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The Forest Vegetation Simulator (FVS) A review of the Pacific Northwest Variants

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

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The Forest Vegetation Simulator (FVS) A review of the Pacific Northwest Variants

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  1. Forest Vegetation Simulator The Forest Vegetation Simulator (FVS) A review of the Pacific Northwest Variants Chad Keyser

  2. Forest Vegetation Simulator Presentation Roadmap • FVS Overview • FVS Demonstration • Questions

  3. Forest G & Y Modeling System USDA Forest Service supported Maintained by the FMSC in Fort Collins, CO Maintenance, Development, and User Support Forest Vegetation Simulator

  4. Forest Vegetation Simulator History • Prognosis Model for the Inland Empire Region • Expanded to other Geographic Regions • Renamed FVS

  5. Forest Vegetation Simulator • FVS System • Components • Pre Processors • G & Y Model • Post Processors • SUPPOSE Interface

  6. Forest Vegetation Simulator Pre Processors SUPPOSE USDA FS NRIS FSVeg FIA Mapmaker

  7. Forest 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.

  8. Forest Vegetation Simulator Geographic Variants • Base Model • FVS Extensions • Red Alder: PN WC

  9. Forest Vegetation Simulator Stand Information Stand ID Location code Stand origin year Slope Aspect Elevation Plant Assoc. / EcoClass Site species Site index Inventory year Inventory/Cruise Design Groupingcodes 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

  10. Forest Vegetation Simulator Stand Data Perform Mgmt Activities Growth (DBH & HT) FFE / I&D Mortality Regeneration FVS Processing Sequence Crown Change Update Stand Statistics

  11. Forest 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)

  12. Forest 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)

  13. Forest Vegetation Simulator Red Alder Height Growth • Potential HG based on Site Index • PN (Harrington and Curtis 1986), 20 yr BA • WC (Worthington et al 1960), 50 yr BA • Modified by RH and CR HTG = POTHTG * Modifier

  14. Post 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 SCALING THE 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 WHEN DBH GROWTH MODEL SCALE FACTORS WERE COMPUTED 0.00 0.00 0.00 INITIAL SCALE FACTORS FOR THE DBH INCREMENT MODEL 1.00 1.00 1.00 NUMBER OF RECORDS AVAILABLE FOR SCALING Forest Vegetation Simulator

  15. Forest Vegetation Simulator SUPPOSE Interface • Menus • List boxes • Radio buttons • Scroll bars • Text boxes • Pop-up lists

  16. Forest Vegetation Simulator • Pick stands for simulation • Set the time scale • number of cycles (5 or 10 year) • Assign Management Actions • harvest • regeneration • Select post processors • Run the simulation • View outputs • text files • spreadsheets • graphs

  17. Forest Vegetation Simulator Forest Management Service Center 2150 Centre Ave, Bldg. A, Suite 341a Fort Collins, CO 80526 www.fs.fed.us/fmsc/fvs FVS Hotline 970-295-5770 8:00 AM to 4:00 PM (Mountain time), M-F Gary Dixon Bob Havis Chad Keyser (295-5771) Stephanie Rebain Erin Smith-Mateja Don Vandendriesche

  18. Forest Vegetation Simulator Demonstration • FIA Dataset • Suppose • PN Variant • Post Processors

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