Presentation is loading. Please wait.

Presentation is loading. Please wait.

MB&G & ODF1 Using FVS to Develop and Test Structure Based Management Pam Overhulser, ODF Mark Rasmussen, MB&G 2/14/07 FVS Conference.

Similar presentations


Presentation on theme: "MB&G & ODF1 Using FVS to Develop and Test Structure Based Management Pam Overhulser, ODF Mark Rasmussen, MB&G 2/14/07 FVS Conference."— Presentation transcript:

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

2 MB&G & ODF2 Outline What is the planning problem? How does FVS fit into the planning system? How was FVS used? Improvements

3 MB&G & ODF3 ODF planning area 632,000 acres –High site –Fire history –Ownership history ODF structure –Seven districts –Foresters and managers, long tenure in place

4 MB&G & ODF4 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

5 MB&G & ODF5 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

6 MB&G & ODF6 Analytical process

7 MB&G & ODF7 H&H Model Grow Stands Schedule harvest unitsOperationally feasible solution

8 MB&G & ODF8 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

9 MB&G & ODF9 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

10 MB&G & ODF10 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

11 MB&G & ODF11 Using FVS: Calibrate FVS

12 MB&G & ODF12 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 specs District Astoria Elliott Log Length 4032 Minimum Top DIB 5 5 Trim Allowance Stump Height 1 1 Minimum Log Length Minimum DBH 8 8 Defect by age

13 MB&G & ODF13 Using FVS: Define structure classes

14 MB&G & ODF14 Using FVS: Develop thinning specs ODF financing, Auto Mark thinning contracts, 10 years of sales

15 MB&G & ODF15 Using FVS: Define a set of regimes

16 MB&G & ODF16 Using FVS: Make and evaluate yields YTG Tools

17 MB&G & ODF17

18 MB&G & ODF18 Planning results

19 MB&G & ODF19 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


Download ppt "MB&G & ODF1 Using FVS to Develop and Test Structure Based Management Pam Overhulser, ODF Mark Rasmussen, MB&G 2/14/07 FVS Conference."

Similar presentations


Ads by Google