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11 Cards in this Set
- Front
- Back
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when is stump cruising done (2) |
-when unauthorized timber harvesting occurs -need to determine how much volume has been removed |
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4 possible stump cruising scenarios |
-tree laying on ground -trees on ground and bucked -trees hauled away and scaled -trees hauled away and area stumped (agri clearing) |
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3 measurement methods of stump cruise |
1: -less that 10 ha 2: more than 10 ha 3: adjacent data |
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for method 1 less that 10 ha describe measurements methods (2) |
-conduct 100% cruise if trees full length -use scaling procedures if bucked trees |
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for method 2 more that 10 ha describe measurements methods (4) |
-cruise to a sampling error of 8% -cruise to a 95% confidence level -use 11.28m radius plot -if cant get 8% SE establish plots at 10% of area |
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for method 3 more that 10 ha describe measurements methods (1) |
-use adjacent tree information to represent stump into |
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tree heights measuring methods for stump cruising if tree is lying on grounds and if removed form site (2) |
-if tree lying on ground: measure DBH and height -trees removed from site: measure stump diameters and sample tree for heights |
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cruise tally sheet cruise card types (3) |
2 3 9 |
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what are these card types: 2 3 9 |
-2: individual tree -3: sample tree details -9: plot record card |
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Height DBH regression programme includes (6) |
-parabola -conditioned parabola -hyperbola -conditioned hyperbola -weiull -conditioned weibull |
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how to stump cruise if all stumps removed (3) |
- cruise adjacent area -use adjacent cruise info -use aerial photos to estimate |
