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ASFP

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Information about ASFP
Education
esp

Published on April 21, 2008

Author: Marco1

Source: authorstream.com

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Slide1:  Ecologically Sustainable Production (ESP) of Forest Resources Lumber recovery from small diameter ponderosa pine in Northern Arizona Dennis Becker, Pacific Northwest Research Station Eini Lowell, Pacific Northwest Research Station Bob Rummer, Southern Research Station Slide2:  Small Diameter Timber Utilization - Vertical Integration Slide3:  Joint Fire Science Program - National Fire Plan Objectives Characterize the forest resource in the woods by providing a simple measure to identify product potential. Estimate the amount of various products in the resource. Improve small diameter wood utilization through in-woods processing. Assess post treatment fuel conditions. Slide4:  Local Cooperators Greater Flagstaff Forests Partnership Northern Arizona University Skyline Forest Resources, Escalante, UT Perkins Timber Harvesting High Desert Investment, Inc. Four Corners Sustainable Forest Partnership USDA Forest Service Joint Fire Science Program Pacific Northwest Research Station Southern Research Station Rocky Mountain Research Station Coconino National Forest Dixie National Forest Cooperators Slide5:  Site Selection & Stand Treatments Fort Valley Experimental Forest 20-acre plots in Units #13 and 23 Restoration treatment Cut-to-length harvesting system Slash extracted to roadside for chipping or burning (10 acres each plot) In-woods pilling for jackpot burning (10 acres each plot) Slide6:  Site Selection & Stand Treatments A-1 Mountain 20-acre plots in Units #40 and 41 Fuels reduction treatment (Class III) Conventional whole-tree system Feller buncher, grapple skidder, and stroke delimber *All units representative of a range of variability in slope, tree sizes, tree heights, and stand density Slide7:  Harvesting Systems Timberjack 1010B forwarder w/ ecotracks Timberjack 1270 harvester Cut-to-Length Harvesting System Slide8:  Harvesting Systems Hydro-ax 412E feller buncher Caterpillar 528 grapple skidder Denharco 4400 stroke delimber Conventional Whole Tree Harvesting System Slide9:  Elemental Time and Motion Studies Productive Machine Hours Site condition (stem size, slope, and extraction distance) Operator skill Predict productivity and cost of different harvesting systems Investment Costs Equipment cost Annual depreciation (economic life) Insurance and taxes Operating costs (maintenance & repairs) Wages and benefits Slide10:  Elemental Time and Motion Studies Source: Larson et al., 2000 Slide11:  Fuels Treatment Survey Pre- & Post Treatment Fuels Survey Crown and surface fuels were measured for each plot Trees over 2” d.b.h. and ground and vegetative cover were measured Dead and down debris and fuel loads in slash were also measured Slide12:  Stand Densities 544.5 trees/ac. 180.2 trees/ac. Slide13:  Stand Densities 2-4 Restoration Rx Residual BA – 53.7 ft2/ac. BA Reduction – 55.9% Blend Restoration Rx Residual BA – 71.0 ft2/ac. BA Reduction – 29.0% 92.8 trees/ac. 74.7 trees/ac. Harvested Trees Remaining Trees Slide14:  Tree Samples Selected Study Trees A sample of small diameter trees (5” – 9.5” d.b.h.) harvested from each fixed-area study plot was selected, marked, and mechanized for processing Slide15:  Log Volume and Grade Recovery Woods length logs were transported to Skyline Forest Resources for scaling and MicroMill® processing 8-ft logs processed into cants (4x4, 3x3) were kiln-dried, surfaced, and graded by certified graders Volume and grade recovery data collected for 4x4s, 3x3s, and 1x4 jacket boards Solid wood and Biomass Processing MicroMill SLP5000D Processor Slide16:  Small Log Volume Recovery Slide17:  Small Log Grade Recovery Percent of Total Board Feet Slide18:  Small Log Market Return Inland Empire Ponderosa Pine (Feb. 21, 2003) Slide19:  Transportation Transportation Distance and Load Volume Approximately 50% of small log processing costs are in transportation and handling (Lynch, 2001). Breakeven costs for sawlogs (5-12” d.b.h.) in Idaho is 60 miles; less than 15 miles for biomass (Han et al., 2002). Options to reduce costs: In-woods debarking and initial drying can increase load volume by 40-50% (with load restrictions). Preliminary log processing into flitches for transportation. Modification of chip vans and log trucks. Preliminary in-woods sorting of logs to optimal markets. Slide20:  Higher Value Logs Lower Value Logs Market Opportunities for Small Logs Source: Dramm, FPL Slide21:  Market Opportunities for Small Logs Source: Dramm, FPL Slide22:  Putting it all Together Slide23:  Putting it all Together Slide24:  Small Diameter Timber Utilization - Vertical Integration Slide25:  Yet to be collected… Volume of Chippable Material Total volume of slash material that can be chipped for biomass will be calculated for each 20-acre plot based on harvesting technique and stand treatment Post Treatment Soil Disturbance Assessments of soil disturbance as a result of harvesting techniques is being measured for each plot based on observational survey methods Jackpot Burning vs. Chipping Compare the financial costs associated with jackpot burning versus in-woods chipping and transportation Slide26:  Continuing Research “In-Woods” MicroMill® Processing “Break-even” analysis of financial, technical, and logistical feasibility based on product volume and grade recovery studies Move-in and set-up costs, processing, maintenance and repairs, and labor Manufacturing options include flitches, rough-sawn green lumber, and chips Partners include GFFP, NAU, Skyline Forest Resources, MicroMill, Inc., Escalante Heritage Center, FCSFP, and Forest Trust Slide27:  Deliverables Forest Planning Model Estimate costs of removing small diameter timber Match solid wood and biomass options in the region to maximize economic return Illustrate a range of viable harvesting options in the Southwest Evaluate fuel management scenarios Field Guide Assist planners in developing fuels management Rx Identify cost of Rx and level of subsidy that may be necessary to perform fuels reduction treatments Slide28:  Technology Transfer PNW Station publication with spreadsheet program Available to planners, businesses, economic development agencies, community groups, and entrepreneurs Field demonstrations to exhibit economically feasible harvesting/ processing options for small log utilization Presentations at workshops and meetings Web site Slide29:  Ecologically Sustainable Production (ESP) of Forest Resources (http://www.fs.fed.us/pnw/sev/esp/ESP-JFS.htm) Eini Lowell USDA Forest Service PNW Research Station P.O. Box 3890 Portland, OR 97208 PH: (503) 808-2072 elowell@fs.fed.us Dennis Becker USDA Forest Service PNW Research Station 2500 S. Pine Knoll Drive Flagstaff, AZ 86001 PH: (928) 556-2159 drbecker@fs.fed.us For more information contact:

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