Supporting your bush after fire Notes
4.8

Thinning dense regrowth

Draft outline

After a hot fire, eucalypt and wattle regrowth can come up at thousands of stems per hectare. It looks like a good result, and for a few years it is — but a wall of even-aged saplings shades out the ground layer, and the understorey diversity that survived the fire can be lost to the regrowth rather than to the fire itself.

The questions this section needs to answer: how to tell dense regrowth that will self-thin from regrowth that won’t; when thinning is justified and when it is meddling; how much to take and on what spacing; what to do with the material; and whether it is worth doing at the scale a landholder can manage.

Needed

This is the thinnest section in the guide and I don’t want to write it from general principles. The project ran small trials of understorey diversity protection through thinning — can you point me at the method, the sites and anything observed so far? Failing that, whose advice should this section carry?