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Development of FIA BioSum to Evaluate Small Tree Biomass Production Possibilities, Costs and Fuel Treatment Effectiveness. Jeremy Fried, Jamie Barbour, Roger Fight, Glenn Christensen, Guy Pinjuv & others at USFS PNW, Rocky Mountain, and Southern Research Stations. Key Questions.
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Development of FIA BioSum to Evaluate Small Tree Biomass Production Possibilities, Costs and Fuel Treatment Effectiveness Jeremy Fried, Jamie Barbour, Roger Fight, Glenn Christensen, Guy Pinjuv & others at USFS PNW, Rocky Mountain, and Southern Research Stations
Key Questions • Is there enough biomass to fuel a power plant? • Where is the best place to locate a power plant? • How long would biomass feedstocks last? • How much improvement in fire hazard? • How much land area could be treated?
Objectives for FIA BioSum Rapid assessment via off-the-shelf data and methods to: • Find hot spots of biomass accumulation • Assess fuel treatment accomplishments in terms of fire hazard reduction • Quantify removed materials by size • Learn how answers respond to pricing, silvicultural Rx, cost assumptions and logging system alternatives
Manufacturing Costs Hauling Costs Harvesting Costs Silvicultural Prescriptions Users Specify… Product Prices
Analytic Framework • Founded on FIA inventory plot/tree attributes • Risk-reduction inspired silvicultural Rxs • Location/stand-tailored harvest methods • Haul-costs calculated for all plot-processing site pairs • Apply (via FVS & FFE) all Rx to database of treatment outputs for each plot • Merge with haul costs to ID top sites
1068 Inventory Plots in Klamath Ecoregion 4.4 million acres 3.8 million roaded acres 1.6 million treatable acres
Silvicultural Prescriptions • 7 Rx tested to date, including • Thin from below to various stocking limits • Uneven aged • SDI based across diameter classes • Concern that TFB not sustainable • But, many uneven aged Rx ineffective at reducing fire hazard
Silvicultural Prescriptions Treatment A: Stocking Reduction Merchantable trees are thinned proportionately across diameter classes to target residual basal area • Treatment B: Fire Hazard Reduction • Merchantable trees are thinned from below to residual basal area target • Leaves minimum basal area
Untreated Treatment A Treatment B
Untreated Treatment A Treatment B
Working “circles” in $2/ton increments $20/ton haul cost P-site
“Best” processing site location depends on price, Rx & objective Red sites maximize something
The incredible, shrinking plot base All 1068 plots 3.8 million acres 885 roaded plots 3.2 million acres 444 treatable plots 1.6 million acres 79 NetRev+ plots 0.3 million acres
Millions of tons of biomass at $26/ton, Rx A Biomass Accumulation Potential Millions of tons of biomass at $26/ton, Rx B
Biomass for energy production Typical 20 MegaWatt biomass fueled electrical generation plant consumes 700 green tons/day! • Treatment A: • At $26/ton accumulates 530,000 green tons • Power plant operates for 2 years • Treatment B: • At $26/ton accumulates 1.2 million green tons • Power plant operates for 4.7 years
Lessons/Challenges • Torching Index not improved by uneven aged Rx we tried • Conventional harvest systems used; new approaches could greatly reduce costs • Accounting for infrastructure • Power lines, biogas pipelines, non-forest biomass sources
Assume private landowners would select Rx that maximize fuel treatment or net revenue objectives? • 90% of tonnage not biomass- higher and more valuable usage almost certain • If manipulate to make it pay, how much fire safety actually achieved?
FIA BioSum DIY, the sequel • User accessible tool for “static analyses” that allows customization of: • Log/haul costs, delivered prices, transport network • Rxs, decision rules re: entry criteria & residual stand • Fire indices, risk reduction criteria • Specific sites to evaluate • Policy/institutional assumptions (e.g., willingness to treat) • Environmental mitigation • Size and species classes reported • And generates tables, reports, & maps
Timeline for the road ahead • Add 4 OR/CA ecoregions – Aug 02 • AZ and NM (whole states) – Nov 02 • Develop user-friendly tool – ????