Biomass and stand characteristics of a highly productive mixed douglas-fir and western hemlock plantation in coastal Washington
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1093/wjaf/24.4.180 http://hdl.handle.net/11449/225735 |
Resumo: | Aboveground biomass predictive equations were developed for a highly productive 47-year-old mixed Douglas-fir and western hemlock stand in southwest Washington State to characterize the preharvest stand attributes for the Fall River Long-Term Site Productivity Study. The equations were developed using detailed biomass data taken from 31 Douglas-fir and 11 western hemlock trees within the original stand. The stand had an average of 615 live trees per hectare, with an average dbh of 35.6 cm (39.1 cm for Douglas-fir and 33.3 cm for western hemlock) and an average total tree height of 31.6 m (32.8 m for Douglas-fir and 30.2 m for western hemlock). Equations developed were of the form ln Y = b1 + b2 ln dbh, where Y = biomass in kg, dbh = diameter in cm at 1.3 m height, b1 = intercept, and b2 = slope of equation. Each tree part was estimated separately and also combined into total aboveground biomass. The total aboveground biomass estimation equations were ln Y=-0.9950 + 2.0765 ln dbh for Douglas-fir, and ln Y=-1.6612 + 2.2321 ln dbh for western hemlock. The estimate of the aboveground live-tree biomass was of 395 Mg ha-1 (235 Mg ha-1 for Douglas-fir and 160 Mg ha-1 for western hemlock), with 9.5, 29.3, 12.9, 308, and 32.7 Mg ha-1 in the foliage, live branches, dead branches, stem wood, and stem bark, respectively. When compared with biomass estimates from six other studies, ranging in age from 22 to 110 years and from 96.3 to 636 Mg ha-1, the biomass of the Fall River site was relatively high for its age, indicating very high productivity. Copyright © 2009 by the Society of American Foresters. |
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Biomass and stand characteristics of a highly productive mixed douglas-fir and western hemlock plantation in coastal WashingtonEven-aged standsPacific northwestPrediction equationsAboveground biomass predictive equations were developed for a highly productive 47-year-old mixed Douglas-fir and western hemlock stand in southwest Washington State to characterize the preharvest stand attributes for the Fall River Long-Term Site Productivity Study. The equations were developed using detailed biomass data taken from 31 Douglas-fir and 11 western hemlock trees within the original stand. The stand had an average of 615 live trees per hectare, with an average dbh of 35.6 cm (39.1 cm for Douglas-fir and 33.3 cm for western hemlock) and an average total tree height of 31.6 m (32.8 m for Douglas-fir and 30.2 m for western hemlock). Equations developed were of the form ln Y = b1 + b2 ln dbh, where Y = biomass in kg, dbh = diameter in cm at 1.3 m height, b1 = intercept, and b2 = slope of equation. Each tree part was estimated separately and also combined into total aboveground biomass. The total aboveground biomass estimation equations were ln Y=-0.9950 + 2.0765 ln dbh for Douglas-fir, and ln Y=-1.6612 + 2.2321 ln dbh for western hemlock. The estimate of the aboveground live-tree biomass was of 395 Mg ha-1 (235 Mg ha-1 for Douglas-fir and 160 Mg ha-1 for western hemlock), with 9.5, 29.3, 12.9, 308, and 32.7 Mg ha-1 in the foliage, live branches, dead branches, stem wood, and stem bark, respectively. When compared with biomass estimates from six other studies, ranging in age from 22 to 110 years and from 96.3 to 636 Mg ha-1, the biomass of the Fall River site was relatively high for its age, indicating very high productivity. Copyright © 2009 by the Society of American Foresters.Soil and Environment Sciences Forest Resources University of Washington Box 352100, Seattle, WA 98195-2100Department of Biological Sciences University of Denver, Denver, CO 80208USAID Regional Development Mission for Asia Regional Environment Office, 93/1 Wireless Road, Bangkok 10330Western Forestry Research Weyerhauser Company, Centralia, WA 98513Faculdade de Ciencias Agronomicas Dep. de Ciencias do Solo UNESP, 18600-000 Botucatu-SP, BrasilDepartment of Ecology and Evolutionary Biology Cornell University, E343 Corson Hall, Ithaca, NY 14853College of Forest Resources University of Washington, Box 352100, Seattle, WA 98195-2100The Nature Conservancy, 1001 West Yakima Ave., Yakima, WA 98902Philips US Fleet, 22100 Bothell Everett Highway, Bothell, WA98021Faculdade de Ciencias Agronomicas Dep. de Ciencias do Solo UNESP, 18600-000 Botucatu-SP, BrasilBox 352100University of DenverRegional Environment OfficeWeyerhauser CompanyUniversidade Estadual Paulista (UNESP)Cornell UniversityUniversity of WashingtonThe Nature ConservancyPhilips US FleetHarrison, Robert B.Terry, Thomas A.Licata, Christopher W.Flaming, Barry L.Meade, RodGuerrini, Irae A. [UNESP]Strahm, Brian D.Xue, DongsenLolley, M. ReeseSidell, Amy R.Wagoner, Gage L.Briggs, DavidTurnblom, Eric C.2022-04-28T20:59:27Z2022-04-28T20:59:27Z2009-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article180-186http://dx.doi.org/10.1093/wjaf/24.4.180Western Journal of Applied Forestry, v. 24, n. 4, p. 180-186, 2009.0885-6095http://hdl.handle.net/11449/22573510.1093/wjaf/24.4.1802-s2.0-73949119887Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengWestern Journal of Applied Forestryinfo:eu-repo/semantics/openAccess2024-04-30T19:28:30Zoai:repositorio.unesp.br:11449/225735Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-04-30T19:28:30Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Biomass and stand characteristics of a highly productive mixed douglas-fir and western hemlock plantation in coastal Washington |
title |
Biomass and stand characteristics of a highly productive mixed douglas-fir and western hemlock plantation in coastal Washington |
spellingShingle |
Biomass and stand characteristics of a highly productive mixed douglas-fir and western hemlock plantation in coastal Washington Harrison, Robert B. Even-aged stands Pacific northwest Prediction equations |
title_short |
Biomass and stand characteristics of a highly productive mixed douglas-fir and western hemlock plantation in coastal Washington |
title_full |
Biomass and stand characteristics of a highly productive mixed douglas-fir and western hemlock plantation in coastal Washington |
title_fullStr |
Biomass and stand characteristics of a highly productive mixed douglas-fir and western hemlock plantation in coastal Washington |
title_full_unstemmed |
Biomass and stand characteristics of a highly productive mixed douglas-fir and western hemlock plantation in coastal Washington |
title_sort |
Biomass and stand characteristics of a highly productive mixed douglas-fir and western hemlock plantation in coastal Washington |
author |
Harrison, Robert B. |
author_facet |
Harrison, Robert B. Terry, Thomas A. Licata, Christopher W. Flaming, Barry L. Meade, Rod Guerrini, Irae A. [UNESP] Strahm, Brian D. Xue, Dongsen Lolley, M. Reese Sidell, Amy R. Wagoner, Gage L. Briggs, David Turnblom, Eric C. |
author_role |
author |
author2 |
Terry, Thomas A. Licata, Christopher W. Flaming, Barry L. Meade, Rod Guerrini, Irae A. [UNESP] Strahm, Brian D. Xue, Dongsen Lolley, M. Reese Sidell, Amy R. Wagoner, Gage L. Briggs, David Turnblom, Eric C. |
author2_role |
author author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Box 352100 University of Denver Regional Environment Office Weyerhauser Company Universidade Estadual Paulista (UNESP) Cornell University University of Washington The Nature Conservancy Philips US Fleet |
dc.contributor.author.fl_str_mv |
Harrison, Robert B. Terry, Thomas A. Licata, Christopher W. Flaming, Barry L. Meade, Rod Guerrini, Irae A. [UNESP] Strahm, Brian D. Xue, Dongsen Lolley, M. Reese Sidell, Amy R. Wagoner, Gage L. Briggs, David Turnblom, Eric C. |
dc.subject.por.fl_str_mv |
Even-aged stands Pacific northwest Prediction equations |
topic |
Even-aged stands Pacific northwest Prediction equations |
description |
Aboveground biomass predictive equations were developed for a highly productive 47-year-old mixed Douglas-fir and western hemlock stand in southwest Washington State to characterize the preharvest stand attributes for the Fall River Long-Term Site Productivity Study. The equations were developed using detailed biomass data taken from 31 Douglas-fir and 11 western hemlock trees within the original stand. The stand had an average of 615 live trees per hectare, with an average dbh of 35.6 cm (39.1 cm for Douglas-fir and 33.3 cm for western hemlock) and an average total tree height of 31.6 m (32.8 m for Douglas-fir and 30.2 m for western hemlock). Equations developed were of the form ln Y = b1 + b2 ln dbh, where Y = biomass in kg, dbh = diameter in cm at 1.3 m height, b1 = intercept, and b2 = slope of equation. Each tree part was estimated separately and also combined into total aboveground biomass. The total aboveground biomass estimation equations were ln Y=-0.9950 + 2.0765 ln dbh for Douglas-fir, and ln Y=-1.6612 + 2.2321 ln dbh for western hemlock. The estimate of the aboveground live-tree biomass was of 395 Mg ha-1 (235 Mg ha-1 for Douglas-fir and 160 Mg ha-1 for western hemlock), with 9.5, 29.3, 12.9, 308, and 32.7 Mg ha-1 in the foliage, live branches, dead branches, stem wood, and stem bark, respectively. When compared with biomass estimates from six other studies, ranging in age from 22 to 110 years and from 96.3 to 636 Mg ha-1, the biomass of the Fall River site was relatively high for its age, indicating very high productivity. Copyright © 2009 by the Society of American Foresters. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-01-01 2022-04-28T20:59:27Z 2022-04-28T20:59:27Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1093/wjaf/24.4.180 Western Journal of Applied Forestry, v. 24, n. 4, p. 180-186, 2009. 0885-6095 http://hdl.handle.net/11449/225735 10.1093/wjaf/24.4.180 2-s2.0-73949119887 |
url |
http://dx.doi.org/10.1093/wjaf/24.4.180 http://hdl.handle.net/11449/225735 |
identifier_str_mv |
Western Journal of Applied Forestry, v. 24, n. 4, p. 180-186, 2009. 0885-6095 10.1093/wjaf/24.4.180 2-s2.0-73949119887 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Western Journal of Applied Forestry |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
180-186 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1799964906633560064 |