Causes of Alpine Timberline: A Review of the Hypotheses

  title={Causes of Alpine Timberline: A Review of the Hypotheses},
  author={P. Wardle},
  • P. Wardle
  • Published 1993
  • Environmental Science
  • Timberline, or the low-temperature limits of forest and tree growth, is one of the most fundamental ecological boundaries. Below timberline, foliage and reproductive structures are successfully produced at the height of tree canopies; above timberline, plants grow only in favoured environments close to the ground. Timberlines are also relatively well-defined, even where altitudinal environmental gradients are gradual. Most other sharp boundaries in nature reflect environmental discontinuities… CONTINUE READING
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