Transcript 14 Silvi Systems A Arsenault

Forest Science Program
Research, Consultation, and Extension
Soils
Plant Ecology
Hydrology
Geomorphology
Silvicultural Systems
Wildlife Ecology
Southern Interior Forest Region
2006-2007 update
Examples of products
170 extension events and products
10-15 peer-reviewed publications
“Guidance” information for
MPB retention strategies for wildlife, biodiversity,
and, hydrology
Wildfire erosion
Sarco and Mt. Caribou
Soil value and FREP
Silvicultural Systems Researchers
André
Michaela
Teresa
Provincial team
Our Mission is to provide current and future
credible and relevant science-based
silviculture information and expertise
Silvicultural Systems Projects
Southern Interior Forest Region
Silviculture
André’s program
Conservation Biology
Disturbance Ecology
Dry-belt forests in the Southern
Interior of British Columbia:
Perspectives on Historic
Disturbances and Implications
for Management
André Arsenault & Walt Klenner
BC Forest Service
Southern Interior Forest Region
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Fire and lightning data
Recorded (FIP) Harvesting in the
Kamloops Region to 1996
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Main Lakes
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Past harvesting and
Accounts by early explorers and surveys other disturbances
Some Key findings
• A complex mixed-severity fire and insect disturbance
regime likely shaped historic conditions
• Choosing a point in time for reference conditions is
problematic making “ecosystem restoration” difficult
• Identify key and measurable resource management
objectives (e.g. human safety, wildlife habitat, livestock
forage)
2003 Post-wildfire management
First Soil Seedbank study in the IDF
Showing rapid recovery of vegetation post-fire
Need to re-assess grass-seeding practices
A tool box for IDF forest management: Experimental Treatments
The Opax Mt. and Isobel projects
Testing alternatives to partial cutting
Dry forests in open conditions
A tool box for IDF forest management:2006-2007 field studies
The Opax Mt. and Isobel projects
Tree Regeneration
Seed predation
Performance
Extension
Forest managers of the future
Learning about IDF forests
Summer Sisco 2006 >100 souls
Distribution ecology of lichens in ICH
Inland rainforests
Provided assistance to Arrow/Boundary District
And Pope and Talbot in the Incomappleux
Macrolichen
Calicioid lichen
•Comparison of young and old stands
•Habitat requirements for old-growth-associated species
•Cyanolichen distribution and tool for predicting diversity hot-spots
•Information used during LRMPS
•Many papers, presentations, Best paper award, new hypotheses
Management Issue:
Can we harvest timber and maintain
caribou winter habitat ?
Mountain
caribou
Northern
caribou
Group Selection
based on openings up
to 1.0 ha
Response of arboreal lichen
biomass and composition
Conclusions:
After 10 years post-harvest, the
residual forest continues to provide
adequate lichen forage for caribou.
There is acceptable regeneration of
the treatments, and there are minimal
impacts on biodiversity (birds, small
mammals, plants).
Management Issue:
Are there alternatives to clearcutting that
managers can use to address issues such as
visual quality and species selection?
Uniform shelterwood silvicultural systems
Douglas-fir is an important species for timber
harvesting and biodiversity.
Can Douglas-fir be regenerated and grown on
frost prone sites in the SBS using various levels of
residual basal area retention?
Uniform shelterwoods or variable retention treatments
can be used to manage visual quality and biodiversity but
what are the implications to regeneration and overstory
trees when partial cutting on root disease infected sites?
Ice Road near Nakusp
Mount Seven near Golden
Conclusions:
The SBS shelterwood trial is adequately stocked with
Douglas-fir in the seed cut treatments and the final cut is
scheduled for 2010.
The ICH trials are successfully regenerated with several
species but growth is affected by the residual basal area.
Survival is just starting to be affected by Armillaria.
Regeneration and Stand Tending
• Regeneration in non-conventional silvicultural
systems (i.e. small gaps, under shelterwoods)
• Brushing (including broadleaf species)
• Stand rehabilitation
• Growth and yield of mixed species stands
• Site preparation / planting treatments
• Species Selection
• Density management
• Fertilization
Issue: How many aspen can be
retained in a pine stand without
compromising conifer productivity?
Or to Brush or not to brush!!
SBSdw1
Depends on where
you are
SBPSxc
IDFdk
And how much you have
You can keep some
Current outcomes
• Identified “best” method to predict level of
competition in the field
• Free growing guidelines have been altered
• Able to predict future growth under
different competitive environments
Issue: Over
130,000 ha of
height repressed
pine
Possible Solutions
• Keep current growing stock – stand
tending options
• Start over – rehabilitation options
Outcomes:
Fertilization /
thinning
worked
(36 years old in the SBPSdc)
Program
Challenges
• To continue to address high profile
issues: provincially and regionally
• To promote implementation of research
results where applicable and relevant
Program Successes
* A network of well designed long-term research
installations that are used for continuous
learning by a diverse research community even
within changing environments
* Knowledge transfer to foresters, students, the
public and the academic community
* Continuous success in securing research funding
through competitive process
Researchers at work!