Bush regeneration after fires
HTML-код
- Опубликовано: 10 июл 2024
- This episode was first broadcast in 2006
In late January 2006 bushfires ravaged Victoria's Brisbane Ranges National Park, 80 kilometres south-west of Melbourne. It is not even 12 months since the bushfires and remarkably there are signs of regeneration - the trees are shooting, and the native wildflowers and orchids are springing to life in the burnt-out bushland.
Peter Box is a ranger with Parks Victoria and has witnessed the cycle of growth, destruction and regeneration of the Brisbane Ranges park for nearly two decades.
He says the fire ferocity was severe. "The fire burnt out roughly 7,000 hectares in a day - trees were burnt off at the ground, so it just took out everything. I've been in the area for 18-odd years, and hadn't seen anything like it before.
"The bush recovered quickly and in the picnic grounds we're noticing young eucalyptus trees starting to shoot in damp areas after a little rain.
"Some of the gum trees have epicormic growth, that's what you see up the sides of them. That is how they keep surviving after the fire.
"The ground covers came back relatively quickly. Once we had rain, the sedges, and bracken ferns started to shoot and over spring the wildflowers and orchids have come up."
One of the most remarkable things about regeneration after fire is the emerging forest of grass trees, known as Xanthorrhoeas. I love them because of their grassy skirts and wonderful architectural spikes of hundreds of thousands of individual flowers. It's a rare sight but a unique symbol of the Australian bush - a true gallery of grass trees.
After the fires only black stumps were left. The growth has happened since. Grass trees or Xanthorrhoea australis only flower after a fire.
According to Peter, the Aborigines used the flower spikes and dipped them in water to make a sweet drink or even melted down the resin to use as a type of glue to put heads on their spears.
Unfortunately there is a huge problem of grass trees dying back. It is caused by a root rot, a fungus called phytophthora, and it is the cinnamon fungus that causes the leaves to yellow and then the plant sinks away and collapses. The surrounding gum trees can get it too - it is fairly common in the Brisbane Ranges and other parts of Australia. It is spread by infected soil and infected plants.
To overcome this, an implement called a cinnamon fungus hygiene station or more affectionately "an Anakie scrubber" is used. It cleans and removes all organic material from your boot and then a spring-loaded pressure plate immerses the soles of the boot into a chemical. A little bit on a boot will completely kill the fungus. Peter says that bush walkers are encouraged to stay on the tracks where possible.
"The wildflowers such as lomandras and milkmaids have come back well and there are an amazing number of native bees hovering around the flowers.
"It's a good sign and means that the flowers will be cross-pollinated and continue next year," he says.
Some of Peter's favourites include a chocolate lily with its beautiful little flower. There has also been a good show of orchids this year including red beak orchids Lyperanthus nigricans that only flower after a fire. They normally put up a leaf but will not flower unless fire affected.
The immediate impact of a bush fire can be devastating on both the environment and people who are affected by the damage, but long term it can help replenish and revitalise the Australian bush.
Peter believes the Australian bush has evolved to use or accommodate fire as a means of renewal. The burnt canopy means there is sunlight coming in and more heat on the ground, so it's all good for the plants.
Watch Gardening Australia on ABC iview: iview.abc.net.au/programs/gard...
SUBSCRIBE: ab.co/GardeningRUclips
About Gardening Australia:
Gardening Australia is an ABC TV program providing gardening know-how and inspiration. Presented by Australia's leading horticultural experts, Gardening Australia is a valuable resource to all gardeners through the television program, the magazine, books, DVDs and extensive online content.
Connect with other Gardening Australia fans:
Like Gardening Australia on Facebook: / gardeningaustralia
Follow Gardening Australia on Instagram: / gardeningaustralia
Visit the Gardening Australia website: www.abc.net.au/gardening
This is an official Australian Broadcasting Corporation RUclips channel.
********
Contributions may be removed if they violate ABC's Online Conditions of Use www.abc.net.au/conditions.htm (Section 3). 
Развлечения
We should respect nature because without it, we are no-more... Instead, unfortunately we are destroying it, but beware of the fury of mother nature....
Ok so how are we destroying it? The over 20 arsonists that we’re charged for lighting the nsw fires?
Yes! Heal my Australian friends. Heal!
Nature always found a way to rebirth
Moin! guter Beitrag! Gut gemacht... :D
Hast du eigentlich evtl das Wasserstoffwasser von einem Aktivwasser Generator jemals getestet?
Dieses Getränk ist echt beeindruckend! :)
Wie bitte? Hmm das kann man nur selbst herausfinden?
&
Psst: Du findest es im Aquacentrum neben vielen anderen Aspekten .. 👍
It wud've b interesting n informative 2know wat was the parks fire management strategies were, n also 2hav compared it 2an area closeby, ie cared 4 n managed by cultural/cool burnings.
Did you write this comment on a Nokia 3315?
Sadly it is, part of living on struggle st
Fire on fire off is what managers the Australian landscape it was so for millions of years now our national parks are a fire hazard and a impenetrable thick wildlife trap full of weeds
kangaroo tails🦘 seen a lot along the hwy 8 SA TO VIC Cinnamon fungus 🤷♂️👀💭 Bushfire 🔥we got this
now the snakes are less right now
WHITE AUSTRALIANS SHOULD RESPECT THE ABORIGINALS MORE AND LEARN FROM THEIR THOUSANDS OF YEARS OF HISTORY AND CULTURE,
Aboriginies? Really? Totally unacceptable. First Nations people, Aboriginal people, Indigenous Australians.
PC folks could be the problem
Pretty sure when this video came out it was still an acceptable reference which was some time in 2006/2007
Maybe to someone not from Australia, but them Aussies like shorting things
@@Parlepape I am from Australia. Its not acceptable.