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Mountain Journal

Environment, news, culture from the Australian Alps

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fire

Documenting loss of Snow Gums in the VIC Alps

The recent The IPCC WGII Sixth Assessment Report included details about the threat posed by climate change to Snow Gum woodlands (story here). Mountain Journal has been recording the local loss of Snow Gum woodlands across the Australian high country for several years now.

In a welcome sign, the last two summers have been mild and wet, and this has led to reseeding in some previously burnt areas of Snow Gums after years of no growth. However almost every trip to the higher mountains reveals new areas that have been burnt to the point of ecological collapse.

Continue reading “Documenting loss of Snow Gums in the VIC Alps”

Climate change driven fire threatens Tasmania’s forests

While the summer of 2021/22 has been a mild fire season in the east of the country, there have been a small number of significant fires in lutruwita/ Tasmania that have threatened World Heritage Areas (including one that threatened an incredibly significant Huon pine forest). This is because the west of that state has been experiencing a prolonged and extreme drought, with some areas receiving their lowest rainfall on record.

As reported recently in The Conversation, “this drought fits an observed drying trend across the state, which will worsen due to climate change. This is very bad news for the ancient wilderness in the state’s World Heritage Area, where the lineage of some tree species stretch back 150 million years to the supercontinent Gondwana’.

The drying trend has seen a steady increase in bushfires ignited by lightning, imperilling the survival of Tasmania’s Gondwanan legacy, and raising profound fire management challenges.’ Continue reading “Climate change driven fire threatens Tasmania’s forests”

Guided walk to the Little Dargo River

The fires of 2019/20 burnt huge areas of north eastern Victoria. The remaining unburnt forests are more important than ever. One of these areas lies in the headwaters of the Little Dargo River, just south of Mt Hotham. It is a pristine area, without roads, and containing mature forest, much of it dominated by Alpine Ash. It is an area of state forest that lies right next to the Alpine National Park.

The state government logging agency, VicForests, intends to log a total of 11 “coupes”, or sections, of mature forest in the upper Little Dargo River, probably this spring. These coupes are located in a series of clusters, where separate sections of bush will be harvested, creating a large zone of cleared land over time. Extensive roading networks will be needed to access the coupes.

One coupe has already been logged. The remaining coupes have not yet been scheduled for harvesting. There is still time to stop this ecological disaster – if we act now.

Join us for a walk to experience the beauty that is the Little Dargo.

Sunday April 24, 10 am – 3pm.

Continue reading “Guided walk to the Little Dargo River”

IPCC report points to collapse of Alpine Ash and Snowgum woodland

The IPCC WGII Sixth Assessment Report has just been released (and is available here).

The take home message is:

Further climate change is inevitable, with the rate and magnitude of impact largely dependent on the emission reduction pathways that we choose. Time is running out if we want to act.

The final sentence of new IPCC report is: “The scientific evidence is unequivocal: climate change is a threat to human well-being and the health of the planet. Any further delay in concerted global action will miss a brief and rapidly closing window to secure a liveable future.”

The Chapter on Australasia (available here) has a considerable amount of detail on likely impacts on mountain areas of south eastern Australia and lutruwita/ Tasmania. Some of these are summarised below. It looks at both observed impacts and predicted future impacts (applying a level of certainty to each of these).

Continue reading “IPCC report points to collapse of Alpine Ash and Snowgum woodland”

Huon Pine reserve threatened by fire

There is currently a bushfire burning at Olegas Bluff within the Franklin-Gordon Wild Rivers National Park in south western lutruwita/ Tasmania.

The Parks and Wildlife Service is undertaking air-based suppression works in the area. The fire is not yet contained and the cause of the fire is yet to be determined.

The most disturbing aspect of this fire is that it threatens the Truchanas Pine Forest, which contains globally significant Huon Pine trees.

Continue reading “Huon Pine reserve threatened by fire”

‘Mature-aged native forest may never return to parts of Namadgi’

In January and February 2020, the Orroral Valley Fire burnt more than 80% of Namadgi National Park in the ACT. Since then, monitoring and recovery efforts have sought to protect damaged environments and aid the recovery of the park.

A report released in 2021 showed that some areas and forest types were recovering well (for instance, many Candle Bark forests and Snow Gums) however the news was grimmer for other vegetation types like Alpine Ash.

Two years on, it is clear that full recovery will take many years and sections of the park will never be the same. Mature-aged native forest may never return to parts of Namadgi National Park because climate change is impacting regeneration.

Continue reading “‘Mature-aged native forest may never return to parts of Namadgi’”

Fires in south west Tasmania

A number of small fires are burning in World Heritage Areas in lutruwita/ Tasmania. At this point details on each fire is fairly scare. This post will be updated as extra details arrive. Initial post: JAN 31, 2022.

Continue reading “Fires in south west Tasmania”

Firefighters demand climate action

Bushfires are becoming more frequent and the bushfire season is coming earlier and lasting longer because of climate change.

These longer fire seasons in Australia are not “normal”. They are being driven by human induced global heating (climate change). Unless we act now to reduce our emissions in line with what climate science suggests, we will become locked in to ever worsening fire seasons. We know that climate driven fires pose an extreme threat to mountain environments like Alpine Ash and Snow Gums.

The Australian Firefighters Climate Alliance (AFCA) has launched a new campaign, asking firefighters to post an image of themselves on a fireground, and demanding the Austrtalian government act on climate change.

Continue reading “Firefighters demand climate action”

Time is running out for mountain woodlands

It is worth going back to a report from 2020 that shows the impacts of fire in Victoria. Most of the area burned in the summer of 2019/20 is in mixed-species eucalypt forests, which are common throughout eastern Victoria, and which can recover well from fire.

But the fires also burnt forest types of more limited distribution including banksia woodlands, warm temperate rainforests, and mountain communities including alpine ash forests and snow gum woodlands.

Continue reading “Time is running out for mountain woodlands”

Alpine and Mountain Ash face potential declines in a warmer and drier future.

We know that the Alpine Ash forests are struggling to survive in the face of climate change driven fire regimes that are bringing fire into these forests more frequently.

The scale of this threat is so extreme that the Victorian government has a program specifically responsible for reseeding forests that are on the verge of ecosystem collapse.

New research underscores, yet again, that the mountain forests face grave threats from climate change and that this could lead to the transformation of these forests.

Continue reading “Alpine and Mountain Ash face potential declines in a warmer and drier future.”

Fires in Tasmanian World Heritage Areas

Back in 2019, Tasmania/ lutruwita was badly impacted by wildfires (check here for a diary of those fires). With much of south eastern Australia experiencing a La Nina mild summer, the forecast is for a ‘mild’ season across most of the south east.

But following lightning storms over the weekend of December 18 and 19, 2021, a number of fires have started in remote World Heritage Areas in Tasmania/ lutruwita. It has been noted that since the year 2000, there has been an increase in the number of lightning-caused fires and an increase in the average size of the fires in Tasmania, “resulting in a marked increase in the area burnt”.

This page will track significant fires on public lands in Tasmania during the summer of 2021/22.

Continue reading “Fires in Tasmanian World Heritage Areas”

Snow Gum citizen science field trip – January 2022

Snow Gums face a massive threat from the spread of dieback which is caused by a native beetle – and also super charged by climate change, and localised collapse of snow gum woodlands due to more frequent fires.

Last winter Friends of the Earth (FoE) published An Icon at Risk, which considers the many threats to the mountains of north east Victoria (the report is available here).

FoE will be hosting a field trip to map impacts of fire over four days in January 2022 in the Mt Hotham region.

Continue reading “Snow Gum citizen science field trip – January 2022”

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