Response of Soil Denitrifying Communities to Long-Term Prescribed Burning in Two Australian Sclerophyll Forests

Xian Liu; Chengrong Chen; Weijin Wang; Jane M Hughes; Tom Lewis

doi:10.1080/01490451.2014.908981

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Response of Soil Denitrifying Communities to Long-Term Prescribed Burning in Two Australian Sclerophyll Forests

Journal article

Peer reviewed

Response of Soil Denitrifying Communities to Long-Term Prescribed Burning in Two Australian Sclerophyll Forests

Xian Liu, Chengrong Chen, Weijin Wang, Jane M Hughes and Tom Lewis

Geomicrobiology Journal, Vol.32(7), pp.577-584

2015

DOI: https://doi.org/10.1080/01490451.2014.908981

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Abstract

denitrifying community

long-term repeated burning

qPCR

sclerophyll forest

soil moisture

Low-intensity prescribed burning is a common forest management tool and plays a major role in modifying biogeochemical cycling through the alteration of substrate availability and microbial communities. In this study, we assessed the response of microbial community to repeated prescribed burning in two sclerophyll forests (the Bauple site, dry, annual rainfall 1000 mm; and the Peachester site, wet, 1711 mm) in southeast Queensland, Australia. At the dry sclerophyll forest (the Bauple site), annual and triennial burning did not significantly alter the soil carbon (C) and nitrogen (N) content, while at the wet scleophyll forest (the Peachester site), two yearly burnings resulted in significantly lower soil total C and N contents compared to the long unburnt treatment. In spite of these different responses, prescribed burning regimes did not significantly influence the abundance of 16S rRNA or denitrifying gene (narG, nirK, nirS, nosZ) at both sites. These results indicated that, long-term prescribed burning has little effect on the denitrifying communities, while it has varying effects on soil chemical properties at the two sites, which are likely to be explained by differences in vegetation type and soil moisture regime.

Details

Title: Response of Soil Denitrifying Communities to Long-Term Prescribed Burning in Two Australian Sclerophyll Forests
Authors: Xian Liu (Author) - Griffith University
Chengrong Chen (Author) - Griffith University
Weijin Wang (Author) - Department of Science, Information Technology, Innovation and the Arts
Jane M Hughes (Author) - Griffith University
Tom Lewis (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Publication details: Geomicrobiology Journal, Vol.32(7), pp.577-584
Publisher: Taylor & Francis Inc.
Date published: 2015
DOI: 10.1080/01490451.2014.908981
ISSN: 0149-0451
Organisation Unit: University of the Sunshine Coast, Queensland; Forest Research Institute
Language: English
Record Identifier: 99449322502621
Output Type: Journal article

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