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| Project Title: |
The Effect of Spacing on the Growth and Yield of Lodgepole
Pine |
| Project Number: |
EP 922.07 |
| District: |
Rocky Mountain Forest District |
| Location: |
Driftwood Creek
Lat. 50 55'N -
Long. 116 36'W |
Opening # 82N054-053 |
| Principal Researcher: |
W. D. Johnstone
Kalamalka Forestry Centre,
Vernon, BC |
Phone: (250) 260-4769
e-mail: Wayne.Johnstone@gov.bc.ca |
|
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Objective:
-
To determine the effects of juvenile spacing on the growth and yield of lodgepole
pine.
Experimental Design:
Treatment:
-
Five post-thinning densities (500, 1000, 1500, 2000 and 2500 stems per hectare)
are tested in a 16-year-old, fire origin stand.
Layout:
-
Randomized complete-block design
-
Two replicates (blocks), each consisting of an unspaced control plot and
five treatment plots
-
Square treatment plots vary in size and contain 10 rows of 10 trees.
History:
-
1987 study establishment and baseline measurement
-
1992 first five-year assessment
-
1994 chemical brush control
-
1997 second five-year assessment
-
1998 tenth year progress report.
-
1999 classified biogeoclimatically.
Status: Active
Reports and Publications:
Johnstone, W.D. 1993. The effect of spacing on the growth and yield of lodgepole
pine. B.C. Min. For., Res. Br., Victoria, B.C. Unpublished establishment
and progress report. 14 pp.
Comments:
Expected, general trend of largest trees at widest spacing is developing,
particularly in terms of diameter. Higher than expected damage to crop trees
due to wildlife. Data and photographs are on file at KRS.
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