prescribed fire: improving our understanding and … fire: improving our understanding and use of an...
TRANSCRIPT
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Prescribed Fire: Improving Our Understanding and Use of an
Imperfect Tool
Mechanical Shrub/Tree Removal Preceding Re-Introduction of Fire to
Grasslands and Savannas
Joel KemmUSFWS Fire Management Specialist
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Completed Restoration
Prairie Grasslands
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Prairie Grasslands
Prairie Grasslands
Completed Restoration
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Oak Savanna
Completed Restoration
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Oak Savanna
Completed Restoration
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What to do?
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1. Logging Phase
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Logging Considerations
• Biomass utilization?• Winter vs summer• Tracks vs tires• Choose your logger wisely• Tree length skidding/chipping• Protect designated species/ wetlands, etc• Remove undesireable trees 2” dbh and larger• Stumps cut to <3” where practicable to facilitate
subsequent restoration efforts (Hotsaws & shears)• Choose your battle – be prepared to battle re-sprouting• Blowdown
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Post-Logging
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2. Machine Piling Phase
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Machine Piling Phase
• Optional but un-piled slash may be problematic with fire or other follow-up treatments
• Low ground pressure
• Tracks vs tires
• keep dirt out of piles
• Firewood utilization
• Rehab pile burn areas
• Snow – piles can remain in smolder stage for very long time
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Post-Machine Piling
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Post-Machine Piling
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4. Brush Grinding Phase
Photo Courtesy of Lawson Ridge Native Landscaping
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Brush Grinding Phase
• Conscientious operator mandatory
• Low ground pressure
• Low height to work under tree limbs (savanna)
• Articulated to work around trees
• Mulching vs rotary mower (chips vs shreds)
• Machine pile first to minimize mulch layer
• Horsepower - more is often better
• Might be able to grind stumps on firelines
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Post Brush-Grinding
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5. Seeding Phase
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Seeding Phase
• May not be necessary
• Erosion control
• Increase surface fuels to re-introduce fire ASAP – essential to abate woody re-sprouting and stimulate prairie grasses/forbs
• Seed source?
• Temporary vs desired condition
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6. Chemical Application Phase
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Chemical Application Phase
• May not be necessary but plan for the worst
• Choose contractor wisely
• Proper chemicals and application rates
• May require multi-year treatments until surface fire intensity is adequate
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Post-Chemical Application
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Post-Chemical Application
Aspen basal-bark treated previous winter
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2008
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2008
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2014
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Joel KemmUSFWS Fire Management Specialist
715-781-2893
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CURRENT PROJECTS
Kostka WPA – Fall 2008/Now
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CURRENT PROJECTS
Kostka WPA – Fall 2008/Now