Project Code:	WEYDV-02-030
Sponsor:	Weyerhaeuser Company Limited

Weyerhaeuser’s Edson and Drayton Valley operations have adopted a management strategy of underplanting aspen stands with white spruce seedlings. This project is a review and synthesis of information and data related to understory planting of white spruce in aspen stands. The research review focused on stand level growth and yield gains, biological and silvicultural efficacy and limitations, conceptual stand dynamics and development, growth and yield trajectories, and design of silvicultural and harvesting options.

The results of this project are summarized in the report “Underplanting Aspen Stands with White Spruce: Rationale, Strategies and Interpretations of Historical Trials in Alberta.”