Fifteen years of climate change manipulations alter soil microbial communities in a subarctic heath ecosystem
Soil microbial biomass in arctic heaths has been shown to be largely unaffected by treatments simulating climate change with temperature, nutrient and light manipulations. Here, we demonstrate that more than 10 years is needed for development of significant responses, and that changes in microbial b...
Published in: | Global Change Biology |
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Online Access: | https://lup.lub.lu.se/record/167220 https://doi.org/10.1111/j.1365-2486.2006.01263.x |
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ftulundlup:oai:lup.lub.lu.se:55aa6150-f461-4b4c-a3ed-c3771ed0b7e3 2023-05-15T15:10:38+02:00 Fifteen years of climate change manipulations alter soil microbial communities in a subarctic heath ecosystem Rinnan, Riikka Michelsen, A Bååth, Erland Jonasson, S 2007 https://lup.lub.lu.se/record/167220 https://doi.org/10.1111/j.1365-2486.2006.01263.x eng eng Wiley-Blackwell https://lup.lub.lu.se/record/167220 http://dx.doi.org/10.1111/j.1365-2486.2006.01263.x wos:000243403900003 scopus:33846239321 Global Change Biology; 13(1), pp 28-39 (2007) ISSN: 1354-1013 Biological Sciences contributiontojournal/systematicreview info:eu-repo/semantics/article text 2007 ftulundlup https://doi.org/10.1111/j.1365-2486.2006.01263.x 2023-02-01T23:28:26Z Soil microbial biomass in arctic heaths has been shown to be largely unaffected by treatments simulating climate change with temperature, nutrient and light manipulations. Here, we demonstrate that more than 10 years is needed for development of significant responses, and that changes in microbial biomass are accompanied with strong alterations in microbial community composition. In contrast to slight or nonsignificant responses after 5, 6 and 10 treatment years, 15 years of inorganic NPK fertilizer addition to a subarctic heath had strong effects on the microbial community and, as observed for the first time, warming and shading also led to significant responses, often in opposite direction to the fertilization responses. The effects were clearer in the top 5 cm soil than at the 5-10 cm depth. Fertilization increased microbial biomass C and more than doubled microbial biomass P compared to the non-fertilized plots. However, it only increased microbial biomass N at the 5-10 cm depth. Fertilization increased fungal biomass and the relative abundance of phospholipid fatty acid (PLFA) markers of gram-positive bacteria. Warming and shading decreased the relative abundance of fungal PLFAs, and shading also altered the composition of the bacterial community. The long time lag in responses may be associated with indirect effects of the gradual changes in the plant biomass and community composition. The contrasting responses to warming and fertilization treatments show that results from fertilizer addition may not be similar to the effects of increased nutrient mineralization and availability following climatic warming. Article in Journal/Newspaper Arctic Climate change Subarctic Lund University Publications (LUP) Arctic Global Change Biology 13 1 28 39 |
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Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Biological Sciences |
spellingShingle |
Biological Sciences Rinnan, Riikka Michelsen, A Bååth, Erland Jonasson, S Fifteen years of climate change manipulations alter soil microbial communities in a subarctic heath ecosystem |
topic_facet |
Biological Sciences |
description |
Soil microbial biomass in arctic heaths has been shown to be largely unaffected by treatments simulating climate change with temperature, nutrient and light manipulations. Here, we demonstrate that more than 10 years is needed for development of significant responses, and that changes in microbial biomass are accompanied with strong alterations in microbial community composition. In contrast to slight or nonsignificant responses after 5, 6 and 10 treatment years, 15 years of inorganic NPK fertilizer addition to a subarctic heath had strong effects on the microbial community and, as observed for the first time, warming and shading also led to significant responses, often in opposite direction to the fertilization responses. The effects were clearer in the top 5 cm soil than at the 5-10 cm depth. Fertilization increased microbial biomass C and more than doubled microbial biomass P compared to the non-fertilized plots. However, it only increased microbial biomass N at the 5-10 cm depth. Fertilization increased fungal biomass and the relative abundance of phospholipid fatty acid (PLFA) markers of gram-positive bacteria. Warming and shading decreased the relative abundance of fungal PLFAs, and shading also altered the composition of the bacterial community. The long time lag in responses may be associated with indirect effects of the gradual changes in the plant biomass and community composition. The contrasting responses to warming and fertilization treatments show that results from fertilizer addition may not be similar to the effects of increased nutrient mineralization and availability following climatic warming. |
format |
Article in Journal/Newspaper |
author |
Rinnan, Riikka Michelsen, A Bååth, Erland Jonasson, S |
author_facet |
Rinnan, Riikka Michelsen, A Bååth, Erland Jonasson, S |
author_sort |
Rinnan, Riikka |
title |
Fifteen years of climate change manipulations alter soil microbial communities in a subarctic heath ecosystem |
title_short |
Fifteen years of climate change manipulations alter soil microbial communities in a subarctic heath ecosystem |
title_full |
Fifteen years of climate change manipulations alter soil microbial communities in a subarctic heath ecosystem |
title_fullStr |
Fifteen years of climate change manipulations alter soil microbial communities in a subarctic heath ecosystem |
title_full_unstemmed |
Fifteen years of climate change manipulations alter soil microbial communities in a subarctic heath ecosystem |
title_sort |
fifteen years of climate change manipulations alter soil microbial communities in a subarctic heath ecosystem |
publisher |
Wiley-Blackwell |
publishDate |
2007 |
url |
https://lup.lub.lu.se/record/167220 https://doi.org/10.1111/j.1365-2486.2006.01263.x |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Subarctic |
genre_facet |
Arctic Climate change Subarctic |
op_source |
Global Change Biology; 13(1), pp 28-39 (2007) ISSN: 1354-1013 |
op_relation |
https://lup.lub.lu.se/record/167220 http://dx.doi.org/10.1111/j.1365-2486.2006.01263.x wos:000243403900003 scopus:33846239321 |
op_doi |
https://doi.org/10.1111/j.1365-2486.2006.01263.x |
container_title |
Global Change Biology |
container_volume |
13 |
container_issue |
1 |
container_start_page |
28 |
op_container_end_page |
39 |
_version_ |
1766341623233380352 |