. Natural reforestation on a mile-square clearcut in southeast Alaska / by Harris. Forest regeneration Alaska; Cutover lands Alaska. Seedlings were counted on 1-milacre circular plots and listed in three classes: Seedlings that germinated before the stand was harvested and that survived logging were called advanced; those that germinated after logging were called subsequent; within the latter group, seedlings less than 1 year old were listed separately. In 1962, cover type or ground conditions were described on each plot that contained no seed- lings. In addition to stocking percent measu
. Natural reforestation on a mile-square clearcut in southeast Alaska / by Harris. Forest regeneration Alaska; Cutover lands Alaska. Seedlings were counted on 1-milacre circular plots and listed in three classes: Seedlings that germinated before the stand was harvested and that survived logging were called advanced; those that germinated after logging were called subsequent; within the latter group, seedlings less than 1 year old were listed separately. In 1962, cover type or ground conditions were described on each plot that contained no seed- lings. In addition to stocking percent measured on 1-milacre plots, stocking was also determined on 4-milacre circular plots located at each 1-milacre plot location. The height and species of the dominant seedling on each 4-milacre plot were recorded. To provide information on seed dispersal, 48 seedtraps (2 feet by 3 feet) were installed on the cutting unit during August 1956 (fig. 3). Traps were placed in pairs, 33 feet apart, at 5-chain intervals for a distance of 1 mile from the upper timber edge in a southwesterly direc- tion beginning 5 chains from timber (fig. 2). Another line of paired traps with the same spac- ing was placed in a southeasterly direction, beginning 5 chains from the west timber edge. Four seedtraps were placed in adjacent uncut timber. Traps were examined annually. To in- sure that seed came only from outside the cut- ting unit, residual trees of seed-bearing age left within the cutting unit were either felled or poisoned before seed ripened in Figure 3.—Box-fype seedtrap used to determine seed dispersal distance. Mile-square cutting unit, Maybeso Experimental Forest. 3. 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 Harris, A. S. cn. Juneau, Alaska : Pacific Northwest Forest and Range Experiment Station, Forest Serv
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