The Effects of Juvenile Spacing on 7-Year-Old Lodgepole Pine in Central British Columbia

Author: Johnstone, Wayne D.

Source: Western Journal of Applied Forestry, Volume 20, Number 3, July 2005 , pp. 160-166(7)

Publisher: Society of American Foresters

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Abstract:

The effects of spacing 7-year-old second-growth lodgepole pine (Pinus contorta Dougl. var. latifolia Engelm.) are reported 20 growing seasons after treatment. Five spacing levels of 500, 1,000, 1,500, 2,000, and 2,500 trees per hectare, plus unspaced controls, were established on plots in central British Columbia. Both individual-tree and per-hectare data were analyzed. Spacing had a significant effect on all of the individual-tree characteristics examined, but its effect on per-hectare values was mixed. Although this report only provides short-term information on the effects of juvenile spacing on the growth and yield of lodgepole pine, it does indicate the need to optimize individual-tree growth rates with levels of growing stock to maximize yield per unit area. West. J. Appl. For. 20(3):160–166.

Keywords: Pinus contorta; precommercial thinning; growth and yield; environmental management; forest; forest management; forest resources; forestry; forestry research; forestry science; natural resources; natural resource management

Document Type: Regular article

Affiliations: 1: British Columbia Ministry of Forests, Research Branch Kalamalka Research Station Vernon BC Canada V1B 2C7, Email: wayne.johstone@gems2.gov.bc.ca

Publication date: 2005-07-01

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