Journal
CONSERVATION LETTERS
Volume 7, Issue 4, Pages 355-370Publisher
WILEY
DOI: 10.1111/conl.12122
Keywords
Fire; fire severity; logging; forests; stand age; probit regression; south-eastern Australia
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Funding
- Melbourne Sustainable Society Institute at the University of Melbourne
- Australian Research Council (ARC) Centre of Excellence for Environmental Decisions
- National Environmental Research Program Environmental Decisions Hub
- ARC
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We quantify the relationship between forest stand age and fire severity using a detailed case study of Mountain Ash (Eucalyptus regnans Muell) forest burned in south-eastern Australia in 2009. We focused on two important areas of Mountain Ash forest that feature a range of growth stages and disturbance histories. Using probit regression analysis, we identified a strong relationship between the age of a Mountain Ash forest and the severity of damage that the forest sustained from the fires under extreme weather conditions. Stands of Mountain Ash trees between the ages of 7 to 36 years mostly sustained canopy consumption and scorching, which are impacts resulting from high-severity fire. High-severity fire leading to canopy consumption almost never occurred in young stands (<7 years) and also was infrequent in older (>40 years) stands of Mountain Ash. We discuss the significant forest conservation and management implications of these results for Mountain Ash forests as well as other similar biomes, where high-severity fire is a common form of disturbance.
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