. Natural reforestation on a mile-square clearcut in southeast Alaska / by Harris. Forest regeneration Alaska; Cutover lands Alaska. fall occurred, the test confirmed previous ob- servations that cones open during clear, cold weather. In southeast Alaska, northerly winds are generally associated with periods of dry weather, although local wind direction may be modified greatly by topography. SUBSEQUENT SEEDLING GERMINATION AND EARLY SURVIVAL The effect of seedbed and drainage condi- tions on germination and early survival was noted on seven seedbed types and two drainage classes (table 3)
. Natural reforestation on a mile-square clearcut in southeast Alaska / by Harris. Forest regeneration Alaska; Cutover lands Alaska. fall occurred, the test confirmed previous ob- servations that cones open during clear, cold weather. In southeast Alaska, northerly winds are generally associated with periods of dry weather, although local wind direction may be modified greatly by topography. SUBSEQUENT SEEDLING GERMINATION AND EARLY SURVIVAL The effect of seedbed and drainage condi- tions on germination and early survival was noted on seven seedbed types and two drainage classes (table 3). Seedlings germinating in 1957 were from sown seed and natural seedfall, whereas those germinating in 1958 were from natural seedfall alone. Imperfectly drained mineral soil offered the best seedbed for establishment and early sur- vival of both hemlock and spruce. During the abnormally hot and dry summer of 1958, partial shade offered by moderate slash appeared to aid seedling establishment. The additional moisture offered by imperfectly drained seed- beds was especially helpful for seedling es- tablishment during this dry season, and few seedlings became established on well-drained Figure 5.— Time of seed dispersal—October through December T959. Moybeso Experimental 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 Service, U. S. Dept. of Agriculture
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Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
