Reliability of Height and Diameter Remeasurements on Red Pine (Pinus resinosa Ait.) Seedlings
A study was conducted to determine the error associated with remeasurement of diameter and heights of red pine (Pinus resinosa Ait.) seedlings by the same and different observers. There were no significant differences between initial measurements and remeasurements of seedling height, either by the same or different observers. A major source of error in seedling diameter measurements is correct placement of the calipers on the stem. By marking the measurement point with an indelible felt-tip pen, the remeasurement error between two observers was significantly reduced.
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Author(s): James E. Johnson, Carl L. Haag
Publication: Tree Planters' Notes - Volumes 36, Number 2 (1985)
Section: General
Volume: 36
Number: 2
