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<p><a href="page.php?w=clear_cutting">clear cutting</a> or other kinds of damage. After an individual has been damaged or destroyed, root suckers are produced abundantly on the shallow <a href="page.php?w=lateral_roots">lateral roots</a>. Fast growth continues until the age of about 20 years, when crown competition increases. After that, growth speed decreases and culminates at about 30 years of age. Aspen can reach an age of 200 years.</p>

<p>It is a very hardy species and tolerates long, cold winters and short summers.</p>

<p>Aspen is resistant</p><p>
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