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<p>Eastern white pine is the dominant softwood timber species harvested in the Northeast and has been at the forefront of the region’s wood-based economy since the earliest days of American history, often referred to as “the tree that built America.” While high-quality appearance grade eastern white pine fetches high prices, lower-quality construction grade lumber is much less valuable, making practitioners’ ability to reasonably estimate the recovery potential of both standing stems and cut sawlogs critical to the economic management of this species. Existing grading rules for eastern white pine stems and sawlogs emphasize the importance of diameter, insect and fungal damage, and minimum face requirements for estimating eastern white pine recovery. This case study describes the potential application of two additional, easily measured characteristics that can supplement the existing grading guidelines and provide practitioners with a more complete understanding of potential lumber grade recovery: the quantification of external black knot defects, and live crown length.</p>

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Counting Knots and Checking the Crown: Promising Metrics for Improved Understanding of Eastern White Pine’s Recovery Potential

  • 期刊论文

  • 发表日期：

    2026年2月9日

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  • Sara R. Dreibelbis,
  • René H. Germain,
  • William B. Smith

摘要

Eastern white pine is the dominant softwood timber species harvested in the Northeast and has been at the forefront of the region’s wood-based economy since the earliest days of American history, often referred to as “the tree that built America.” While high-quality appearance grade eastern white pine fetches high prices, lower-quality construction grade lumber is much less valuable, making practitioners’ ability to reasonably estimate the recovery potential of both standing stems and cut sawlogs critical to the economic management of this species. Existing grading rules for eastern white pine stems and sawlogs emphasize the importance of diameter, insect and fungal damage, and minimum face requirements for estimating eastern white pine recovery. This case study describes the potential application of two additional, easily measured characteristics that can supplement the existing grading guidelines and provide practitioners with a more complete understanding of potential lumber grade recovery: the quantification of external black knot defects, and live crown length.