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pin-frame


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  • Plant Sciences and Forestry
  • Ecology and Conservation

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A device for obtaining a quantitative estimate of vegetation cover. Pin-frames are typically made from lightweight wood, aluminium, or plastic and comprise a cross-bar with pin-holes supported on legs of adjustable height. The pin-frame is set up so that the cross-bar sits above the vegetation to be sampled. Pins are lowered through the pin-holes and the plants hit by the pin-tips are recorded. Where the vegetation is of variable height, records of top-cover (the first plant encountered by the pin) and bottom-cover may be taken. The pin diameter used will affect the results and must be standardized for comparative work.

Pin-frame

Subjects: Plant Sciences and Forestry — Ecology and Conservation.


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