mb&g & odf1 using fvs to develop and test structure based management pam overhulser, odf...
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![Page 1: MB&G & ODF1 Using FVS to Develop and Test Structure Based Management Pam Overhulser, ODF Mark Rasmussen, MB&G 2/14/07 FVS Conference](https://reader036.vdocuments.mx/reader036/viewer/2022062404/5519d36f550346443e8b4b47/html5/thumbnails/1.jpg)
MB&G & ODF 1
Using FVS to Develop and TestStructure Based Management
Pam Overhulser, ODFMark Rasmussen, MB&G
2/14/07 FVS Conference
![Page 2: MB&G & ODF1 Using FVS to Develop and Test Structure Based Management Pam Overhulser, ODF Mark Rasmussen, MB&G 2/14/07 FVS Conference](https://reader036.vdocuments.mx/reader036/viewer/2022062404/5519d36f550346443e8b4b47/html5/thumbnails/2.jpg)
MB&G & ODF 2
Outline
• What is the planning problem?• How does FVS fit into the planning system?• How was FVS used?• Improvements
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MB&G & ODF 3
ODF planning area
• 632,000 acres– High site– Fire history– Ownership history
• ODF structure– Seven districts– Foresters and managers,
long tenure in place
![Page 4: MB&G & ODF1 Using FVS to Develop and Test Structure Based Management Pam Overhulser, ODF Mark Rasmussen, MB&G 2/14/07 FVS Conference](https://reader036.vdocuments.mx/reader036/viewer/2022062404/5519d36f550346443e8b4b47/html5/thumbnails/4.jpg)
MB&G & ODF 4
ODF Forest Plan Summary
• Structure Based Management– accelerate growth of large diameter trees; – develop multi-storied canopy– produce commercial crops of timber – shifting mosaic of complex structure -- no set asides
• Habitat Conservation Plan• Targets/Outputs
– 50% complex structure target– Maximize even-flow timber volume
![Page 5: MB&G & ODF1 Using FVS to Develop and Test Structure Based Management Pam Overhulser, ODF Mark Rasmussen, MB&G 2/14/07 FVS Conference](https://reader036.vdocuments.mx/reader036/viewer/2022062404/5519d36f550346443e8b4b47/html5/thumbnails/5.jpg)
MB&G & ODF 5
Complex planning questions
• Strategic– Structure v. revenue v. set asides– Agree to HCP?
• Tactical– What to do about SNC?– SBM silvicultural methods– Set harvest levels
• Operational– Adjacency constraints– Road systems– Owl clusters– Location of complex forests
![Page 6: MB&G & ODF1 Using FVS to Develop and Test Structure Based Management Pam Overhulser, ODF Mark Rasmussen, MB&G 2/14/07 FVS Conference](https://reader036.vdocuments.mx/reader036/viewer/2022062404/5519d36f550346443e8b4b47/html5/thumbnails/6.jpg)
MB&G & ODF 6
Analytical process
![Page 7: MB&G & ODF1 Using FVS to Develop and Test Structure Based Management Pam Overhulser, ODF Mark Rasmussen, MB&G 2/14/07 FVS Conference](https://reader036.vdocuments.mx/reader036/viewer/2022062404/5519d36f550346443e8b4b47/html5/thumbnails/7.jpg)
MB&G & ODF 7
H&H Model
Grow Stands Schedule harvest units Operationally feasible solution
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MB&G & ODF 8
Planning project stats
• Districts/models: 7• Acres: 632,070 • Stands: 6,673 • Harvest units: 14,306 • Polygons: 313,283 • Yield tables: 79,600• Coefficients: 108,564,472
• Budget: $2 million • Time: 36 months
![Page 9: MB&G & ODF1 Using FVS to Develop and Test Structure Based Management Pam Overhulser, ODF Mark Rasmussen, MB&G 2/14/07 FVS Conference](https://reader036.vdocuments.mx/reader036/viewer/2022062404/5519d36f550346443e8b4b47/html5/thumbnails/9.jpg)
MB&G & ODF 9
Why FVS?
• Evaluated 4 mature stand models,
and 3 young stand models – Data source– Support and documentation – Silviculture– Model behavior– Flexibility
• Growth models evaluated four times – south coast, northwestern districts, western cascades, southern Oregon
![Page 10: MB&G & ODF1 Using FVS to Develop and Test Structure Based Management Pam Overhulser, ODF Mark Rasmussen, MB&G 2/14/07 FVS Conference](https://reader036.vdocuments.mx/reader036/viewer/2022062404/5519d36f550346443e8b4b47/html5/thumbnails/10.jpg)
MB&G & ODF 10
Using FVS
1. Calibrate FVS
2. Choose taper system, merch specs
3. Define structure classes
4. Develop SBM cutting algorithms
5. Develop SBM regimes
6. Build, evaluate, report yields
![Page 11: MB&G & ODF1 Using FVS to Develop and Test Structure Based Management Pam Overhulser, ODF Mark Rasmussen, MB&G 2/14/07 FVS Conference](https://reader036.vdocuments.mx/reader036/viewer/2022062404/5519d36f550346443e8b4b47/html5/thumbnails/11.jpg)
MB&G & ODF 11
Using FVS: Calibrate FVSFG & AT: Sales & SLI v. FVS projections
0
20
40
60
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0 20 40 60 80 100 120 140 160
Age
Mb
f/ac
re
FG sales
AT sales
TL 544 -354
Cas 398 262
FG 480 243
FG SLI
AT SLI
TL SLI
TPA:Total - >4"
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MB&G & ODF 12
Using FVS: Volume calculations
1. PN, WC. SORNEC
2. Flewelling taper equations
3. Track volume and value by species by product/size/grade
4. Merch specsDistrict Astoria ElliottLog Length 40’ 32’Minimum Top DIB 5” 5” Trim Allowance 12” 12” Stump Height 1’ 1’ Minimum Log Length 12’ 12’Minimum DBH 8” 8”Defect by age
![Page 13: MB&G & ODF1 Using FVS to Develop and Test Structure Based Management Pam Overhulser, ODF Mark Rasmussen, MB&G 2/14/07 FVS Conference](https://reader036.vdocuments.mx/reader036/viewer/2022062404/5519d36f550346443e8b4b47/html5/thumbnails/13.jpg)
MB&G & ODF 13
Using FVS: Define structure classes
![Page 14: MB&G & ODF1 Using FVS to Develop and Test Structure Based Management Pam Overhulser, ODF Mark Rasmussen, MB&G 2/14/07 FVS Conference](https://reader036.vdocuments.mx/reader036/viewer/2022062404/5519d36f550346443e8b4b47/html5/thumbnails/14.jpg)
MB&G & ODF 14
Using FVS: Develop thinning specs• ODF financing, Auto Mark thinning contracts, 10 years of sales
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MB&G & ODF 15
Using FVS: Define a set of regimes
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MB&G & ODF 16
Using FVS: Make and evaluate yields
• YTG Tools
![Page 17: MB&G & ODF1 Using FVS to Develop and Test Structure Based Management Pam Overhulser, ODF Mark Rasmussen, MB&G 2/14/07 FVS Conference](https://reader036.vdocuments.mx/reader036/viewer/2022062404/5519d36f550346443e8b4b47/html5/thumbnails/17.jpg)
MB&G & ODF 17
![Page 18: MB&G & ODF1 Using FVS to Develop and Test Structure Based Management Pam Overhulser, ODF Mark Rasmussen, MB&G 2/14/07 FVS Conference](https://reader036.vdocuments.mx/reader036/viewer/2022062404/5519d36f550346443e8b4b47/html5/thumbnails/18.jpg)
MB&G & ODF 18
Planning resultsharvest volume
0
50
100
150
200
250
300
350
400
450
1 6 11 16 21 26
time ( 5-year periods )
annu
al h
arve
st (
mm
bf)
fmp ~ hcp
fmp ~ ta
wood emphasis
reserve-based
complex structure percentage
0%
10%
20%
30%
40%
50%
60%
70%
1 6 11 16 21 26
time ( 5 year periods )
% c
ompl
ex
fmp ~ hcp
fmp ~ ta
wood emphasis
reserve-based
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MB&G & ODF 19
Improvements for next time
• FVS– Thinning: clumpy v. uniform – Growth: genetic gain– Silviculture: Young stand and small tree growth
• ODF– Decay Model: Track snag and down wood components– Reprod
• SBM– Structure definition: thresholds v. similarity coefficient
• Inventory– Yield projections: stand v. strata