. Changes in product recovery between live and dead lodgepole pine : a compendium. Lodgepole pine; Forests and forestry Economic aspects United States; Wood waste United States. Figure 5— Approximate location of individual study areas and types of products at each location. Methods Product recovery studies were conducted in six mills at five locations in the inter- mountain area (fig. 5). The same general techniques were used in all studies. In- dividual trees were selected, identified, and harvested. Logs were identified by tree and by position in the tree. At the mill, logs were scaled and d
. Changes in product recovery between live and dead lodgepole pine : a compendium. Lodgepole pine; Forests and forestry Economic aspects United States; Wood waste United States. Figure 5— Approximate location of individual study areas and types of products at each location. Methods Product recovery studies were conducted in six mills at five locations in the inter- mountain area (fig. 5). The same general techniques were used in all studies. In- dividual trees were selected, identified, and harvested. Logs were identified by tree and by position in the tree. At the mill, logs were scaled and during the processing each piece of lumber or veneer was identified by the log it came from. Product and log values were based on prices for surfaced dry lumber or dry trimmed veneer. Sample Selection and Trees were selected from each study area to sample the variation in diameter and Logging time since death. The distribution of sample logs or trees by type of mill, area, and tree condition is shown in table 2. Tree diameters from the two Oregon studies (stud and veneer mills) were slightly smaller than those sampled in Montana and Wyoming. In the Montana studies, logs from trees were allocated to two types of mills; therefore, diameter of logs rather than of trees is used in table 2. Recent dead trees (1-2 years) had either yellow-green or red needles; older dead (3 years plus) generally had few needles or none. In the Blue Mountains of eastern Oregon, stands killed 1 to 6 years earlier were sampled, and the date of mortality was determined from Ranger District records. In parts of Montana and Wyoming there was little recent mortality in the vicinity of the mill; therefore, getting an adequate sample of recently killed trees was not practical. The sample trees were sold to the cooperating mills and were logged following nor- mal practices in the area. Logs were tagged to identify the tree and the log posi- tion within the tree. 5. Please note that these images are extracted
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