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Research across Australia and globally shows that exclusion or lack of regular mild fire has profoundly altered forest ecosystems, driving forest decline in forests and fire-adapted species. Authors highlight that reduced low-intensity burning leads to soil nutrient imbalances (particularly nitrogen accumulation), dense understories, weakened tree physiology, and heightened susceptibility to pests, parasites, and arbivory. These changes increase fuel loads, making forests more vulnerable to severe, less controllable wildfires.
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Research across multiple regions demonstrates that the absence of regular low-intensity fire is a major driver of forest decline, balanced ecosystems and forest health. Overall, the evidence converges on the importance of mild fire and soil processes in maintaining forest resilience, biodiversity, and long-term health.
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Research demonstrates that exclusion of regular mild fire alters soil moisture, nutrient status, and microbial communities, driving chronic forest decline. Collectively, research studies highlighted above reveal that soil changes from fire exclusion destabilise root physiology, water relations, and stress signalling, making forests increasingly vulnerable to compounding climate and biotic pressures.
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Research shows that exclusion of regular mild fire profoundly alters fungal communities through changes in soils, driving forest decline. The evidence supports that fire regimes and mycorrhizal dynamics jointly underpin forest health, with disruption of either leading to decline. Collectively, these findings support the conclusion that regular mild fire and adaptive management are essential to maintain soil equilibrium, root physiology, and long-term forest health and resilience.