FVS Forest Vegetation Simulator The Forest Vegetation Simulator

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

FVS Forest Vegetation Simulator Presentation Roadmap 1. FVS Overview 2. FVS Demonstration 3. Questions

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

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

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

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

FVS 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.

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

FVS Forest Vegetation Simulator Stand Information Stand ID Location code Stand origin year Slope Aspect Elevation Plant Assoc. / Eco. Class Site species Site index Inventory year Inventory/Cruise Design Grouping codes Tree Information Plot Number Tree Count Tree History SPECIES DBH Height Crown Ratio Damage/Severity Codes Tree Value Class Cut/Leave Status Growth Increment

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

FVS 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)

FVS 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)

FVS Forest 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

FVS Forest Vegetation Simulator Post Processors stand 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= C 315 S 01 STDINFO FOREST-LOCATION CODE= ELEVATION(100'S FEET)= DESIGN BASAL AREA FACTOR= 10. 0; INVERSE OF FIXED PLOT AREA= 1. 0; BREAK DBH= SEE "OPTIONS SELECTED BY DEFAULT" FOR PLOT COUNTS AND SAMPLING WEIGHT. Stand C 315 S 01 at Smokey District 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 = C 315 S 01. tre TREEDATA SET REFERENCE NUMBER= CLOSE DATA SET REFERENCE NUMBER = SPLABEL STAND POLICY LABEL SET: All, C 315 PROCESS THE STAND. 80308; HABITAT TYPE= 0; AGE= 0. 0; LATITUDE IN DEGREES= 0. 77; ASPECT AZIMUTH IN DEGREES= 0. ; SLOPE= 0. % 0. 0 2 2 -----------------------------------------------------------------OPTIONS SELECTED BY DEFAULT -----------------------------------------------------------------TREEFMT (I 4, T 1, I 7, F 6. 0, I 1, A 3, F 4. 1, F 3. 1, 2 F 3. 0, F 4. 1, I 1, 3(I 2, I 2), 2 I 1, I 2, 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= 2 I 3, 2 I 1) 100 -----------------------------------------------------------------ACTIVITY SCHEDULE -----------------------------------------------------------------CYCLE DATE EXTENSION KEYWORD DATE PARAMETERS: ----- -----------------------------------------------1 1997 2 2007 BASE THINBBA 2007 80. 00 1. 00 0. 00 999. 00 3 2017 4 2027 BASE THINABA 2027 60. 00 1. 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 WEIGHT GIVEN TO THE INPUT GROWTH DATA WHEN DBH GROWTH MODEL SCALE FACTORS WERE COMPUTED 0. 00 INITIAL SCALE FACTORS FOR THE DBH INCREMENT MODEL 1. 00 NUMBER OF RECORDS AVAILABLE FOR SCALING

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

FVS Forest Vegetation Simulator 1. Pick stands for simulation 2. Set the time scale a. number of cycles (5 or 10 year) 3. Assign Management Actions a. b. harvest regeneration 4. Select post processors 5. Run the simulation 6. View outputs a. b. c. text files spreadsheets graphs

FVS Forest Vegetation Simulator Forest Management Service Center 2150 Centre Ave, Bldg. A, Suite 341 a 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 Chad Keyser (295 -5771) Erin Smith-Mateja Bob Havis Stephanie Rebain Don Vandendriesche

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