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Pete Holmberg - Early Seral Foresty: A State Trust Lands Perspective
Pete Holmberg - Early Seral Foresty: A State Trust Lands Perspective
Pete Holmberg - Early Seral Foresty: A State Trust Lands Perspective
Pete Holmberg - Early Seral Foresty: A State Trust Lands Perspective
Pete Holmberg - Early Seral Foresty: A State Trust Lands Perspective
Pete Holmberg - Early Seral Foresty: A State Trust Lands Perspective
Pete Holmberg - Early Seral Foresty: A State Trust Lands Perspective
Pete Holmberg - Early Seral Foresty: A State Trust Lands Perspective
Pete Holmberg - Early Seral Foresty: A State Trust Lands Perspective
Pete Holmberg - Early Seral Foresty: A State Trust Lands Perspective
Pete Holmberg - Early Seral Foresty: A State Trust Lands Perspective
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Pete Holmberg - Early Seral Foresty: A State Trust Lands Perspective

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Pete Holmberg - Early Seral Foresty: A State Trust Lands Perspective

Pete Holmberg - Early Seral Foresty: A State Trust Lands Perspective

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  • 1. Early Seral Forestry: A State Trust Lands Perspective “Keeping Common Species Common”
  • 2. Agenda
    • Policies
    • Planning as Related to Early Seral Stages
    • Silviculture & Other Disciplines
    • Examples
    • Techniques and Field Craft
    • Summary—The Process
  • 3. Policies
    • Tenets of The Trust Mandate
      • Prudent person doctrine
      • Undivided loyalty to the trusts
      • Intergenerational equity of benefits
      • Maintaining future options
    • WA-DNR’s Policy for Sustainable Forests
      • Forest land planning determines rotation age
      • Landscapes are issue driven
    • WA-DNR’s HCP
      • Multi-species — entire Endangered Species Act spectrum
      • Adaptive management based
    • Cohort Management
      • Enables managing single stands for multiple objectives
      • Identifies and manages objective-specific stand cohorts
      • Accounts for silvics of tree species
  • 4. Planning as Related to Early Seral Stages
    • Northern Spotted Owl—NSO Landscapes
      • Longer rotations—At least 50 percent of each landscape in structural stages
      • SO : Up to 50 percent of each landscape could be in early seral stands
    • General Ecological Management (GEM) Landscapes
      • Shorter rotations
      • Most of landscapes in competitive exclusion or earlier seral stages
    • KEY : Formulating and Integrating Objectives for:
      • Landscape
      • Unit-Rotation
      • Unit-Activity
  • 5. Techniques and Field Craft
    • At the Unit Scale: Cohort Management
      • Unit Rotational Objectives Represented by Distinct Stand Cohort(s)
      • Rotational Silvicultural Prescriptions (Chronology of Events—Over a Rotation—That Best Achieve Unit/Stand Objectives) Include Activities of:
        • Planting (early seral): mix shade tolerant and intolerant species
        • Variable Density Thinning (VDT): retains a portion of early seral
        • Variable Retention Final Harvest: around 15 percent left in late seral cohort aggregates; remainder is early seral
    • At the Landscape Scale:
      • Ample opportunities – accidental or not – for early seral habitat
      • Sustain between 30 and 60 percent of landscapes in early seral conditions, depending upon landscape objectives
  • 6.  
  • 7. Summary—the Process
    • Objectives for early seral management are defined and quantified by disciplines from whom concerns emanate
      • Unit-rotational scale
      • Landscape scale
    • Foresters devise unit-level rotational silvicultural prescriptions that best achieve unit-rotational objectives
    • Foresters define objective-specific stand cohorts and plan their presence on appropriate spatial and temporal scales
    • Activity objectives are drawn from rotational prescriptions with a focus on refinement of imminent activities
    • Landscapes are perpetuated in desired proportions of early and later seral stand conditions
  • 8.
    • Questions?
  • 9. Q&A Slides on --What is Silviculture? --Early Seral TTs in Older Forest Objectives
  • 10. Silviculture & Other Disciplines
    • “ . . . the art and science of cultivating forests to achieve objectives”
    • Thus, silviculture is the tool; it does not have its own objectives
    • Objectives at stand and landscape levels must be expressed by their associated disciplines (i.e., wildlife biologists, financial interests, etc.)
    • Objectives must be defined in terms of arrays of threshold targets i.e., discrete and measurable stand parameters
  • 11. Older Forest Objectives: Some Retention of Early Seral Conditions
    • Landscape : Sustain at least 50% of SOMU in sub-mature NSO habitat ( i.e., 50% of SOMU could be early seral stands )
    • Unit-Rotational : Attain sub-mature NSO habitat
      • Main canopy at least 30 percent conifer
      • Curtis’ RD > 50 for trees > 4 inches DBH
      • 115 to 270 trees per acre for trees > 4 inches DBH
      • Dominant and co-dominant trees > 85 feet in height
      • At least 3 snags or cavity trees per acre > 20 inches DBH
      • At least 5 percent of the ground covered with LDWD
    • Activity : VDT to average Curtis’ RD 45 for trees > 12 inches DBH
      • Vary RD by +/- 8 RD points over 85% of area on a scale of ½ to 5 acres
      • Create skips and gaps over 15% of area on a scale of ½ to 5 acres
      • Leave/create > 3 snags/ac > 20 inches DBH
      • Leave/create at least 5 percent ground cover of LDWD
      • Leave all bigleaf maple with 3 stems or less

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