Today’s topioc: Forest Health Issues Forest Health Defoliator Outbreaks How to determine
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Transcript of Today’s topioc: Forest Health Issues Forest Health Defoliator Outbreaks How to determine
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Today’s topioc:Forest Health Issues
• Forest Health• Defoliator Outbreaks
– How to determine– Scientific “control”– Timing, extent, patterns– Relationship with fire
• The real tree killers• Combined climate-human influence
on SW forestshttp://cpluhna.nau.edu/index.htm
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Forest Health• Do forests get “sick”? How?• Form
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Why Care About Healthy Forests?
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Spruce Budworm• -• -
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Current Outbreak
• Lots of dead trees
• Still have branches
• No fire char
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• Clumps of trees often succumb together
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• Inside the woods can be quite airy
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• One management strategy is ____________– -
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Geography• -
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Deep Time Past
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Scientific “Control”• “Treated”: -• “Control”: -
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1 site
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BarkBeetles
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Any fire effects?
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DwarfMistletoe
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Huge recruitment of ________________ in NM
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Late 1800s
1992
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A Grand Picture
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SW Forest Health Key Points• ------------------?
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Healthy Forest Act (2003)
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