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14 Cards in this Set
- Front
- Back
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site (of site index)
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=an area which is considered as to its ecological factors, with references to its capacity to produce forests or other vegetation
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prescribed burning
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-reduces fuel loads
-ecological substitute for wild fires |
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limitations of site index
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Site index only applies to:
a. pure stands b. even-aged stands c. not disturbed d. not much "in-stand" suppression |
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why use tree height over reference age?
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a. tree density not a factor within medium ranges
b. easily measured c. it is reproducable |
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problems with site index:
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a. stands must be properly identified
b. accurate measurements needed c. comparisons may not be fair d. aspects of value are not considered e. no consideration of climate change f. no info. for different species g. no account for genetic improvements h. is the curve realistic? |
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other measurers of site quality
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a. tree/understory associations
b. plant species c. soil characteristics d. landforms e. most common plant species f. rarest plant species |
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carrying capacity
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=measurement of site's ability to carry animals
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fire management activities
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1. fire prevention
2. fire detection 3. fire suppression 4. prescribed burning |
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reference ages
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=approximate age of trees that are able to be harvested
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1st curve
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- the middle of the distribution of variance in the growth potential
-is the best site - |
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PSP Permanent Sampling Point
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=used to study a specific site over a period of time which tells how tall a tree is and look at numerous trees in the same stand to get an average
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what do we need to know for AAC?
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-what the total volume is
-how inventory is distributed |
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what is the combination in a site?
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-it is the combination of biotic, climate, physiography, and soil and water conditions of the area
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why is site index the most commonly used measure in forestry?
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-simple
-easy |
