Potential biomass volumes from forest treatments in the west
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Potential Biomass Volumes From Forest Treatments in the West. Bryce Stokes National Program Leader Washington, DC ______ USDA Forest Service R&D. USDA Forest Service Jamie BarbourPNW Edward BilekFPL William ElliotRMRS Dennis FergusonRMRS Jeremy FriedPNW

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Potential Biomass Volumes From Forest Treatments in the West

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Potential biomass volumes from forest treatments in the west

Potential Biomass Volumes From Forest Treatments in the West

Bryce Stokes

National Program Leader

Washington, DC

______

USDA Forest Service R&D


Authors

USDA Forest Service

Jamie BarbourPNW

Edward BilekFPL

William ElliotRMRS

Dennis FergusonRMRS

Jeremy FriedPNW

Greg LiknesNCRS Dennis MayNCRS

Ron McRoberts NCRSPat MilesNCRS

Sue MillerRMRSJeff PrestemonSRS

Steve ReutebuchPNWBob RummerSRS

Wayne ShepperdRMRS

Ken SkogFPLBryce StokesWO

John VissageNCRS

University

Bruce HartsoughUCDGlen MurphyOSU

Authors

Partnership with the Western Forestry Leadership Coalition


Potential biomass volumes from forest treatments in the west

What was needed? A strategic assessment of western forest biomass!

How much?

Where?

What kind?

Who owns it?

Treatment opportunities?

Potential yields?

Small diameter utilization potential?

Costs ?


Potential biomass volumes from forest treatments in the west

The West – A BIG Place

129.6 million

acres


Forest inventory and analysis data

Forest Inventory and Analysis Data

Nation’s Forest Census

75 Year History

Comprehensive and Geo-referenced Sampling Frame

Nationally Consistent Sampling Protocols

5 Year Roll Up of National Statistics in RPA

  • Used combination of

  • periodical state and

  • annualized inventories

  • Extrapolation and data

  • synthesis

  • - Special analysis

  • Phase I is remote sensing; 1 plot

  • for 100 ha

  • Phase II is ground sampling; 1

  • plot for 2200 ha

  • Phase III is intensive plots; 1

  • plot for 38,500 ha


Potential biomass volumes from forest treatments in the west

Totals (in millions):

Timberland – 129.6 acres

Biomass – 6855.0 dry tons


Biomass analysis

Biomass Analysis

Acres and Volumes by

  • Condition Class

  • Stand Prescription Treatments (Used Stand Density Index)

  • Utilization (>7-in stem volume; <7-in stem, limbs, and tops)

  • Accessible

    • Terrain

    • Road

    • USED 60% ACCESSIBILITY


Potential biomass volumes from forest treatments in the west

Condition Classes

1 – use prescribe fire

2 – some mechanical treatments

3 – mechanical treatments required

Source: USFS Fire Sciences Laboratory


Sdi approach to biomass yields

SDI Approach to Biomass Yields

  • Stand Density Index approach is:

    • Science-based (species and locality differences are considered)

    • Allows for retention of some small trees as well as the removal of trees in all dbh classes (e.g. sustainability)

    • Provides a conservative and balanced stocking distribution over large areas

    • Doesn't require development of detailed prescriptions for large areas

    • Allows flexibility (Don’t know where trees actually are, so any management system can be accommodated at local scales)


Sdi applied to large areas

SDI Applied to Large Areas

Courtesy Wayne Shepperd, RMRS


Sdi thinning

SDI Thinning


Potential biomass volumes from forest treatments in the west

Totals (in millions):

Treatable timberland – 96.9 acres

Biomass – 6447.4 dry tons

Potential yield – 2154.0 dry tons


Potential biomass volumes from forest treatments in the west

Totals (in millions):

Treatable Cond. 2&3– 66.9 acres

Biomass – 4529.1 dry tons

Potential yield – 1493.4 dry tons


Potential biomass volumes from forest treatments in the west

Totals (in millions):

Treatable Cond. 3– 28.5 acres

Biomass – 1791.1 dry tons

Potential yield – 576.1 dry tons


Potential biomass volumes from forest treatments in the west

Small Diameter Utilization Potential

Volume vs. number of trees!


Potential biomass volumes from forest treatments in the west

Small Diameter Utilization Potential

  • Results

  • 245 million bdt of merchantable products

  • Annual Removal of 8-51 million bdt

  • Twice as much as current mill capacity for

  • Total 101 million bdt of non-merchantable biomass

  • Some MDF, OSB, and pulp capacity

  • Little energy capacity

Potential Yield by Owner

Condition Class 3


Range of conditions

Range of Conditions


A big job ahead

A big job AHEAD!

  • Total removal volume from Class 2 and 3 is nearly 40 times the annual conventional removal volume

  • The forest types and terrain are highly variable

  • Potential products and markets are also variable

  • Operations have to match the treatment and forest conditions as well as the product options

See entire report on www.fs.fed.us/research/pdf/Western_final.pdf


New biomass analysis tools

New Biomass Analysis Tools

  • BioSum - PNW

  • Field Treatment Evaluator – FPL

  • Biomass Mapping Program – FIA & RSAC

  • Others


Fia biosum full model

FIA plot & tree list data

Data

FIA BioSum: Full model

Assumptions

FVS/FFE

Fuel treatment Rx

Outputs

Models

Yield/efficacy

Cut-tree lists

Area treatable, cost, yield,

efficacy, subsidy options…

STHARVEST

Tmt. assumptions

On-site treatmentcost

Optimization

Plot location

Best processing sites

Haul cost processor

Impedance layer

Accumulation maps

Cost & yield per plot/processing site combo

Economic/policy thresholds


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