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-   -   Pine Trees in Northern Canada (http://www.physicsforums.com/showthread.php?t=651891)

enosis_ Nov13-12 11:46 AM

Pine Trees in Northern Canada
 
My neighbor recently visited Northern Canada on a hunting trip. He took a great many photos. Upon review, I noticed they have very tall and skinny pine trees with very full tops. He described the soil as very thin, perhaps less than 12", and solid rock below.

Accordingly, I'm wondering if anyone is knowledgeable about the characteristics of these trees.

It appears they are skinny to resist wind resistance. However, given their height and the reported soil thickness, I would assume the root systems would resemble an inter-woven quilt through the soil and above the rock?

Any clarification would be greatly appreciated.

Andre Nov13-12 12:28 PM

Re: Pine Trees in Northern Canada
 
You get tall and skinny pine trees with full tops anywhere in a dense forest.

https://dl.dropbox.com/u/22026080/pi...200-id-201.jpg

Which gets more obvious when you start cutting them down.

enosis_ Nov13-12 12:34 PM

Re: Pine Trees in Northern Canada
 
Understood, however, the trees in the photos I saw didn't look like these - the branches were MUCH skinnier.

Andre Nov13-12 12:48 PM

Re: Pine Trees in Northern Canada
 
I don't see thick branches there. But anyway there are many pine species with different looks. The one in the pic seems a Pinus sylvestris to me, which is not that abundant in Canada. Notice the complete different shape, when they get more room to grow.

Typical arctic adaptation is dwarf growth and occasionally dead tops when the snow protected the lower parts from freezing to death. Unfortunately I cant' find a good picture to illustrate that.

turbo Nov13-12 01:14 PM

Re: Pine Trees in Northern Canada
 
Borrow or rent the Planet Earth video series. You'll see that what we call the Boreal forest requires special adaptations if trees are to survive there.

http://en.wikipedia.org/wiki/Taiga

enosis_ Nov13-12 01:21 PM

Re: Pine Trees in Northern Canada
 
Quote:

Quote by turbo (Post 4157786)
Borrow or rent the Planet Earth video series. You'll see that what we call the Boreal forest requires special adaptations if trees are to survive there.

http://en.wikipedia.org/wiki/Taiga

From your link - these look more like the ones I saw.

http://upload.wikimedia.org/wikipedi..._in_Canada.jpg

enosis_ Nov13-12 01:25 PM

Re: Pine Trees in Northern Canada
 
How do I make the picture appear?

enosis_ Nov13-12 01:27 PM

Re: Pine Trees in Northern Canada
 
Couldn't delete-just edit?

enosis_ Nov13-12 01:27 PM

Re: Pine Trees in Northern Canada
 
got it

Andre Nov13-12 01:30 PM

Re: Pine Trees in Northern Canada
 
Quote:

Quote by enosis_ (Post 4157799)
How do I make the picture appear?

here is your pic in a decent size. Sometimes you have to download it, resize it with some program like paint, not to exceed 800 pixels in width and then re-up it somewhere like in www.tinypic.com and then link to it with [img] tags

https://dl.dropbox.com/u/22026080/Ta..._in_Canada.jpg

If you can delete the big picture, the thread stays manageable.

Also note that the trees we're looking at are maybe spruce, like this, not pines.

enosis_ Nov13-12 01:39 PM

Re: Pine Trees in Northern Canada
 
Thank you Andre! I saved the tinypic site for future use.

enosis_ Nov16-12 11:02 PM

Re: Pine Trees in Northern Canada
 
Yes Andre, I see the similarity to the Spruce. Either way, would the root systems on this type of tree typically grow in a wide pattern and interwoven in the shallow soil?

Andre Nov17-12 08:28 AM

Re: Pine Trees in Northern Canada
 
That's what you would expect, Here is some more information.

enosis_ Nov17-12 10:46 AM

Re: Pine Trees in Northern Canada
 
Quote:

Quote by Andre (Post 4163051)
That's what you would expect, Here is some more information.

Your link is quite helpful Andre - thank you. I do find it surprising the trees grow best in well-drained soils. I observed growths in a very moist flood plain that were comparable to growths on a well drained hillside?

davenn Nov19-12 05:25 PM

Re: Pine Trees in Northern Canada
 
Also note that in forrestry plantations, trees often get trimmed of their lower branches quickly as they grow.
This encourages the tree to grow straighter and also to have fewer and smaller knots along the length of the trunk
Both these features are required for good lumber production

Dave


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