. Field and computer techniques for stem analysis of coniferous forest trees. Conifers Physiology. Radial transverse sections and disks for each tree were packaged with fiber- glass tape. An identification tag bearing plot, tree number, species, and general location was attached to each package of radial transverse sections (fig. 9). Stem Analysis Laboratory and Computer Methods Annual-ring counts and sequential radial growth measurements not com- pleted in the field were made in the laboratory by the count plan selected. The sequential radial growth marks transcribed in the field to the plast
. Field and computer techniques for stem analysis of coniferous forest trees. Conifers Physiology. Radial transverse sections and disks for each tree were packaged with fiber- glass tape. An identification tag bearing plot, tree number, species, and general location was attached to each package of radial transverse sections (fig. 9). Stem Analysis Laboratory and Computer Methods Annual-ring counts and sequential radial growth measurements not com- pleted in the field were made in the laboratory by the count plan selected. The sequential radial growth marks transcribed in the field to the plastic overlays also were measured according to the selected count plan, and the data were entered on a coding form (fig. 11, appendix I). Data on the coding forms were keypunched on standard 80-column ADP cards. Sequential radial growth was measured with a 24-inch machinist rule graduated to the nearest hundredth of an inch except where annual rings were closely spaced. For transverse sections with rings very close together, a dendrochronograph equipped with a traveling binocular zoom microscope was used (fig. 10), and sequential radial growth was measured to the nearest hundredth of a millimeter. To correspond with ruler-measured data for our studies, metric information was converted to inches. For easier ring counts and measure- ments along representative radii, the wood surface on stem section disks or radial transverse sections was smoothed with a thin-bladed, chisel-edged, hobby- type razor-knife or was sanded with an electric sander. Sanding with very fine sandpaper usually was done only when narrow growth rings (about 40 or more per inch) were encountered. Douglass (1928) favored the razor-knife method of wood surface preparation over that of Fi. 15. 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 Herman
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