized plots, especially in the forests that had previously been the most N-limited ones. This study thus showed that the effects of N fertilization differed depending on the conditions at the site prior to fertilization. (c) 2007 Elsevier Ltd. All rights reserved. Article in Journal/Newspaper Northern Sweden Lund University Publications (LUP) Norway Soil Biology and Biochemistry 40 2 370 379 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Biological Sciences PLFA limiting nutrient nitrogen fertilization coniferous forest soil fungi bacteria |
spellingShingle |
Biological Sciences PLFA limiting nutrient nitrogen fertilization coniferous forest soil fungi bacteria Demoling, Fredrik Nilsson, Lars Ola Bååth, Erland Bacterial and fungal response to nitrogen fertilization in three coniferous forest soils |
topic_facet |
Biological Sciences PLFA limiting nutrient nitrogen fertilization coniferous forest soil fungi bacteria |
description |
Forest soil carbon (C) pools may act as sinks for, or sources of, atmospheric carbon dioxide, while nitrogen (N) fertilization may affect the net exchange of C in forest ecosystems. Since all major C and N processes in soil are driven by soil microorganisms, we evaluated the effects of N fertilization on biomass and bacterial and fungal activity in soils from three Norway spruce forests with different climatic and N availability conditions. N deposition and net N mineralization were higher at the sites in southern Sweden than at the site in northern Sweden. We also studied the extent to which N fertilization altered the nutrient(s) limiting bacterial growth in soil. We found that on average microbial biomass was reduced by similar to 40% and microbial activity by similar to 30% in fertilized plots. Bacterial growth rates were more negatively affected by fertilization than fungal growth rates, while fungal biomass (estimated using the phospholipid fatty acid (PLFA) 18:2 omega 6,9) decreased more than bacterial biomass as a consequence of fertilization. The microbial community structure (indicated by the PLFA pattern) was changed by fertilization, but not in the same way at the three sites. Soil bacteria were limited by a lack of carbon in all forests, with the carbon limitation becoming more evident in fertilized plots, especially in the forests that had previously been the most N-limited ones. This study thus showed that the effects of N fertilization differed depending on the conditions at the site prior to fertilization. (c) 2007 Elsevier Ltd. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Demoling, Fredrik Nilsson, Lars Ola Bååth, Erland |
author_facet |
Demoling, Fredrik Nilsson, Lars Ola Bååth, Erland |
author_sort |
Demoling, Fredrik |
title |
Bacterial and fungal response to nitrogen fertilization in three coniferous forest soils |
title_short |
Bacterial and fungal response to nitrogen fertilization in three coniferous forest soils |
title_full |
Bacterial and fungal response to nitrogen fertilization in three coniferous forest soils |
title_fullStr |
Bacterial and fungal response to nitrogen fertilization in three coniferous forest soils |
title_full_unstemmed |
Bacterial and fungal response to nitrogen fertilization in three coniferous forest soils |
title_sort |
bacterial and fungal response to nitrogen fertilization in three coniferous forest soils |
publisher |
Elsevier |
publishDate |
2008 |
url |
https://lup.lub.lu.se/record/965789 https://doi.org/10.1016/j.soilbio.2007.08.019 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_source |
Soil Biology & Biochemistry; 40(2), pp 370-379 (2008) ISSN: 0038-0717 |
op_relation |
https://lup.lub.lu.se/record/965789 http://dx.doi.org/10.1016/j.soilbio.2007.08.019 wos:000251655800010 scopus:36048936654 |
op_doi |
https://doi.org/10.1016/j.soilbio.2007.08.019 |
container_title |
Soil Biology and Biochemistry |
container_volume |
40 |
container_issue |
2 |
container_start_page |
370 |
op_container_end_page |
379 |
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1766147245748518912 |