New South Wales, Australia
BioCarbon has tested its drone technology around the world and was recently in Dungog, in the New South Wales Hunter region.
This involved trialling their seed-spreading drone to rehabilitate land once used by coal mines.
This drone — while not as efficient as the firing drone — spreads seeds over a far wider area.
'Coal mines have an enormous amount of land that they need to restore, both on the active mine site, once they've recreated a land form, as well as their offset areas ... around the mines,' Dr Graham said.
'We've had quite a lot of interest in Australia and they see such a benefit in terms of saving cost, saving time, and being able to do a better job of restoring their ecosystems, and getting data to actually show what they've done.'
Dr Graham and her team. Credit: ABC News, Dave Maguire
In Dungog, it was tested to see how it performed on a steep hillside.
'Tractors find it very difficult over steep and undulating land,' Dr Graham said. 'It becomes very dangerous to get a tractor onto a steep hillside.'
'However, a drone doesn't matter, it's already in the air, it's already flying the shape of the land.'
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