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Climate change impacts and forest management

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Evidence of tree migration<br />

• Using FIA data, researchers<br />

found that 11 of 15 northern<br />

tree species are moving<br />

northwards, from 20 to 100<br />

km/ century. Woodall, 2009<br />

Fast paced: basswood, s maple, yel<br />

birch, n r oak, bl ash <strong>and</strong> bt aspen<br />

Slow paced: tam, r pine, w pine <strong>and</strong><br />

nw cedar,<br />

Static: balsam fir, bl spruce, w pine,<br />

q aspen BAM <strong>and</strong> p birch<br />

Based on the centers of tree biomass<br />

(red) <strong>and</strong> seedling abundance (blue) for<br />

each tree species.<br />

Tree biomass<br />

Seedling counts<br />

Note: The estimated speed of tree<br />

migration in post-glacial times was<br />

50 km/ century.<br />

Based on comparison of where trees<br />

<strong>and</strong> seedlings at each latitude class.

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