Point-quarter, random-pairs, 0.004-ha-arm-length-rectangle, and 0.04-ha-circle methods for sampling density, diameters, and size categories were used in an oak-hickory (Quercus-Carya) woodlot. Results from three trials for each method were compared to actual density of trees determined from a total count of trees in the woodlot. With respect to accuracy per time spent, the 0.04-ha circle was the best method and the point-quarter method was the worst. These findings improve on previous studies because, for the first time, repeated trials in the field were employed.
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1 September 2009
Speed and Accuracy of Methods for Obtaining Measurements of Forests
C. Joan Patterson,
Douglas A. James
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The Southwestern Naturalist
Vol. 54 • No. 3
September 2009
Vol. 54 • No. 3
September 2009