Forest Investment Account

Abstract of FII Project R2003-138

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Foliar nutrients of lodgepole pine growing amid naturally occurring Sitka Alder in the central interior of British Columbia

Author(s): Lohr, Christine; Hall, Richard W.
Imprint: 100 Mile House, B.C. : G.P.S. Forest Consultants Ltd., 2003
Subject: Alnus Viridis, British Columbia
Series: Forest Investment Account (FIA) - Forest Science Program


On areas under prescription, Sitka alder (Alnus viridus spp. sinuata) can prevent free growing declarations. This shrub is beneficial as a nitrogen fixer, yet still acts as a "competitor" according to the Establishment to Free Growing Guidebook. The silviculture surveyor needs objective criteria to assess free growing status on alder / conifer complexes. Growth differences on lodgepole pine (Pinus contorta) growing with and without Sitka alder on upland Cariboo sites will be compared. An objective methodology for assessing the impact of Sitka alder on lodgepole pine will then be generated, and recommendations to improve the guidebook will be made.
Christine Lohr.

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Updated August 02, 2006 

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