Wedge prism
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==General description and handling== | ==General description and handling== | ||
The wedge prism is a small honed glass plate that is used to make an [[Bitterlich sampling|angle count sample]]. You can estimate basal area factors of ½, 1, 2 or 4. | The wedge prism is a small honed glass plate that is used to make an [[Bitterlich sampling|angle count sample]]. You can estimate basal area factors of ½, 1, 2 or 4. | ||
− | The observer can do an [[angle count sample]] while he moves around the prism – and the prism is still located at the centre point of the plot. | + | The observer can do an [[Bitterlich sampling|angle count sample]] while he moves around the prism – and the prism is still located at the centre point of the plot. |
<gallery width=300px height=300px> | <gallery width=300px height=300px> | ||
[[file:wedge_prism1.jpg| Tree is included in the sample]] | [[file:wedge_prism1.jpg| Tree is included in the sample]] |
Revision as of 10:15, 13 June 2012
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This section is still under construction! This article was last modified on 06/13/2012. If you have comments please use the Discussion page or contribute to the article! |
General description and handling
The wedge prism is a small honed glass plate that is used to make an angle count sample. You can estimate basal area factors of ½, 1, 2 or 4. The observer can do an angle count sample while he moves around the prism – and the prism is still located at the centre point of the plot.
Advantages | Disadvantages |
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independence of power sources (no batteries needed) | no digital storage of measurement results available. |