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| Project Title: |
Effect of Precommercial Thinning on Crop tree infection
and Mortality by Root Disease. |
| Project Number: |
PFC-FC-FP-003 |
|
| District: |
Arrow Boundary, Rocky Mountain and Kootenay Lake Forest Districts |
|
| Location: |
Fitzstubbs Creek - Arrow
Lat. 50 14' N, Long. 117 33' W |
Opening: 82K023-024. |
|
Lussier River - Invermere
Lat. 50 4' N, Long. 115 38' W |
Opening: 82J002-040 |
|
Kidd Creek - Kootenay Lake
Lat. 49 12' W, Long. 116 9' W |
Opening: 82F020-759. |
| Principal Researcher: |
Duncan Morrison
Natural Resources Canada
Canadian Forestry Service
Victoria, B.C. V8Z 1M5 |
Phone: (250) 363-0642.
e-mail: dmorrison@pfc.forestry.ca |
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Objectives:
The objective of the project is to determine the effect of precommercial
thinning on the incidence of crop tree infection and mortality by A.
ostoyae, P. weirii and I. tomentosus.
Experimental Design:
There are eight A. ostoyae installations (Nelson - 3, Vancouver -
3, Kamloops - 1 and Cariboo - 1), two for P. weirii (Vancouver
and Kamloops) and one for I. tomentosus in Prince George.
Layout:
At each location, ten 20 m by 20 m plots with a 5 m-wide buffer were laid
out. Crop trees were selected according to MoF specifications, and were tagged,
measured and mapped. Plots were randomly assigned to thinned and control
treatments. Crop trees are assessed biennially for symptoms of root disease.
History:.
-
1992 - Lussier and Kidd installations established
-
1994 - Fitzstubbs installation established.
-
1996 - 1998 - Installations are assessed biennially
-
1999 - Kidd Creek and Lussier River installations assessed
-
2000 - Fitzstubs installation assessed
-
2001 - Check mortality at Kidd Creek and Lussier River
Status: Active
Reports and Publications: none to date
Comments:
So far there has been little detectable effect of thinning
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