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Key terms: tree grow tree line pinus cold slopes soil arctic species lower mountain climate del islands desert wind aspect forest treeline roots lenga larix beech larch ecology exposed no trees limber too cold tundra pinyon alpine tree line exposure stunted typical tree species antarctica nothofagus environment peninsula sustain trees transition trees can grow tree growth great basin where trees arctic tree temperatures north america bristlecone pine Search external links cited by footnotes on Wikipedia page Tree line: |
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