Indigenous Burning Practices Linked to Australian Bushfire Severity

The severity of bushfires in Australia has demonstrably increased following the cessation of Indigenous burning practices after British colonization, according to research published in the journal Nature on October 7, 2026. This ecological shift is attributed to the suppression of traditional land management techniques, which involved controlled burning by Indigenous peoples for millennia. These practices were integral to maintaining a mosaic landscape characterized by a mix of vegetation types and ages, thereby reducing the accumulation of fuel that could sustain large, intense fires.

Before European settlement, Indigenous Australians utilized fire as a tool for land management, influencing vegetation structure and composition. This deliberate application of fire helped to clear undergrowth, promote the growth of certain plant species, and prevent the widespread build-up of dry, flammable material. The landscape was thus managed to be more resilient to natural ignition sources like lightning strikes. The arrival of British colonists in 1788 marked a significant disruption to these long-standing traditions. Colonial authorities often viewed Indigenous burning practices as destructive or uncontrolled, leading to their prohibition and the imposition of new land management policies.

The consequence of suppressing Indigenous burning was a gradual accumulation of biomass and a shift towards more homogenous, fuel-rich forests. This created conditions ripe for more frequent and intense bushfires, a phenomenon observed in the historical record and supported by ecological modeling. The research highlights that the ecological balance maintained by Indigenous fire management was disrupted, leading to a landscape that was more susceptible to catastrophic fire events. This has had profound implications for biodiversity, ecosystems, and human settlements across the continent.

The study underscores the importance of understanding and potentially reintegrating traditional ecological knowledge into contemporary land management strategies. The findings suggest that a return to or adaptation of Indigenous burning practices could play a crucial role in mitigating the risks associated with increasingly severe bushfires, particularly in the context of climate change. The research, published with the DOI 10.1038/d41586-026-03184-y, provides a scientific basis for re-evaluating historical land use and its long-term environmental consequences in Australia.