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10 Cards in this Set
- Front
- Back
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Name the trees found on the west side of a mountain in our area.
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Redwoods, higher in elevation are firs, and then logepole pines.
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Name the trees found on the east side of a mountain in our area.
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Highest in elevation are spruces, then firs, lodgepole pines, douglas fir and ponderosa pines, and pinion junipers are at the bottom.
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What is found in the basin of a mountainous area? In the valley?
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Basin - sagebrush
Valley - Oak Savannah |
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What tree type is more dominant in the southwestern coastal states (OR, CA, and WA), red fir or lodgepole pine?
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Red Fir
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Pre 1990
What was the fire return interval of red fir? Why? |
21-65 years, lots of ignition sources, west slope of Sierras and cascades, lightining strikes common as are massive thunderstorms
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Pre 1990
What was the fire return interval of lodgepole pine? Why? |
60-80 years, higher elevation, few thunderstorms
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Pre 1990
Did the Red Fir have high ignition or low? large area burned or small? why? what type of pattern did it make? would this change with a warmer climate? |
High ignition, small area burned because of cool moist climate, fine-grained mosiac with multiple aged stands in a small area. Could become coarse grained mosiac with an increase in temperature as projedeny creates ladder fuels.
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Pre 1990
What types of fires occured in the LP area and what were their size? Name a trigger for a larger stand replacing fire? What pattern were the fires? |
Duff fires (small, smouldering fires), with large areas burned. Bark beetle infestations create trigger, coarse grained mosiac with one aged stand over a large area.
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Present Day
Are Red Firs shad tolerant or sun loving? What happens to them with fire suppression? Does it respond well to harvest? If so, what kind, specifically? |
Shade tolerant tree, root diseases, mistletoe and stagnant stands occur with fire suppression. It repsonds well to harvest (unlike oak), but it must be UNEVEN.
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Present Day
Is this tree shade tolorant or sun loving? What happens with fire suppression? Does it respond well to harvest? If so, what kind? |
Shade intolorant, root diseases and mistletoe show up with fire suppression. Responds well to harvest if it is shelterwood or patch cuts (leave big trees to shelter area or clear a small patch of trees out).
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