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A meta-analysis of soil microbial biomass responses to forest disturbances
Climate warming is likely to increase the frequency and severity of forest disturbances, with uncertain consequences for soil microbial communities and their contribution to ecosystem C dynamics. To address this uncertainty, we conducted a meta-analysis of 139 published soil microbial responses to f...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2013
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3687142/ https://www.ncbi.nlm.nih.gov/pubmed/23801985 http://dx.doi.org/10.3389/fmicb.2013.00163 |
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author | Holden, Sandra R. Treseder, Kathleen K. |
author_facet | Holden, Sandra R. Treseder, Kathleen K. |
author_sort | Holden, Sandra R. |
collection | PubMed |
description | Climate warming is likely to increase the frequency and severity of forest disturbances, with uncertain consequences for soil microbial communities and their contribution to ecosystem C dynamics. To address this uncertainty, we conducted a meta-analysis of 139 published soil microbial responses to forest disturbances. These disturbances included abiotic (fire, harvesting, storm) and biotic (insect, pathogen) disturbances. We hypothesized that soil microbial biomass would decline following forest disturbances, but that abiotic disturbances would elicit greater reductions in microbial biomass than biotic disturbances. In support of this hypothesis, across all published studies, disturbances reduced soil microbial biomass by an average of 29.4%. However, microbial responses differed between abiotic and biotic disturbances. Microbial responses were significantly negative following fires, harvest, and storms (48.7, 19.1, and 41.7% reductions in microbial biomass, respectively). In contrast, changes in soil microbial biomass following insect infestation and pathogen-induced tree mortality were non-significant, although biotic disturbances were poorly represented in the literature. When measured separately, fungal and bacterial responses to disturbances mirrored the response of the microbial community as a whole. Changes in microbial abundance following disturbance were significantly positively correlated with changes in microbial respiration. We propose that the differential effect of abiotic and biotic disturbances on microbial biomass may be attributable to differences in soil disruption and organic C removal from forests among disturbance types. Altogether, these results suggest that abiotic forest disturbances may significantly decrease soil microbial abundance, with corresponding consequences for microbial respiration. Further studies are needed on the effect of biotic disturbances on forest soil microbial communities and soil C dynamics. |
format | Online Article Text |
id | pubmed-3687142 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-36871422013-06-25 A meta-analysis of soil microbial biomass responses to forest disturbances Holden, Sandra R. Treseder, Kathleen K. Front Microbiol Microbiology Climate warming is likely to increase the frequency and severity of forest disturbances, with uncertain consequences for soil microbial communities and their contribution to ecosystem C dynamics. To address this uncertainty, we conducted a meta-analysis of 139 published soil microbial responses to forest disturbances. These disturbances included abiotic (fire, harvesting, storm) and biotic (insect, pathogen) disturbances. We hypothesized that soil microbial biomass would decline following forest disturbances, but that abiotic disturbances would elicit greater reductions in microbial biomass than biotic disturbances. In support of this hypothesis, across all published studies, disturbances reduced soil microbial biomass by an average of 29.4%. However, microbial responses differed between abiotic and biotic disturbances. Microbial responses were significantly negative following fires, harvest, and storms (48.7, 19.1, and 41.7% reductions in microbial biomass, respectively). In contrast, changes in soil microbial biomass following insect infestation and pathogen-induced tree mortality were non-significant, although biotic disturbances were poorly represented in the literature. When measured separately, fungal and bacterial responses to disturbances mirrored the response of the microbial community as a whole. Changes in microbial abundance following disturbance were significantly positively correlated with changes in microbial respiration. We propose that the differential effect of abiotic and biotic disturbances on microbial biomass may be attributable to differences in soil disruption and organic C removal from forests among disturbance types. Altogether, these results suggest that abiotic forest disturbances may significantly decrease soil microbial abundance, with corresponding consequences for microbial respiration. Further studies are needed on the effect of biotic disturbances on forest soil microbial communities and soil C dynamics. Frontiers Media S.A. 2013-06-20 /pmc/articles/PMC3687142/ /pubmed/23801985 http://dx.doi.org/10.3389/fmicb.2013.00163 Text en Copyright © 2013 Holden and Treseder. http://creativecommons.org/licenses/by/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in other forums, provided the original authors and source are credited and subject to any copyright notices concerning any third-party graphics etc. |
spellingShingle | Microbiology Holden, Sandra R. Treseder, Kathleen K. A meta-analysis of soil microbial biomass responses to forest disturbances |
title | A meta-analysis of soil microbial biomass responses to forest disturbances |
title_full | A meta-analysis of soil microbial biomass responses to forest disturbances |
title_fullStr | A meta-analysis of soil microbial biomass responses to forest disturbances |
title_full_unstemmed | A meta-analysis of soil microbial biomass responses to forest disturbances |
title_short | A meta-analysis of soil microbial biomass responses to forest disturbances |
title_sort | meta-analysis of soil microbial biomass responses to forest disturbances |
topic | Microbiology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3687142/ https://www.ncbi.nlm.nih.gov/pubmed/23801985 http://dx.doi.org/10.3389/fmicb.2013.00163 |
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