Forest Service. Northeastern Research Station. Where decay left a hollow in the center of a disk, the position of the pith was ... Average disk and heartwood radii were computed as quadratic means (QMR) using the following equation: QMR=(( ri2+r22+r32+r42)/4)a#39;/2 where r, , r2, r3, and r4 are the ... Ninety-five percent confidence intervals were computed for differences between the Autocad and planimeteranbsp;...
|Title||:||Comparison of methods to determine disk and heartwood areas|
|Author||:||Michael Carl Wiemann, John P. Brown, Neal D. Bennett, United States. Forest Service. Northeastern Research Station|