Fire Regime Has a Greater Impact Than Selective Timber Harvesting on Vegetation in a Sub-Tropical Australian Eucalypt Forest

We compared selectively harvested and unharvested areas located among treatments of annual burning since 1952, triennial burning since 1973 and an area that had received no prescribed burning, but with a single wildfire in 2006 (one fire in 72 years), in a dry sclerophyll eucalypt forest, south-east...

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Autores principales:	Tom Lewis, Tracey Menzies, Anibal Nahuel Pachas
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	fire history vegetation structure species composition disturbance resilience partial harvesting Plant ecology QK900-989
Acceso en línea:	https://doaj.org/article/8ee8b08e261c4f6b89b50288d7e0abab
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spelling	oai:doaj.org-article:8ee8b08e261c4f6b89b50288d7e0abab2021-11-25T17:37:44ZFire Regime Has a Greater Impact Than Selective Timber Harvesting on Vegetation in a Sub-Tropical Australian Eucalypt Forest10.3390/f121114781999-4907https://doaj.org/article/8ee8b08e261c4f6b89b50288d7e0abab2021-10-01T00:00:00Zhttps://www.mdpi.com/1999-4907/12/11/1478https://doaj.org/toc/1999-4907We compared selectively harvested and unharvested areas located among treatments of annual burning since 1952, triennial burning since 1973 and an area that had received no prescribed burning, but with a single wildfire in 2006 (one fire in 72 years), in a dry sclerophyll eucalypt forest, south-eastern Queensland, Australia. Historic fire regime, rather than low-intensity, selective timber harvesting (17% to 37% live tree basal area removed) had a greater impact on a range of vegetation and soil attributes. Plant taxa composition was influenced more by historic fire regime than recent harvesting; of the 25.5% of the variation in taxa composition explained, fire treatments alone accounted for 96.4% of the explained variation and harvesting alone accounted for just 4.8%. Selective harvesting of timber had a predictable influence associated with removal of tree cover and physical impacts associated with extraction of logs. In harvested areas there were increases (<i>p</i> < 0.05) in bare-ground cover and in coarse woody debris volumes and decreases in understorey vegetation height, particularly where woody understorey was present. However, overall, the combined effects of timber harvesting and fire regime were relatively minor. These sub-tropical dry eucalypt forests appear to be resilient to the impacts of combined, but low-intensity disturbances.Tom LewisTracey MenziesAnibal Nahuel PachasMDPI AGarticlefire historyvegetation structurespecies compositiondisturbanceresiliencepartial harvestingPlant ecologyQK900-989ENForests, Vol 12, Iss 1478, p 1478 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	fire history vegetation structure species composition disturbance resilience partial harvesting Plant ecology QK900-989
spellingShingle	fire history vegetation structure species composition disturbance resilience partial harvesting Plant ecology QK900-989 Tom Lewis Tracey Menzies Anibal Nahuel Pachas Fire Regime Has a Greater Impact Than Selective Timber Harvesting on Vegetation in a Sub-Tropical Australian Eucalypt Forest
description	We compared selectively harvested and unharvested areas located among treatments of annual burning since 1952, triennial burning since 1973 and an area that had received no prescribed burning, but with a single wildfire in 2006 (one fire in 72 years), in a dry sclerophyll eucalypt forest, south-eastern Queensland, Australia. Historic fire regime, rather than low-intensity, selective timber harvesting (17% to 37% live tree basal area removed) had a greater impact on a range of vegetation and soil attributes. Plant taxa composition was influenced more by historic fire regime than recent harvesting; of the 25.5% of the variation in taxa composition explained, fire treatments alone accounted for 96.4% of the explained variation and harvesting alone accounted for just 4.8%. Selective harvesting of timber had a predictable influence associated with removal of tree cover and physical impacts associated with extraction of logs. In harvested areas there were increases (<i>p</i> < 0.05) in bare-ground cover and in coarse woody debris volumes and decreases in understorey vegetation height, particularly where woody understorey was present. However, overall, the combined effects of timber harvesting and fire regime were relatively minor. These sub-tropical dry eucalypt forests appear to be resilient to the impacts of combined, but low-intensity disturbances.
format	article
author	Tom Lewis Tracey Menzies Anibal Nahuel Pachas
author_facet	Tom Lewis Tracey Menzies Anibal Nahuel Pachas
author_sort	Tom Lewis
title	Fire Regime Has a Greater Impact Than Selective Timber Harvesting on Vegetation in a Sub-Tropical Australian Eucalypt Forest
title_short	Fire Regime Has a Greater Impact Than Selective Timber Harvesting on Vegetation in a Sub-Tropical Australian Eucalypt Forest
title_full	Fire Regime Has a Greater Impact Than Selective Timber Harvesting on Vegetation in a Sub-Tropical Australian Eucalypt Forest
title_fullStr	Fire Regime Has a Greater Impact Than Selective Timber Harvesting on Vegetation in a Sub-Tropical Australian Eucalypt Forest
title_full_unstemmed	Fire Regime Has a Greater Impact Than Selective Timber Harvesting on Vegetation in a Sub-Tropical Australian Eucalypt Forest
title_sort	fire regime has a greater impact than selective timber harvesting on vegetation in a sub-tropical australian eucalypt forest
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/8ee8b08e261c4f6b89b50288d7e0abab
work_keys_str_mv	AT tomlewis fireregimehasagreaterimpactthanselectivetimberharvestingonvegetationinasubtropicalaustralianeucalyptforest AT traceymenzies fireregimehasagreaterimpactthanselectivetimberharvestingonvegetationinasubtropicalaustralianeucalyptforest AT anibalnahuelpachas fireregimehasagreaterimpactthanselectivetimberharvestingonvegetationinasubtropicalaustralianeucalyptforest
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Fire Regime Has a Greater Impact Than Selective Timber Harvesting on Vegetation in a Sub-Tropical Australian Eucalypt Forest

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