F V F V SS

Forest Vegetation Forest Vegetation SimulatorSimulator

Red Alder Growth and Red Alder Growth and YieldYield

Erin Smith-MatejaErin Smith-MatejaUS Forest ServiceUS Forest Service

Forest Management Service CenterForest Management Service Center

F V F V SS

Forest Vegetation Forest Vegetation SimulatorSimulatorRoad Map…Road Map…

• Quick FVS OverviewQuick FVS Overview• Red alder dataRed alder data• How to Get FVS softwareHow to Get FVS software• Description of input dataDescription of input data• DemonstrationDemonstration

F V F V SS

• Individual-tree distance-independent modelIndividual-tree distance-independent model

• Stand Inventory (i.e. stand exams) are used Stand Inventory (i.e. stand exams) are used as input dataas input data

• Model outputs includeModel outputs include

- stock and stand tables- stock and stand tables

- stand and tree characteristics- stand and tree characteristics

- stand visualization- stand visualization

- - economic analysiseconomic analysis

FVS DescriptionFVS Description

Forest Vegetation Forest Vegetation SimulatorSimulator

F V F V SS

Forest Vegetation Forest Vegetation SimulatorSimulatorThe FVS VariantsThe FVS Variants

F V F V SS

Forest Vegetation Forest Vegetation SimulatorSimulatorCompare Management AlternativesCompare Management Alternatives

Red Alder Harvests at age 30 and 70

Douglas Fir PCT at 30, harvest at 70 years

Douglas Fir Stand vs. Red Alder

F V F V SS

How do Trees Grow?

(in the mind of a modeler)

height DBH f(tree, stand, site)

crown

…eventually mortality

F V F V SS

Forest Vegetation Forest Vegetation SimulatorSimulatorRed Alder DataRed Alder Data

Data Owners # of live/RA/dbh obs

Weyerhauser 132262

Rayonier 2508

Hardwood Cooperative 130848

The Campbell Group 3750

U.S. Forest Service 73567

B.C. Ministry of Forests 24521

University of Washington 9147

TOTALS 376603

F V F V SS

Forest Vegetation Forest Vegetation SimulatorSimulator

SoftwareSoftware

www.fs.fed.us/fmsc/fvs

Forest Service supportedForest Service supported

F V F V SS

Forest Vegetation Forest Vegetation SimulatorSimulator

F V F V SS

Forest Vegetation Forest Vegetation SimulatorSimulator

F V F V SS

Forest Vegetation Forest Vegetation SimulatorSimulatorFVS System

Components

• G & Y Model

• Post Processors

• SUPPOSE Interface

F V F V SS

Forest Vegetation Forest Vegetation SimulatorSimulatorOUTPUTOUTPUT

F V F V SS

Forest Vegetation Forest Vegetation SimulatorSimulator

YearHarvestBd Ft/Acre

PNVInternalRate ofReturn

B/CRatio

RealizableRate ofReturn

2004 17,006 221 >50.0 1.20 5.9

2014 21,678 241 46.7 1.25 5.2

2024 26,248 298 21.2 1.41 5.2

2034 30,438 370 14.8 1.68 5.4

2044 33,925 380 11.4 1.96 5.4

2054 36,920 363 9.5 2.24 5.4

2064 40,234 322 8.1 2.43 5.3

2074 42,382 249 7.0 2.41 5.2

2084 43,348 190 6.2 2.37 5.0

2094 44,364 135 5.6 2.15 4.8

F V F V SS

Forest Vegetation Forest Vegetation SimulatorSimulatorCarbon AccountingCarbon Accounting

F V F V SS

Forest Vegetation Forest Vegetation SimulatorSimulator

FVS FVS DemonstrationDemonstration

F V F V SS

Questions?Questions?

Erin Smith-MatejaErin Smith-MatejaForest Management Service CenterForest Management Service Center

www.fs.fed.us/fmsc/fvswww.fs.fed.us/fmsc/fvs

Forest Vegetation Forest Vegetation SimulatorSimulator