hlp 2006 09 prsnttn neptunetrainingsessionpart1background
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https://foothillsri.ca/sites/default/files/null/HLP_2006_09_Prsnttn_NEPTUNETrainingSessionPart1Background.pdfTRANSCRIPT
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NEPTUNE Training Session: Part 1: Background
Foothills Model Forest Natural
Disturbance Program
September, 2006
Dr. David Andison
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New
Emulation
Planning
Tool for
Understanding
Natural
Events
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Outline:
1. The FMF Natural Disturbance Program
2. The Natural Pattern Concept
3. A New Spatial Language
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Foothills Model Forest
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The FMF Natural Disturbance
Program
• Understand and integrate into forest land
management the patterns and process of natural
disturbance.
• Partner-driven, science-based and solution
oriented.
• Long-term vision / plan.
• 3 Main Classes of Projects:
- Research
- Integration
- Communication / Education
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Research Group Question: What are the
patterns and processes of natural disturbances?
- research.
Model Forest Question: What are the
patterns and processes of ND’s and the most
relevant issues pertaining to the integration and
use of the natural pattern strategy?
- research + education + communication +
demonstration + integration + facilitation.
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The ND Program Scope Spans All
Spatial Scales
Region - Foothills Model Forest
Landscape - Upper Foothills
Natural Sub-region
Disturbance - Gregg River Burn
Stand - Remnant island
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NDP Program Partners
- Hinton Wood Products – West Fraser
- Jasper National Park
- Alberta Sustainable Resource Development
- Alberta Newsprint Co.
Project Partners:
- Weyerhaeuser
- Blue Ridge
- Sundre Forest Products
- Millar-Western
- U. of Alberta
- U. of BC
- etc…
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The FMF Natural Disturbance
Program: Why?
A common desire among partners to maintain
biodiversity by adopting a strategy of emulating
natural, historical patterns of disturbance.
= defining some “coarse” filters for
decision-making.
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What is the natural pattern concept all about, and
(how) is it relevant to my world?
Give me some working examples of what a natural
pattern-inspired disturbance plan looks like.
How do patterns of past, current, and future cultural
disturbances compare to those of wildfires?
(How) Are natural disturbance dynamics critical
to other known, important ecological processes?
What are the patterns and processes of natural
disturbance?
Do I need to learn new terminology to understand
or use natural patterns?
Will the current system / budget / people allow natural
patterns to happen?
(How) Do natural-inspired disturbance patterns fit
with other economic and social values?
A Hierarchy of Needs
Give me some operational tools with which to help
me design landscapes with natural patterns in mind.
Theory
Language
Knowledge
Examples
Relevance
Convergence
Acceptance
Tools
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Where did the Natural Disturbance
Model Come From?
• A strategy to maintain biodiversity.
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How Does One Maintain
Biodiversity?
Option 1: Leave. Move out, stop harvesting,
and let natural processes take over.
Option 2: “Manage” for biodiversity values. A)
issue-based vs. B) coarse filter approaches.
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A. Issue-Based
We are most familiar and comfortable
dealing with specific and direct issues, such
as species extinctions, soil erosion, or old
growth.
= “Issue-Based Approach”
(which to some = “fine filter”)
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Ecological Issue #1: Pine Marten
Ecological Issue #2: Moose
Ecological Issue #3: Soil erosion
Ecological Issue #4: Productivity
……etc
Economic Issue #1: Woodflow
Economic Issue #2: Local jobs
Economic Issue #3: Outfitters
Economic Issue #4: Reduce waste
…. etc
Social Issue #1: Recreation
Social Issue #2: Hunting opp.
Social Issue #3: Local jobs
Social Issue #4: TEK
…. etc
Mgmt. Objectives
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• Long history of research
• Target most important issues
• Aids species understanding
• Concepts easily grasped
Advantages to the Issue-
Based Approach
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• Selective & subjective.
Weakness of the Issue-
Based Approach
- Several million species in Canada, of which we
have only named a fraction.
- Are the ones we have not yet found / studied /
named important???
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Who is “in”?
Who is more
important?
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Weakness of the Issue-
Based Approach
• Targets, goals are subjective
- How many Caribou are “good” or
“sustainable”?
- What happens below or above that level?
(predators, food supply, breeding, ….)
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• Forces “tradeoff” mentality
Ecological Issue #1: Pine Marten
Ecological Issue #2: Moose
Ecological Issue #3: Soil erosion
Ecological Issue #4: Productivity
Economic Issue #1: Woodflow
Economic Issue #2: Local jobs
Economic Issue #3: Outfitters
Economic Issue #4: Reduce waste
Social Issue #1: Recreation
Social Issue #2: Hunting opp.
Social Issue #3: Local jobs
Social Issue #4: TEK
Moose Mgmt.
Target?
Weakness of the Issue-
Based Approach
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B. Coarse Filter
We can also think of ecological considerations from
a more holistic viewpoint.
What historical patterns and structures maintained
natural levels of the entire suite of issues - known,
named, or otherwise?
= “Coarse Filter Approach”
Often associated with the “Natural Range of Variation” (NRV)
Note: “Coarse” does not refer to scale!
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Advantages to the Coarse
Filter Approach
• Study cause vs. effect
(ie, no interpretations).
• Quantifiable (ranges)
• Objective
• Solution-space oriented
Patch
Size
Time
1950 2000
Solution
Space NRV }
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• Is the past a model for the
future?
Weakness of the Coarse
Filter Approach
- Will climate change change everything?
- How far back do we go for benchmarks?
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• If we build it, will they come?
Weakness of the Coarse
Filter Approach
- Assumes that there is a direct relationship
between patterns and ecological responses.
- Assumes that coming close is good enough.
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• It is a new science.
Weakness of the Coarse
Filter Approach
- how do we know when we are “doing it”?
Dave’s 4 Rules of NRV:
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Are we now, or in the future, staying within “natural range of
variation” benchmarks, at any one point in time?
QUESTION 1:
Red Flag
check
Old Forest %
Time
2000
NRV
2030
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Old Forest %
Time
1950
2000
Unknown Territory
Unknown Territory
Are we representing the full range of natural variation over
time? … or just hanging around the bare minimums?
QUESTION 2:
Temporal High-Grade
check
NRV
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1%
2%
6%
0% 25%
11%
9%
1%
5%
15%
7%
17%
3%
7%
14%
4%
2%
6%
4% 5% 3%
2%
5%
5%
5%
3%
3%
3% 4%
4%
QUESTION 3:
Are we representing the full range of natural variation
over space?
Spatial High-Grade
Check A “natural” distribution
of island remnants %
Island remnants %
left by harvesting
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QUESTION 4:
Are we
considering
a complete
list of
natural
patterns……
…or just a
select few?
Disturbance frequency
Seral-stage percentages
Old growth spatio-temporal tendencies
Disturbance types / severity
Disturbance event sizes
Patch size distribution
Patch shape distribution
Event mosaics
Area of island remnants
Numbers of island remnants
Island remnant locations
Edge architecture
Within patch heterogeneity
Coarse woody debris
Dead & live standing individuals
Mineral soil exposure
Biomass loads
Soil nutrients
Soil compaction
Disturbance probabilities
Water temperatures
Water flows
Water nutrients
Cherry-Picking
check
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Coarse filter vs. Issue Based?
No. They are the perfect complement.
Issue-base Weaknesses:
- coverage of species.
- subjectivity.
Coarse-filter weaknesses:
- ecological response assumptions.
- the past as a model for the future.
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Patterns Within Wildfires
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The Mistohay Experiment:
Mistik Management, Meadow Lake, Saskatchewan
Traditional Plan Actual “Natural” Plan
2,678 ha harvested in 31 blocks.
Ave. patch size = 84 ha (1 – 1,104 ha range)
Total disturbance edge = 167 km.
50 km of roads
2,680 ha harvested in 129 blocks.
Ave. patch size = 21 ha (3 – 65 ha range)
Total disturbance edge = 326 km.
122 km of roads.
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What is the natural pattern concept all about, and
(how) is it relevant to my world?
Give me some working examples of what a natural
pattern-inspired disturbance plan looks like.
How do patterns of past, current, and future cultural
disturbances compare to those of wildfires?
(How) Are natural disturbance dynamics critical
to other known, important ecological processes?
What are the patterns and processes of natural
disturbance?
Do I need to learn new terminology to understand
or use natural patterns?
Will our current system / budget / people allow
natural patterns to happen?
(How) Do natural-inspired disturbance patterns fit
with other economic and social values?
A Hierarchy of Needs
Give me some operational tools with which to help
me design landscapes with natural patterns in mind.
Theory
Language
Knowledge
Examples
Relevance
Convergence
Acceptance
Tools
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13 Patches 8,886 ha
15 Patches 28 ha
54 Patches 697 ha
76 Patches 1,163 ha
Wildfires are patchy,
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…residuals are not orderly,
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…and many spatial features are ambiguous.
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First Priority: What is a “Wildfire”?
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How to Make a Disturbance Event
1. Isolate “Disturbed
Patches”
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2. Buffer out 250m.
How to Make an
“Event”
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How to Make an
“Event”
3. Buffer in 250m.
(Fill in any “holes”)
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Why use buffering?
Why 250m?
• Consistency
• Simplicity
• Repeatability
• Representative
• Well Tested
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Original Fire Map
Disturbance Event
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Island Remnants (mapped)
Matrix Remnants (generated)
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Islands + Matrix = Residuals
+ =
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Disturbed
Patches
Island
Remnants
Matrix
Remnants
Event
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Bear River Fire (1974)
Disturbed = 412 ha
Matrix Remnants = 62 ha (13%)
Island Remnants = 33 ha (7%)
Event = 507 ha (100%)
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Falling Horse Fire (1979)
Disturbed = 5,819 ha
Matrix Remnants = 872 ha (13%)
Island Remnants = 1,844 ha (28%)
Event = 6,691 ha
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Undisturbed Islands
Partially Disturbed Islands
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What is the natural pattern concept all about, and
(how) is it relevant to my world?
Give me some working examples of what a natural
pattern-inspired disturbance plan looks like.
How do patterns of past, current, and future cultural
disturbances compare to those of wildfires?
(How) Are natural disturbance dynamics critical
to other known, important ecological processes?
What are the patterns and processes of natural
disturbance?
Do I need to learn new terminology to understand
or use natural patterns?
Will our current system / budget / people allow
natural patterns to happen?
(How) Do natural-inspired disturbance patterns fit
with other economic and social values?
A Hierarchy of Needs
Give me some operational tools with which to help
me design landscapes with natural patterns in mind.
Theory
Language
Knowledge
Examples
Relevance
Convergence
Acceptance
Tools
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