Hi. I answered a question that addressed this recently - although the question was framed around cities and settlement, my answer was mostly about agriculture as a response to other answers that have since been deleted. If you want any more info, feel free to ask. There are also a few more good answers in the FAQ concerning Indigenous life.

If you're new to reading about Indigenous Australia, I'd recommend the book Dark Emu by Bruce Pascoe, which takes a good swing at a lot of the bad history surrounding Indigenous Australia. If you want a serious historian's look at Indigenous Australian land usage, have a go at Bill Gammage's Biggest Estate on Earth. If you'd like a broad history of Indigenous Australia, the Rise and Fall of Ancient Australia by Geoffrey Blainey is a decent choice, although it is a little dry.