scholarly journals Hail damage to a new white spruce and lodgepole pine plantation in central British Columbia

1973 ◽  
Vol 49 (4) ◽  
pp. 174-175 ◽  
Author(s):  
R. C. Dobbs ◽  
R. G. McMinn
Keyword(s):  
British Columbia ◽  
Lodgepole Pine ◽  
White Spruce ◽  
Pine Plantation ◽  
Hail Damage

not available

Growth of lodgepole pine and white spruce in the central interior of British Columbia

1982 ◽  
Vol 12 (3) ◽  
pp. 567-575 ◽  
Author(s):  
S. Eis ◽  
D. Craigdallie ◽  
C. Simmons
Keyword(s):  
British Columbia ◽  
Lodgepole Pine ◽  
Mixed Forest ◽  
Volume Growth ◽  
White Spruce ◽  
Mixed Stands ◽  
Potential Growth ◽  
Crown Width ◽  
Forest Sites ◽  
Second Growth

Height, diameter, volume growth, crown width, and stocking of lodgepole pine (Pinuscontorta Dougl.) and white spruce (Piceaglauca (Moench) Voss) were studied on the three most common forest sites in the central interior of British Columbia, to estimate their potential growth and their suitability for pure or mixed stands in managed second-growth forests established by planting. Spruce only should be planted on moist to wet Alluvium sites; both species appear to be equally suitable on moist Aralia sites, and pine only should be planted on dry to moist Cornus–Moss sites. In mixed forest, suppressed spruce will have little volume at the time of pine harvest. In general, managed, fully stocked second-growth forests should produce greater volume per hectare than the present natural, unmanaged forests.

scholarly journals Yield Implications of Site Preparation Treatments for Lodgepole Pine and White Spruce in Northern British Columbia

Forests ◽  
2010 ◽  
Vol 1 (1) ◽  
pp. 25-48 ◽  
Author(s):  
Francesco Cortini ◽  
Philip G. Comeau ◽  
Jacob O. Boateng ◽  
Lorne Bedford
Keyword(s):  
British Columbia ◽  
Lodgepole Pine ◽  
White Spruce ◽  
Site Preparation

The influence of espacement on the growth and development of a lodgepole pine plantation

1990 ◽  
Vol 20 (10) ◽  
pp. 1631-1639 ◽  
Author(s):  
W. D. Johnstone ◽  
J. C. Pollack
Keyword(s):  
British Columbia ◽  
Growth And Development ◽  
Lodgepole Pine ◽  
Major Effect ◽  
Early Growth ◽  
Pine Plantation ◽  
Four Square ◽  
Crown Dimensions

Seedlings from two lodgepole pine (Pinuscontorta Dougl. var. latifolia Engelm.) provenances were planted at four square espacements of 1.8, 2.4, 3.0, and 3.7 m in the Sub-Boreal Spruce Zone of central British Columbia. Data for the first 20 years after planting were analyzed in terms of the entire stand and portions of it. Plantation espacement had a major effect on early growth and development. Wide spacings resulted in greater diameter increments and produced trees of larger bole and crown dimensions. Close spacings resulted in larger per-hectare stand values and smaller branch diameters.

scholarly journals Spore Dispersal by Dothistroma septosporum in Northwest British Columbia

2015 ◽  
Vol 105 (1) ◽  
pp. 69-79 ◽  
Author(s):  
Kennedy Boateng ◽  
Kathy J. Lewis
Keyword(s):  
British Columbia ◽  
Lodgepole Pine ◽  
Summer Precipitation ◽  
Disease Spread ◽  
Spore Dispersal ◽  
Mixed Species ◽  
Inoculum Sources ◽  
Pine Trees ◽  
Dothistroma Septosporum ◽  
Needle Blight

We studied spore dispersal by Dothistroma septosporum, causal agent of a serious outbreak of red band needle blight in lodgepole pine plantations in northwest British Columbia. Spore abundance was assessed at different distances and heights from inoculum sources and microclimatic factors were recorded during two consecutive years. Conidia were observed on spore traps from June to September during periods of rainfall. It was rare to detect spores more than 2 m away from inoculum sources. The timing and number of conidia dispersed were strongly tied to the climatic variables, particularly rainfall and leaf wetness. Should the trend toward increased spring and summer precipitation in the study area continue, the results suggest that disease spread and intensification will also increase. Increasing the planting distances between lodgepole pine trees through mixed species plantations and overall reduction in use of lodgepole pine for regeneration in wet areas are the best strategies to reduce the spread of the disease and enhance future productivity of plantations in the study area.

scholarly journals Identifying and Characterizing Important Trembling Aspen Competitors with Juvenile Lodgepole Pine in Three South-Central British Columbia Ecosystems

2012 ◽  
Vol 2012 ◽  
pp. 1-12
Author(s):  
Teresa A. Newsome ◽  
Jean L. Heineman ◽  
Amanda F. Linnell Nemec
Keyword(s):  
British Columbia ◽  
Lodgepole Pine ◽  
Geographic Range ◽  
Regression Analyses ◽  
Relative Height ◽  
Trembling Aspen ◽  
Ecosystem Productivity ◽  
Height Ratio ◽  
Critical Height ◽  
South Central

Critical height ratios for predicting competition between trembling aspen and lodgepole pine were identified in six juvenile stands in three south-central British Columbia ecosystems. We used a series of regression analyses predicting pine stem diameter from the density of neighbouring aspen in successively shorter relative height classes to identify the aspen-pine height ratio that maximizedR2. Critical height ratios varied widely among sites when stands were 8–12 years old but, by age 14–19, had converged at 1.25–1.5. MaximumR2values at age 14–19 ranged from 13.4% to 69.8%, demonstrating that the importance of aspen competition varied widely across a relatively small geographic range. Logistic regression also indicated that the risk of poor pine vigour in the presence of aspen varied between sites. Generally, the degree of competition, risk to pine vigour, and size of individual aspen contributing to the models declined along a gradient of decreasing ecosystem productivity.

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