Analysis of information sources in references of the Wikipedia article "Drunken trees" in English language version.
Melting permafrost is the most common cause of the drunken forest.… Landslides and earthquakes also can create drunken forests,…
Permafrost is soil or rock that remains below 0°C for at least two consecutive years.… Spruce trees leaning in different directions (known as "drunken forest") can be a clue to frost heaving or melting of permafrost beneath.
…caused what the locals call "drunken forests," the trees tilting and leaning…
Boreholes in Svalbard, Norway, for example, indicate that ground temperatures rose 0.4C over the past decade, four times faster than they did in the previous century, according to Charles Harris, a geologist at the University of Cardiff, UK, and a coordinator of Permafrost and Climate in Europe (Pace), which is contributing data to the GTNP.
The warming is believed to be due to a combination of man-made climate change, a cyclical atmospheric phenomenon known as the Arctic oscillation and feedbacks caused by melting ice
Ninety-two cross-sectional discs were extracted from tilted trees growing in hummocky and non-hummocky permafrost terrain near Mayo, Yukon Territory, in order to investigate the development of compression wood between 1900 and 2000.
CCSM3 projections show dramatic permafrost degradation by 2100 under both high and low greenhouse gas emission scenarios.
Romanovsky pointed out a long trench running into the woods. The trench, he explained, had been formed when a wedge of underground ice had melted. The spruce trees that had been growing next to it, or perhaps on top of it, were now listing at odd angles, as if in a gale. Locally, such trees are called "drunken."
Such trees develop in association with frost heaving and subsequent palsa development, resulting in "drunken forests"
Trees growing on hummocky permafrost terrain are subject to periodic tilting, and this tilting is recorded as compression wood.
As permafrost is in disequilibrium with climate, much of the permafrost that remains is in a relict state.… As the permafrost surface subsides, trees die and are tilted resulting in the development of "drunken forests" and the formation of compression wood…
At sites generally underlain by ice-rich permafrost, forest ecosystems can be completely destroyed.… Tipped trees at the edge of thermokarst can be used to age the time of thawing of the underlying permafrost…
Ninety-two cross-sectional discs were extracted from tilted trees growing in hummocky and non-hummocky permafrost terrain near Mayo, Yukon Territory, in order to investigate the development of compression wood between 1900 and 2000.
In the midboreal zone, internal lawns are present in bogs and in fens. These internal lawns do not presently contain permafrost but did in the recent past, representing degradation of permafrost since the Little Ice Age.
Evidence indicates this permafrost degradation began in the mid-1700s and is associated with periods of relatively warm climate during the mid-late 1700s and 1900s.
Rapid permafrost melting over the last 50 years caused the concurrent formation of thermokarst ponds and fen-bog vegetation with rapid peat accumulation through natural successional processes of terrestrialization.
Permafrost thaw in central Canadian peatlands has accelerated significantly since 1950,… This magnitude of warming will begin to eliminate most of the present range of sporadic and discontinuous permafrost in central Canada by 2100.
CCSM3 projections show dramatic permafrost degradation by 2100 under both high and low greenhouse gas emission scenarios.
Some drunken trees recover by using gravitropism to re-orient themselves upwards; others simply topple sideways and die.
Trees on the edge of a patch of degrading permafrost … will all exhibit reaction wood starting as soon as the event happens or in the following spring, if the tilting happened in the winter.
In the midboreal zone, internal lawns are present in bogs and in fens. These internal lawns do not presently contain permafrost but did in the recent past, representing degradation of permafrost since the Little Ice Age.
Rapid permafrost melting over the last 50 years caused the concurrent formation of thermokarst ponds and fen-bog vegetation with rapid peat accumulation through natural successional processes of terrestrialization.
Permafrost thaw in central Canadian peatlands has accelerated significantly since 1950,… This magnitude of warming will begin to eliminate most of the present range of sporadic and discontinuous permafrost in central Canada by 2100.
CCSM3 projections show dramatic permafrost degradation by 2100 under both high and low greenhouse gas emission scenarios.
Photo showing tilted trees in the "drunken forest". The trees grow atop the Slumgullion earthflow, which is four miles long and 2000 feet wide, near Lake City, CO.
Trees growing on hummocky permafrost terrain are subject to periodic tilting, and this tilting is recorded as compression wood.
At sites generally underlain by ice-rich permafrost, forest ecosystems can be completely destroyed.… Tipped trees at the edge of thermokarst can be used to age the time of thawing of the underlying permafrost…
Permafrost that has not melted provides a solid foundation that holds trees upright. When permafrost melts, as it has here, the layer of loose soil deepens and trees lose their foundations, tipping over at odd angles.
Western Siberia has warmed faster than almost anywhere else on the planet, with an increase in average temperatures of some 3°C in the last 40 years.… Similar warming has also been taking place in Alaska:…
As permafrost is in disequilibrium with climate, much of the permafrost that remains is in a relict state.… As the permafrost surface subsides, trees die and are tilted resulting in the development of "drunken forests" and the formation of compression wood…
…permafrost … is in disequilibrium with the present climate and has been slowly disappearing in response to climate warming since the Little Ice Age.… Much of the area of discontinuous permafrost is already in disequilibrium with the current climate and is still responding to changes of the last century.
Active, forested rock glaciers may also exhibit this phenomenon due to differential movements.
Here and there, roadside utility poles destabilized by the melting tilt at crazy angles. So do trees, creating a phenomenon known as drunken forest.
Ninety-two cross-sectional discs were extracted from tilted trees growing in hummocky and non-hummocky permafrost terrain near Mayo, Yukon Territory, in order to investigate the development of compression wood between 1900 and 2000.
When the centuries-long cold spell called the Little Ice Age ended about 150 years ago, glaciers and permafrost reached their maximum extent of the past few millennia.
In the midboreal zone, internal lawns are present in bogs and in fens. These internal lawns do not presently contain permafrost but did in the recent past, representing degradation of permafrost since the Little Ice Age.
Evidence indicates this permafrost degradation began in the mid-1700s and is associated with periods of relatively warm climate during the mid-late 1700s and 1900s.
Permafrost thaw in central Canadian peatlands has accelerated significantly since 1950,… This magnitude of warming will begin to eliminate most of the present range of sporadic and discontinuous permafrost in central Canada by 2100.
But rising atmospheric temperatures are accelerating rates of permafrost thaw in northern regions, says MSU researcher Merritt Turetsky
Such trees develop in association with frost heaving and subsequent palsa development, resulting in "drunken forests"
Romanovsky pointed out a long trench running into the woods. The trench, he explained, had been formed when a wedge of underground ice had melted. The spruce trees that had been growing next to it, or perhaps on top of it, were now listing at odd angles, as if in a gale. Locally, such trees are called "drunken."
Permafrost that has not melted provides a solid foundation that holds trees upright. When permafrost melts, as it has here, the layer of loose soil deepens and trees lose their foundations, tipping over at odd angles.
Such trees develop in association with frost heaving and subsequent palsa development, resulting in "drunken forests"
Photo showing tilted trees in the "drunken forest". The trees grow atop the Slumgullion earthflow, which is four miles long and 2000 feet wide, near Lake City, CO.
Active, forested rock glaciers may also exhibit this phenomenon due to differential movements.
Melting permafrost is the most common cause of the drunken forest.… Landslides and earthquakes also can create drunken forests,…
Permafrost is soil or rock that remains below 0°C for at least two consecutive years.… Spruce trees leaning in different directions (known as "drunken forest") can be a clue to frost heaving or melting of permafrost beneath.
As permafrost is in disequilibrium with climate, much of the permafrost that remains is in a relict state.… As the permafrost surface subsides, trees die and are tilted resulting in the development of "drunken forests" and the formation of compression wood…
Some drunken trees recover by using gravitropism to re-orient themselves upwards; others simply topple sideways and die.
Trees on the edge of a patch of degrading permafrost … will all exhibit reaction wood starting as soon as the event happens or in the following spring, if the tilting happened in the winter.
When the centuries-long cold spell called the Little Ice Age ended about 150 years ago, glaciers and permafrost reached their maximum extent of the past few millennia.
…permafrost … is in disequilibrium with the present climate and has been slowly disappearing in response to climate warming since the Little Ice Age.… Much of the area of discontinuous permafrost is already in disequilibrium with the current climate and is still responding to changes of the last century.
CCSM3 projections show dramatic permafrost degradation by 2100 under both high and low greenhouse gas emission scenarios.
