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Forest Vegetation Simulator. The Forest Vegetation Simulator (FVS) A review of the Pacific Northwest Variants. Chad Keyser. Forest Vegetation Simulator. Presentation Roadmap FVS Overview FVS Demonstration Questions. Forest G & Y Modeling System USDA Forest Service supported - PowerPoint PPT Presentation
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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
Forest Vegetation SimulatorForest Vegetation Simulator
FVSFVS Forest Vegetation SimulatorForest Vegetation Simulator
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
Forest Vegetation SimulatorForest Vegetation Simulator
FVSFVSPre Processors
SUPPOSE
USDA FS NRIS FSVeg
FIA Mapmaker
Forest Vegetation SimulatorForest Vegetation Simulator
FVSFVS Forest Vegetation SimulatorForest Vegetation Simulator
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
Forest Vegetation SimulatorForest Vegetation Simulator
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
Forest Vegetation SimulatorForest Vegetation Simulator
FVSFVSStandData
Growth(DBH & HT)
Mortality FFE / I&D
Crown Change
Regeneration
Perform Mgmt Activities
Update StandStatistics
Forest Vegetation SimulatorForest Vegetation Simulator
FVS Processing Sequence
FVSFVS Forest Vegetation SimulatorForest Vegetation Simulator
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)
FVSFVS Forest Vegetation SimulatorForest Vegetation Simulator
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)
FVSFVS Forest Vegetation SimulatorForest Vegetation Simulator
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.
----------------------------------------------------------------------------------------------------------------------------------
OPTIONS SELECTED BY DEFAULT
----------------------------------------------------------------------------------------------------------------------------------
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
Forest Vegetation SimulatorForest Vegetation Simulator
FVSFVS
SUPPOSE Interface
• Menus
• List boxes
• Radio buttons
• Scroll bars
• Text boxes
• Pop-up lists
Forest Vegetation SimulatorForest Vegetation Simulator
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
Forest Vegetation SimulatorForest Vegetation Simulator
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
Forest Vegetation SimulatorForest Vegetation Simulator
FVSFVS Forest Vegetation SimulatorForest Vegetation Simulator
Demonstration
• FIA Dataset
• Suppose
• PN Variant
• Post Processors