Fire has had a significant role in shaping mountain ecosystems in Australia for millions of years. But climate change is making our fire seasons more extreme and longer in duration.
What this means is that we are seeing more and more areas being burnt more frequently. In the case of the Victorian mountains, I have seen some areas of alpine ash and snow gums that have been burnt three times in a decade. Each year it feels like the world is getting poorer as these forests are impacted time and again, potentially beyond their ability to recover.
It’s the same story everywhere. Who can forget the devastating fires in Tasmania over the summer of 2016?
As we hear warnings that this summers fire season may be a bad one, massive fires are raging across much of western North America, causing many people to flee from their homes and communities. Vast areas of land are being burnt. For instance one fire in California swept through an area called Nelder Grove, which is home to 2,700-year-old giant sequoia trees. Human assets like historical buildings are also being threatened or destroyed.
There are fires across much of the rest of the northern hemisphere too. Check the incredible maps in this article entitled ‘This is how much of the world is currently on fire’.
Recent research here in Australia demonstrates that fire impacts are growing on snow gum forests and will continue to do so in future. Mountain Journal has reported on a number of these reports in the past. A new report from researchers at Melbourne University has a shocking message: ‘over 90% of the Victorian distribution of snow gums has been burned at least once since 2003. What is of greater concern though, is that each of the large fires of the last 15 years has overlapped to some extent, leaving thousands of hectares of snow gums burned by wildfire twice, and sometimes three times’.
Continue reading “More frequent fires threaten snow gums”