Itoero

When will trees be back in Antarctica?

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Posted (edited)

With the current rate of global warming, how long will it take for trees to be able to grow back in Antarctica?

Edited by Itoero
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Very soon if it continues like this ... The temperature in our place has changed a lot in recent times .

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On 8/11/2017 at 9:43 AM, Itoero said:

With the current rate of global warming, how long will it take for trees to be able to grow back in Antarctica?

It may take longer than you think.  It isn't just the climate that keeps the trees from growing, although that is the biggest contributor.  The amount of sunlight is also a factor.  The tree line stops just north of the Arctic Circle ( 66°33′46.8″ N) and just south of the Antarctic Circle ( 66°33′46.8″ S).  The trees get smaller and more spaced apart the closer one gets to the poles.  Clearly climate is a major factor, but the lack of sunlight for as long as 90 days at a time is also a factor.  The northern forests of Russia, Alaska, Canada, Norway, and Sweden all have tree lines that stop just a few miles north of the Arctic Circle, even though there is still arable land further north.  The north-slope of Alaska is completely treeless, even though the southern interior of Alaska is far colder during the winter.  Lichen and other tundra plants seem to do better under such conditions than trees.

We have to remember that when the continent of Antarctica was lush with forests it was not located at the South Pole, but much further north in a much warmer (and better lit) climate.  Eventually the Antarctic continent will move away from the South Pole, but we are talking tens of millions of years from now.

 

 

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On the Mackenzie river delta, near Inuvik (200km north of artic circle), you find decent-looking trees. The climate decides how big the trees can get. Kolari (in Finland) lies maybe 150km North of arctic circle. This is a picture of a lake in Kolari.Lake Kesänki at Ylläs

Because of global warming climates will get warmer and will change.

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2 hours ago, Itoero said:

Because of global warming climates will get warmer and will change.

 

That maybe true, but how do the seeds get there?

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1 hour ago, dimreepr said:

That maybe true, but how do the seeds get there?

Perhaps via wind...long distance dispersal.(LDD)

Or maybe we can help by planting trees.(with drones)

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18 hours ago, dimreepr said:

That maybe true, but how do the seeds get there?

As Itoreo has said, possibly carried on the wind. Alternatively caught on the feathers of birds, or dispersed in their droppings. Branches, or even complete trees, bearing seeds carried on ocean currents and blown by winds are another possibility.

If you think about it, even the smallest of islands always has at least one tree.

desert-island.gif

Edited by Area54
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