FVS Setup

1. 1
Natural regeneration of
Pinus contorta after
clearcutting
Tops were piled and
burned
Currently > 7000 tpha
Expected stand development
without intervention
Our objectives
• Full site occupancy (> 35%)
• Maintain vigor, avoid self-thinning (< 60%)
Pinus contorta
Upper limit ~ 60%
Lower limit ~ 35%
Upper limit ~ 60%
Lower limit ~ 35%
EOR mean DBH ~ 30cm
Must have DBH > 15cm
for “commercial” thinning
(otherwise, it will be a
“precommercial thinning”)

2. 2
Precommercial
thinning:
Thin from below,
Leaving about 1600
TPHA,
Or about 607 TPA
When average DBH is
about 19 cm, we will
conduct another
thinning,
Leaving about 800
TPHA,
Or about 323 TPA