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Silviculture Treatments for Ecosystem Management in the Sayward (STEMS) is a cooperative, large-scale, multi-disciplinary experiment that compares forest productivity, economics, and public perception of seven silvicultural systems or extended rotation treatments, replicated at three sites in the Sayward Forest on Vancouver Island.

The overall goals of the STEMS experiment are, within mature second-growth Douglas-fir stands:

  1. To create replicated examples of alternative harvest practices and silvicultural regimes that can be used as a demonstration area by foresters and planners in ecosystem management;
  2. To provide quantitative information for evaluation of feasibility and costs of alternative regimes and of their long-term effects on production of timber volumes and values and other non-timber values; and
  3. To evaluate the effectiveness of contrasting silvicultural systems in reducing environmental and visual impacts of forestry operations, while supplying high timber outputs over time.

The results of this experiment will be used to improve forest management and policies because results can be directly interpreted operationally due to the large-scale, replicated experimental design. The information will be especially relevant for ecosystem management of forests with multiple objectives.

The following partners and collaborators are gratefully acknowledged:

Last Modified: 2008 May 9.