How much do you think the regrowth that has replaced the original forests in Australia resembles what was once here? Old forests that had huge trees spaced out with a low under story. Now we have lots of smaller trees closer together competing to dominate and suppress the competition. The aboriginals mainly burned the grassland areas to encourage fresh new grass to attract kangaroos for them to hunt. Fires through that forest would have been uneventful compared to the firestorms we've created by clear felling and leaving the land to regenerate as one mass.
Burning it may well slow down any chance it has of ever becoming what it once was again but we could help it by managing what we have to accelerate that natural process. Perhaps by selectively logging to allow the remaining trees to flourish while reintroducing flora that has been lost?
I don't think more of the same is the answer, it's more likely to make it even worse.
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