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Published byἈλκμήνη Βουγιουκλάκης Modified over 5 years ago
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Forest fuels evaluation and fuel treatment planning for DOI bureaus in 2008
Keith Reynolds, USDA Forest Service, PNW Research Station Jim Menakis, USDA Forest Service, Missoula Fire Sciences Lab Erik Christiansen, US Fish & Wildlife Service, Fire Mgmt Branch Paul Hessburg, USDA Forest Service, PNW Research Station
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The context Dissatisfaction (both internally and externally) with process used by federal resource agencies for allocating budgets for hazardous fuels reduction. Common perception that the agency does not prioritize and allocate funding according to the most critical needs. OIG Draft Report - Healthy Forests Initiative Audit No At. Key criticisms include: Lack of a transparent and repeatable process for budget allocation. Lack of a standardized system for characterizing fire danger and socio-economic values at risk.
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Basic needs of DOI fuels managers
Evaluation within scale Concurrent evaluation of states and processes within a single analysis Across scale Explicit linkage of evaluations across spatial scales Comparing evaluations over time (performance) Across phases of adaptive management Going from landscape evaluation to planning Satisfy basic requirements from GAO
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Logic models A form of meta database
A formal logical representation of how to evaluate information Networks of interrelated topics Mental map
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Forms of uncertainty Probabilistic uncertainty Linguistic uncertainty
Uncertainty of events Linguistic uncertainty Uncertainty about the definition of events Vagueness or imprecision A proposition is the smallest unit of thought to which one can assign a measure of truth (strength of evidence) SE: a measure that quantifies the degree of support for a proposition provided by its premises
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Logic models: strength of evidence
An example: strength of evidence for suitable slope for tractor logging. Degrees of support Yes No Partial Bivalent reasoning Yes No
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Decision models Summary of logic-based evaluation of wildfire potential is carried into decision model This model considers additional factors Logistical, economic, consequences, opportunities, etc. We use the analytic hierarchy process to help users structure the problem and develop weights for decision criteria the simple multi-attribute rating technique to interpret attributes of alternatives (e.g., regions or bureaus)
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Fuels evaluation and budget priorities for DOI regions and bureaus
Data for evaluating wildfire potential is summarized to each region of each bureau A bureau-level decision model prioritizes regions for budget allocation Regional data are summarized up to bureaus A national level decision model prioritizes bureaus for budget allocation
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Data to evaluate wildfire potential
Topic Datum Source Fire behavior Crown fire potential Missoula FSL Surface fire intensity Probability Length of fire season Number of large fires BLM, Boise Problem fire days Total fire starts All data obtained as, or converted to, 1-km grids.
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Basic logic for wildfire potential
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Data sources for decision model
Datum Source Biomass opportunity NFPORS Ecosystem health Missoula Emissions CWPP NFP authority Datum Source Vegetation maintenance Missoula Vegetation restoration Wildfire potential EMDS WUI UW
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DOI decision model
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National priorities Top ranked Most sensitive weight
Sensitivities Top ranked Most sensitive weight Absol. change required (%) Replaced by BLM emissions 72.1 NPS opportunities 4.9 BIA consequences 41.3 FWS
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Comments on the 2007 experience
A few bumps and warts Logic had to be highly simplified for existing data Some less than optimal data layers But the FY07 analyses met a basic need Rational and transparent models Positive review from GAO, Congressional staff, and agency fuels manager at various levels Common system between USDA and DOI
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The future … More comprehensive evaluation of wildfire potential based on LANDFIRE data Ramping up to the continental US Logistics are a major issue Better integration across all natural resource agencies
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A more advanced logic This diagram shows how the fire danger topic is organized and evaluated. The complete fire danger evaluation is made up of three parts—evaluation of fire vulnerability, fire severity, and ignition risk topics. Under each of these 3 topics are additional subtopics. Under vulnerability are the topics surface fuels, crown fuels, and fire regime. Under severity are the attributes spread rate, flame length, fire line intensity, and crown fire potential. Under ignition risk are the topics fire weather and ignition potential.
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A single unified model for planning
Assess current condition Context for planning (where are we starting from?) Evaluate alternative strategies A framework for synthesizing results of projections Harvest scheduling, vegetation modeling, etc. Priority analysis for more tactical decisions Which activities to do where? Evaluate plan implementation How well is the plan working?
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Outputs versus outcomes
Change in performance standards of federal agencies Old (outputs): acres treated per year New (outcomes): acres of reduced fire danger per year New planning rule and EMS Adaptive management (ISO 14001) Hypothesis testing Shift in distribution of outcomes?
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