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Intensive ground vegetation growth mitigates the carbon loss after forest disturbance
AIMS: Slow or failed tree regeneration after forest disturbance is increasingly observed in the central European Alps, potentially amplifying the carbon (C) loss from disturbance. We aimed at quantifying C dynamics of a poorly regenerating disturbance site with a special focus on the role of non-woo...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer International Publishing
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5711974/ https://www.ncbi.nlm.nih.gov/pubmed/29225378 http://dx.doi.org/10.1007/s11104-017-3384-9 |
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author | Zehetgruber, Bernhard Kobler, Johannes Dirnböck, Thomas Jandl, Robert Seidl, Rupert Schindlbacher, Andreas |
author_facet | Zehetgruber, Bernhard Kobler, Johannes Dirnböck, Thomas Jandl, Robert Seidl, Rupert Schindlbacher, Andreas |
author_sort | Zehetgruber, Bernhard |
collection | PubMed |
description | AIMS: Slow or failed tree regeneration after forest disturbance is increasingly observed in the central European Alps, potentially amplifying the carbon (C) loss from disturbance. We aimed at quantifying C dynamics of a poorly regenerating disturbance site with a special focus on the role of non-woody ground vegetation. METHODS: Soil CO(2) efflux, fine root biomass, ground vegetation biomass, tree increment and litter input were assessed in (i) an undisturbed section of a ~ 110 years old Norway spruce stand, (ii) in a disturbed section which was clear-cut six years ago (no tree regeneration), and (iii) in a disturbed section which was clear-cut three years ago (no tree regeneration). RESULTS: Total soil CO(2) efflux was similar across all stand sections (8.5 ± 0.2 to 8.9 ± 0.3 t C ha(−1) yr.(−1)). The undisturbed forest served as atmospheric C sink (2.1 t C ha(−1) yr.(−1)), whereas both clearings were C sources to the atmosphere. The source strength three years after disturbance (−5.5 t C ha(−1) yr.(−1)) was almost twice as high as six years after disturbance (−2.9 t C ha(−1) yr.(−1)), with declining heterotrophic soil respiration and the high productivity of dense graminoid ground vegetation mitigating C loss. CONCLUSIONS: C loss after disturbance decreases with time and ground vegetation growth. Dense non-woody ground vegetation cover can hamper tree regeneration but simultaneously decrease the ecosystem C loss. The role of ground vegetation should be more explicitly taken into account in forest C budgets assessing disturbance effects. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (https://doi.org/10.1007/s11104-017-3384-9) contains supplementary material, which is available to authorized users. |
format | Online Article Text |
id | pubmed-5711974 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Springer International Publishing |
record_format | MEDLINE/PubMed |
spelling | pubmed-57119742017-12-07 Intensive ground vegetation growth mitigates the carbon loss after forest disturbance Zehetgruber, Bernhard Kobler, Johannes Dirnböck, Thomas Jandl, Robert Seidl, Rupert Schindlbacher, Andreas Plant Soil Regular Article AIMS: Slow or failed tree regeneration after forest disturbance is increasingly observed in the central European Alps, potentially amplifying the carbon (C) loss from disturbance. We aimed at quantifying C dynamics of a poorly regenerating disturbance site with a special focus on the role of non-woody ground vegetation. METHODS: Soil CO(2) efflux, fine root biomass, ground vegetation biomass, tree increment and litter input were assessed in (i) an undisturbed section of a ~ 110 years old Norway spruce stand, (ii) in a disturbed section which was clear-cut six years ago (no tree regeneration), and (iii) in a disturbed section which was clear-cut three years ago (no tree regeneration). RESULTS: Total soil CO(2) efflux was similar across all stand sections (8.5 ± 0.2 to 8.9 ± 0.3 t C ha(−1) yr.(−1)). The undisturbed forest served as atmospheric C sink (2.1 t C ha(−1) yr.(−1)), whereas both clearings were C sources to the atmosphere. The source strength three years after disturbance (−5.5 t C ha(−1) yr.(−1)) was almost twice as high as six years after disturbance (−2.9 t C ha(−1) yr.(−1)), with declining heterotrophic soil respiration and the high productivity of dense graminoid ground vegetation mitigating C loss. CONCLUSIONS: C loss after disturbance decreases with time and ground vegetation growth. Dense non-woody ground vegetation cover can hamper tree regeneration but simultaneously decrease the ecosystem C loss. The role of ground vegetation should be more explicitly taken into account in forest C budgets assessing disturbance effects. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (https://doi.org/10.1007/s11104-017-3384-9) contains supplementary material, which is available to authorized users. Springer International Publishing 2017-08-24 2017 /pmc/articles/PMC5711974/ /pubmed/29225378 http://dx.doi.org/10.1007/s11104-017-3384-9 Text en © The Author(s) 2017 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
spellingShingle | Regular Article Zehetgruber, Bernhard Kobler, Johannes Dirnböck, Thomas Jandl, Robert Seidl, Rupert Schindlbacher, Andreas Intensive ground vegetation growth mitigates the carbon loss after forest disturbance |
title | Intensive ground vegetation growth mitigates the carbon loss after forest disturbance |
title_full | Intensive ground vegetation growth mitigates the carbon loss after forest disturbance |
title_fullStr | Intensive ground vegetation growth mitigates the carbon loss after forest disturbance |
title_full_unstemmed | Intensive ground vegetation growth mitigates the carbon loss after forest disturbance |
title_short | Intensive ground vegetation growth mitigates the carbon loss after forest disturbance |
title_sort | intensive ground vegetation growth mitigates the carbon loss after forest disturbance |
topic | Regular Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5711974/ https://www.ncbi.nlm.nih.gov/pubmed/29225378 http://dx.doi.org/10.1007/s11104-017-3384-9 |
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