A Cruz All is used to measure the Basal Forest Stands using 5, 10, 20 or 40 English Basal Area Factor (BAF). The Cruz All gauge is die cut aluminum and has a 25" bead chain with a button at the end.

Jan 24, 2025 · In point sampling, foresters use tools (an angle gauge or prism gauge) designed to simultaneously measure the distance and diameter of a tree to judge whether that tree is representative of a given amount of basal area per acre, known as the basal area factor or BAF.

An angle gauge is a tool used by foresters to determine which trees to measure when using a variable radius plot design in forest inventory. Using this tool a forester can quickly measure the trees that are in or out of the plot.

You'll find the cruising tools you need from exact-factor prisms to basal area factor gauges. These measuring tools handle the densest timber situations. Choose clear or no-glare prisms with amber glass to eliminate glare while cruising.

To determine basal area on a per-acre basis, you can use an angle gauge of a known basal area factor (BAF). Using a known BAF, each tree measuring “in” on the angle gauge counts as one multiple of a predetermined BA. For example, using a BAF 10 angle gauge results in each “in” tree representing one multiple of 10 ft2/ac of BA.

Most woodland owners use a prism with a BAF scale between 20 and 40. Average tree diameter and prism BAF are directly proportional—as average tree diameter increases, prism BAF increases also. A rugged, hand-held instrument for measuring vertical angles such as ground slope, road grade, and tree height (Figure 2).

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You can also scribe the Metric BAF on each prism with an engraving tool – but Relascopes are an even better tool, so what scale should you use? The Metric CP is the newest of the scales, and in some ways superior to the older Metric Scale.

Measure the basal area forest stands using any of these English BAF’s: 5, 10, 20 or 40. Consists of an aluminum die-cut gauge and a 25” bead chain. To use, hold the button at the end of the chain in your teeth and extend the Cruz-All away from your eye until chain is taut.

Jul 11, 2016 · Do you recommend any tools to generate the LRR and BAF tags in the vcf? LRR ~ fold change i.e. log2 depth sample / depth other samples BAF = (ALT depth)/(Total depth)