In Great Britain there were Riparian rights. Basically, the water they came onto my property and then moved to my neighbours could not be affected by me to my neighbour's detriment.
I belonged to the Anglers Co-operative Association who used their fighting fund to sue people who stuffed a water course that went off their property to someone elses property. Where it affected the fish or fishery of course.
Anyone know the Australian position.

Anyone know the Australian position
Jboyer,
Totally different mentality !

Individual, can you repeat this in English?

Individual. Yep, close living requires tolerance sometimes. Works both ways. I've lived both close and open space. My experience open space living just means boundaries to argue over are longer.
What is different is the size of the yard. Suburban homes I've owned there was no question about how I could utilise the space. The layout of lawns paths and gardens was mine alone. The only constraint was to not cause nuisance such as unnaturally directing runoff to a neighbors block. The first one did have six eucalypts, two we were able to remove but the remainder required permits to remove. We were however free to clean up under them and utilise the space. Subsequent owners have removed them, and sensibly so. They were growing too large to be that close to houses.
It's no different for rural properties. The space needs to be managed. It ought to be solely up to the owner how it's managed and mostly it is unless native vegetation exists there. Due to the area involved a perception has grown that rural land isn't someones yard, that it's nature space to be maintained according to common want. That wouldn't be so bad if it was an opt in thing and the common paid the owner to keep it that way, but that's not the case.
These fires, many originating from mismanaged public land, have highlighted some of the inequity of nature preservation laws imposed over private property.
I'll keep bringing it up because it's such an inequity. Made good sound bites for vote fishing politicians to virtue signal about 'preserving nature' and 'storing carbon' but it's all at the expense of people who struggle when the bills come in like everybody else.

There are some so-called farmers who do what they've allus done because that's what they've allus done! Yes, there are some very gifted folk on the land and exampled by visionaries like Peter Andrews, a hands-on Farmer who had two episodes of ABC's Australian story devoted to him. And a useful template for turn salt-laden salt pan back into highly productive pasture.

All hill country ought to have contour drains and dams at every turn. Those dams will need a built-in flood gate and need to be covered, to reduce losses due to evaporation.

Flatland down on the lower plains need their waterways protected via levees and weirs.

Their water stored in the adjacent landscape via cover tenches that can carry the water some kilometres from source. A bone dry country will need one good season of rain to completely transform it!

And I've seen examples of that very practise in operation and its amazing! Completely transformed and hugely productive! And, Look, mum, no pumps or water pumping fuel bills!

And willows planted atop the levees, dams or contour drains will bind them and assist in preventing erosion or damage by cloven hooves at critical junctures. And willows asperate recharge moisture and store carbon!

I grew up on a farm and as a mature adult, ran a contract cultivation company for a time, so most of what I argue has the backing of both hard-won, practical, hands-on experience complemented by years of study and research aided by what for most on the land as not unusual, an open mind! In conclusion let me reiterate, broad-scale irrigation is part of the solution and mitigates against climate change and localised heat waves.

Moreover, all plant life stores some carbon a in no-till farming ultimately sequesters endless season of it in the topsoil, where among other things, assists on improved moisture retention.

This advice not intended for farmers who know most of this stuff already, but empire-building bureaucrats who between them haven't a clue. Ditto career pollies
Alan B.

Flatland down on the lower plains need their waterways protected via levees and weirs.
Alan B,
I have long been saying that particularly around Brisbane which experiences periodic flooding, a parallel watercourse(s) should be created to take the flood height down. Such a waterway could double as a high end Canal development which would create substantial employment & even more substantial flood reduction/damage, literally creating a Delta !
The economic & environmental benefits would surprise many !