In Antarctica due to climate change dried up plants.
Australian scientists found the first evidence of the impact of climate change on the East Antarctic vegetation.
A study conducted by researchers from the University of Wollongong in Australia showed that the vegetation in Eastern Antarctica is changing rapidly in response to the drier climate.
East Antarctica, the researchers said, became more cold, more windy and dry due to the cumulative impact of climate change and the depletion of the ozone layer. Since 2000, the researchers followed the mosses near the Australian Casey station. These mosses are considered to be the largest plant ecosystem of the region and was named “dantri Antarctica” in honor of the forest Daintree in Australia.
Professor Sharon Robinson of the Center for sustainable ecosystem-based solutions in the School of biological Sciences said, when researchers began to follow the moss in 2000, they thought that any changes that they see will be very gradual.
“We were very surprised to see how quickly they change. After the pilot study in 2000, we began monitoring in 2003. When we returned in 2008, all these green mosses became dark red, which indicates serious stress. It was a dramatic change,” she said.
In search of the causes of stress, the researchers found evidence that the climate has become drier. One indication of this was the change of species composition of mosses.
When the study began, in 2000, the predominant view was moss Schistidium antarctici, which can long time endure immersion in water (in summer thickets at Casey station is often flooded), but by 2013 there were two new species, Ceratodon purpureus and Bryum pseudotriquetrum, which prefer dry conditions and less resistant to flooding.
Data from stations meteorological stations in East Antarctica show that over the same period, the region became more cold and windy.
“Cool in summer, so there is less melt water – where it never rains, so all the water must come from melting snow and ice. All these different data indicate that the region has become more dry, and this is due to the change of the winds. The ozone hole and climate change pulled Western winds closer to Antarctica, which increased the wind speed. This is the first evidence that the region of East Antarctica affected by climate change and the depletion of the ozone layer,” said Professor Robinson.
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