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mother_sheep
Mar 10, 2003, 5:18 PM
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What are the factors that determine the altitude of treeline? The reason I ask is because here in Colorado, treeline is right around 11.5-11.7k'. In the NE, treeline is obviously a lot lower since there isn't anything that high out there. Does it have something to do with the temperature, the soil and the type of trees that grow in that area?
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petsfed
Mar 10, 2003, 5:43 PM
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It depends partially on the local weather, as well as distance from the arctic circle. The farther north you are, the lower the tree line will be. This is because well, its colder farther north. Remember the old 1000 feet = 5 degrees idea and this will make a lot of sense.
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polarwid
Mar 11, 2003, 12:05 AM
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Treeline in ALASKA is between 3000 and 4000 feet... :lol:
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apollodorus
Mar 11, 2003, 12:09 AM
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In the Sierras, near Mt. Whitney and Tuolumne Meadows, the treeline is about 9000-10000 feet. On south facing slopes, the treeline is higher because they get more sun and are thus warmer.
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micahmcguire
Mar 12, 2003, 7:18 PM
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yeah, I commonly see it as low as 2500 here in the southern chugach. Up in the north talkeetnas I see it lower than 2000 often enough. Much of the Alaska range and Brooks range just dont have trees at any alititude
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alpinerocket
Mar 12, 2003, 7:34 PM
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Just like a midget at a urinal, I am always on my toes.
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petsfed
Mar 12, 2003, 7:34 PM
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In colorado, it varies from about 9500 in the Never Summers, clear up to about 12000 in the San Jauns. Its as low as 8500 or so in the Wind Rivers in wyoming. About 8000 even in southern montana.
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rockprodigy
Mar 12, 2003, 10:28 PM
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It also depends on the elevation of the surrounding terrain, and wind.
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xkyczar
Mar 12, 2003, 10:55 PM
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Most of what I've read concludes something like:
"The most crucial factor in determining treeline elevation is the mean temperature of the warmest month of the year (July in the northern hemisphere)."
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calpolyclimber
Mar 12, 2003, 11:08 PM
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It also depends on the variety of tree that is native to the area.
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graniteboy
Mar 13, 2003, 5:01 AM
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Well, ya, Up in British Columbia, eh, they CLEAR CUT right down to the SEA!!!!!! So treeline there is Abooot 1 Metre. EH????? :lol: :lol: :lol:
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