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Height models for Red Alder (Alnus rubra Bong.) in British Columbia

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Abstract

Interest in managing red alder (Alnus rubra Bong.) for pulp, lumber and improving site quality is increasing. Proper management of this species requires growth and yield information. Height-age and years to breast height models developed for western Washington and northwestern Oregon are being used in British Columbia. It is unknown whether these models are suitable for British Columbia's conditions. Therefore, new models were developed from thirty stem analysis plots established in red alder stands in coastal areas of British Columbia. The sample trees in the plots were intensively sampled by taking sections out of the tree stems and counting the annual growth rings on each section. This led to height-age data for each tree, which was then averaged by age to get plot height-age data. Years to breast height and height-age models were developed from these data and are summarized in this paper. The height-age model was anamorphic, which contrasts with the model previously used in British Columbia. The new years to breast height model provides more resolution than the previous model.

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Authors and Affiliations

  1. British Columbia Ministry of Forests, Research Branch, Stn. Prov. Govt., Victoria, British Columbia, Canada, V8W 9C2

    Gordon D. Nigh

  2. Ministry of Forests, Vancouver Forest Region, Nanaimo, British Columbia, Canada, V9T 6E9

    Paul J. Courtin

Authors
  1. Gordon D. Nigh
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  2. Paul J. Courtin
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Nigh, G.D., Courtin, P.J. Height models for Red Alder (Alnus rubra Bong.) in British Columbia . New Forests 16, 59–70 (1998). https://doi.org/10.1023/A:1006561502635

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  • DOI: https://doi.org/10.1023/A:1006561502635

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