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Snag Densities In Old Growth Stands On The Gasquet Ranger District Six Rivers National Forest California
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Book Synopsis Snag Densities in Old-growth Stands on the Gasquet Ranger District, Six Rivers National Forest, California by : Thomas Michael Jimerson
Download or read book Snag Densities in Old-growth Stands on the Gasquet Ranger District, Six Rivers National Forest, California written by Thomas Michael Jimerson and published by . This book was released on 1989 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Baseline levels for densities of snags (standing dead trees) wered etermined in undisturbed old-growth stands on the Gasquet Ranger District. Six Riven National Forest, California. Snag species, number, diameter at breast height (d.b.h.), height, cavity type, cavity use, decay class, and snag origin were recorded on 317 plots over a 2-year period. The 2121 snags recorded consisted of Pseudotsuga menziesii (36 percent), Abies concolor (29 perecnt), Abics mgnifica var. sharlemis (7 percent), Pinus lambertiana (4 percent), Chamaecyparis lawsonina (6 percent), hardwoods (10 percent), and other conifers combined (7 percent). Snags were categorized as large, medium or small. Large snags were characterized as snags 2 20 inches d.b.h. and 2 5 0 feet tall, the medium snags as snags 220 inches d.b.h. and 20-50 feet tall and the small snags as all other snags> 5 inches d.b.h. and 1 foot tall that did not qualify as large or medium snags. The snag densities for each category were then determined for each of the following conifer series: Lithocarpus densiforalPseudotsuga menziesii, Chamaecyparis lawsomina, Abies concolor and the Abies magnifica var. shastensis. The snag densities for all four series combined in each category were 2.07 large snags/acre, 1.94 medium snags/acre and 20.67 small snags/acre.
Book Synopsis Snag Densities in Old-growth Stands on the Gasquet Ranger District, Six Rivers National Forest, California by : Thomas M. Jimerson
Download or read book Snag Densities in Old-growth Stands on the Gasquet Ranger District, Six Rivers National Forest, California written by Thomas M. Jimerson and published by . This book was released on 1989 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Snag Densities in Old-growth Stands on the Gasquet Ranger District, Six Rivers National Forests, California by : Thomas M. Jimerson
Download or read book Snag Densities in Old-growth Stands on the Gasquet Ranger District, Six Rivers National Forests, California written by Thomas M. Jimerson and published by . This book was released on 1989 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seed Dissemination in Small Clearcuttings in North-central California by : Philip M. McDonald
Download or read book Seed Dissemination in Small Clearcuttings in North-central California written by Philip M. McDonald and published by . This book was released on 1980 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a 1964-1967 study on the Challenge Experimental Forest, seedfall was evaluated in 2-, 5-, and 10-acre circular clearcuttings. During the 4 years, 10 seed crops, ranging from light to bumper, were produced by ponderosa pine. white fir, Douglas-fir, and incense cedar. Seedfall ranged from 76 to 40,691 sound seed per acre (188 to 100,547/ha) for a single species in a given year. From 89 to 100 percent of each species' seed fell within an area 1 1/2 times the height of the average dominant tree. Overall, seed distribution was highly variable.
Book Synopsis Coos Bay District Area Resource(s) Management Plan (RMP) by :
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Book Synopsis Monthly Catalog of United States Government Publications by :
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Book Synopsis Monthly Catalogue, United States Public Documents by :
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Book Synopsis Proceedings of the Symposium on Biodiversity of Northwestern California by :
Download or read book Proceedings of the Symposium on Biodiversity of Northwestern California written by and published by . This book was released on 1992 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
