. Lumber recovery from ponderosa in western Montana. Lumber; Ponderosa pine Montana. Diameter (inches) Figure 6.—Relationship of dollars per hundred cubic feet of log volume to diameter for each log grade, ponderosa pine. Statistical information: y (grade 1) = - (1/D). Coefficient of determination = Standard deviation from regression = y (grade 2) = Standard error of the mean = y (grade 3) = Standard error of the mean = y (grade 5) = - (1/D) + (1/D2). Coefficient of determination = Standard deviation from


. Lumber recovery from ponderosa in western Montana. Lumber; Ponderosa pine Montana. Diameter (inches) Figure 6.—Relationship of dollars per hundred cubic feet of log volume to diameter for each log grade, ponderosa pine. Statistical information: y (grade 1) = - (1/D). Coefficient of determination = Standard deviation from regression = y (grade 2) = Standard error of the mean = y (grade 3) = Standard error of the mean = y (grade 5) = - (1/D) + (1/D2). Coefficient of determination = Standard deviation from regression = y (dead) = Standard error of the mean = The board-foot-per-cubic-foot (BF/CF) ratio calculated from table 11 for the live logs on a basis of surfaced-dry lumber was By adding the cubic volume of shrinkage and planer shavings to the surfaced-dry cubic volume of lumber, the ratio can be computed on the basis of rough-green lumber—in this case, This ratio and the data obtained from similar publications and reports will allow comparisons of mill effi- ciency. Multiplying BF/CF ratio of by the cubic recovery percent (46) will equal the recovery factor for surfaced-dry Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Plank, Marlin E. cn; Pacific Northwest Forest and Range Experiment Station (Portland, Or. ) cn. Portland, Or. : Pacific Northwest Forest and Range Experiment Station, U. S. Dept. of Agriculture, Forest Service


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