fvs the forest vegetation simulator (fvs) a review of the pacific northwest variants chad keyser...

FVSFVS

The Forest Vegetation Simulator (FVS)

A review of the Pacific Northwest Variants

Chad Keyser

Forest Vegetation SimulatorForest Vegetation Simulator

FVSFVS Forest Vegetation SimulatorForest Vegetation Simulator

Presentation Roadmap

1. FVS Overview

2. FVS Demonstration

3. Questions

FVSFVS

Forest G & Y Modeling System

• USDA Forest Service supported

• Maintained by the FMSC in Fort Collins, CO

• Maintenance, Development, and User Support



History

• Prognosis Model for the Inland Empire Region

• Expanded to other Geographic Regions

• Renamed FVS

FVSFVSFVS System Components

• Pre Processors

• G & Y Model

• Post Processors

• SUPPOSE Interface


FVSFVSPre Processors

SUPPOSE

USDA FS NRIS FSVeg

FIA Mapmaker



G & Y Model

FVS is a distance-independent individual tree model comprised of empirical equations that

predict diameter and height growth, crown change and mortality over time.

FVSFVS

Geographic Variants

• Base Model

• FVS Extensions

• Red Alder: PN WC


FVSFVSStand Information

Stand IDLocation code

Stand origin yearSlope Aspect

ElevationPlant Assoc. / EcoClass

Site speciesSite index

Inventory yearInventory/Cruise Design

Grouping codes

Tree Information

Plot Number

Tree Number

Tree Count

Tree History

SPECIES

DBH

Height

Crown Ratio

Damage/Severity Codes

Tree Value Class

Cut/Leave Status

Growth Increment


FVSFVSStandData

Growth(DBH & HT)

Mortality FFE / I&D

Crown Change

Regeneration

Perform Mgmt Activities

Update StandStatistics


FVS Processing Sequence


Red Alder Diameter Growth (PN)

1,369 Growth Sample Trees• 34 from the Siuslaw ’73• 610 from the Olympic ’74• 534 from BLM lands in Oregon• 191 from BIA Quinalt

Ln(dds) = f(stand, tree, competition measures)


Red Alder Diameter Growth (WC)

125 Growth Sample Trees• 14 from the Gifford Pinchot NF• 29 from the Mt. Baker – Snoqualmie NF• 65 from the Mt. Hood NF• 8 from the Umpqua NF• 9 from the Willamette NF

DG = f(BA and DBH)


Red Alder Height Growth

1. Potential HG based on Site Index• PN (Harrington and Curtis 1986), 20 yr

BA• WC (Worthington et al 1960), 50 yr BA

2. Modified by RH and CR

HTG = POTHTG * Modifier

FVSFVSPost Processors• stand and stock tables• structure and habitat statistics• fire, insect and disease hazard ratings• computer visualizations (SVS)

FOREST VEGETATION SIMULATOR VERSION 6.2 -- SOUTHEAST TWIGS **TEST** RV:02.26.98 05-23-1998 12:59:34

----------------------------------------------------------------------------------------------------------------------------------

OPTIONS SELECTED BY INPUT----------------------------------------------------------------------------------------------------------------------------------KEYWORD PARAMETERS:-------- -----------------------------------------------------------------------------------------------------------------------

STDIDENT STAND ID= C315S01 Stand C315S01 at Smokey District

STDINFO FOREST-LOCATION CODE= 80308; HABITAT TYPE= 0; AGE= 77; ASPECT AZIMUTH IN DEGREES= 0.; SLOPE= 0.% ELEVATION(100'S FEET)= 0.0; LATITUDE IN DEGREES= 0.

DESIGN BASAL AREA FACTOR= 10.0; INVERSE OF FIXED PLOT AREA= 1.0; BREAK DBH= 0.0 SEE "OPTIONS SELECTED BY DEFAULT" FOR PLOT COUNTS AND SAMPLING WEIGHT.

THINBBA DATE/CYCLE= 2007; RESIDUAL= 80.00; PROPORTION OF SELECTED TREES REMOVED= 1.000 DBH OF REMOVED TREES WILL RANGE FROM 0.0 TO 999.0 INCHES, AND HEIGHT OF REMOVED TREES WILL RANGE FROM 0.0 TO 999.0 FEET.

THINABA DATE/CYCLE= 2027; RESIDUAL= 60.00; PROPORTION OF SELECTED TREES REMOVED= 1.000 DBH OF REMOVED TREES WILL RANGE FROM 0.0 TO 999.0 INCHES, AND HEIGHT OF REMOVED TREES WILL RANGE FROM 0.0 TO 999.0 FEET.

OPEN DATA SET REFERENCE NUMBER = 2; BLANK=ZERO; STATUS=UNKNOWN MAXIMUM RECORD LENGTH (IGNORED ON SOME MACHINES) = 150; FILE FORM= 1 (1=FORMATTED, 2=UNFORMATTED) DATA SET NAME = C315S01.tre

TREEDATA DATA SET REFERENCE NUMBER= 2

CLOSE DATA SET REFERENCE NUMBER = 2

SPLABEL STAND POLICY LABEL SET: All, C315

PROCESS PROCESS THE STAND.

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OPTIONS SELECTED BY DEFAULT

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TREEFMT (I4,T1,I7,F6.0,I1,A3,F4.1,F3.1,2F3.0,F4.1,I1,3(I2,I2),2I1,I2, 2I3,2I1)

DESIGN BASAL AREA FACTOR= 10.0; INVERSE OF FIXED PLOT AREA= 1.0; BREAK DBH= 0.0 NUMBER OF PLOTS= 10; NON-STOCKABLE PLOTS= 0; STAND SAMPLING WEIGHT= 10.00000

SITE SPECIES=RO CODE= 100

----------------------------------------------------------------------------------------------------------------------------------

ACTIVITY SCHEDULE----------------------------------------------------------------------------------------------------------------------------------CYCLE DATE EXTENSION KEYWORD DATE PARAMETERS:----- ---- --------- -------- ---- ------------------------------------------------------------------------------------------ 1 1997 2 2007 BASE THINBBA 2007 80.00 1.00 0.00 999.00 0.00 999.00 3 2017 4 2027 BASE THINABA 2027 60.00 1.00 0.00 999.00 0.00 999.00----------------------------------------------------------------------------------------------------------------------------------

CALIBRATION STATISTICS:

SH WP RO ---- ---- ----

NUMBER OF RECORDS PER SPECIES 6 18 77

NUMBER OF RECORDS WITH MISSING HEIGHTS 6 18 77

NUMBER OF RECORDS WITH BROKEN OR DEAD TOPS 0 0 0

NUMBER OF RECORDS WITH MISSING CROWN RATIOS 6 18 77

NUMBER OF RECORDS AVAILABLE FOR SCALINGTHE DIAMETER INCREMENT MODEL 0 0 0

RATIO OF STANDARD ERRORS(INPUT DBH GROWTH DATA : MODEL) 1.00 1.00 1.00

WEIGHT GIVEN TO THE INPUT GROWTH DATA WHENDBH GROWTH MODEL SCALE FACTORS WERE COMPUTED 0.00 0.00 0.00

INITIAL SCALE FACTORS FOR THEDBH INCREMENT MODEL 1.00 1.00 1.00

NUMBER OF RECORDS AVAILABLE FOR SCALING


FVSFVS

SUPPOSE Interface

• Menus

• List boxes

• Radio buttons

• Scroll bars

• Text boxes

• Pop-up lists


FVSFVS

1. Pick stands for simulation2. Set the time scale

a. number of cycles (5 or 10 year)

3. Assign Management Actionsa. harvestb. regeneration

4. Select post processors5. Run the simulation6. View outputs

a. text filesb. spreadsheetsc. graphs


FVSFVSForest Management Service Center2150 Centre Ave, Bldg. A, Suite 341aFort Collins, CO 80526www.fs.fed.us/fmsc/fvs

FVS Hotline 970-295-57708:00 AM to 4:00 PM (Mountain time), M-F

Gary Dixon Bob HavisChad Keyser (295-5771) Stephanie RebainErin Smith-Mateja Don Vandendriesche



Demonstration

• FIA Dataset

• Suppose

• PN Variant

• Post Processors

fvs the forest vegetation simulator (fvs) a review of the pacific northwest variants chad keyser...

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