Biomass equations for forest regrowth in the eastern Amazon using randomized branch sampling
Forest regrowth occupies an extensive and increasing area in the Amazon basin, but accurate assessment of the impact of regrowth on carbon and nutrient cycles has been hampered by a paucity of available allometric equations. We develop pooled and species-specific equations for total aboveground biomass for a study site in the eastern Amazon that had been abandoned for 15 years. Field work was conducted using randomized branch sampling, a rapid technique that has seen little use in tropical forests. High consistency of sample paths in randomized branch sampling, as measured by the standard error of individual paths (14%), suggests the method may provide substantial efficiencies when compared to traditional procedures. The best fitting equations in this study used the traditional form Y=a×DBHb, where Y is biomass, DBH is diameter at breast height, and a and b are both species-specific parameters. Species-specific equations of the form Y=a(BA×H), where Y is biomass, BA is tree basal area, H is tree height, and a is a species-specific parameter, fit almost as well. Comparison with previously published equations indicated errors from -33% to +29% would have occurred using off-site relationships. We also present equations for stemwood, twigs, and foliage as biomass components.
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Brasil Instituto Nacional de Pesquisas da Amazônia
2009
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| Subjects: | BIOMASA, BOSQUE TROPICAL, MUESTREO, MODELOS, ALOMETRIA, CICLO DEL CARBONO, ARBOLES, ESPECIES, MEDICION, ALTURA, DIAMETRO A LA ALTURA DE PECHO, ECUACIONES ALOMETRICAS, BIOMASA AEREA, REGENERACION, NUTRIENTES, ALLOMETRY, ALLOMETRIC EQUATIONS, SECONDARY GROWTH, TROPICAL FOREST, EQUAÇÕES ALOMÉTRICAS, CRESCIMENTO SECUNDÁRIO, FLORESTA TROPICAL, |
| Online Access: | http://orton.catie.ac.cr/repdoc/A11163i/A11163i.pdf https://acta.inpa.gov.br/fasciculos/39-2/PDF/v39n2a13.pdf |
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BIOMASA BOSQUE TROPICAL MUESTREO MODELOS ALOMETRIA CICLO DEL CARBONO ARBOLES ESPECIES MEDICION ALTURA DIAMETRO A LA ALTURA DE PECHO ECUACIONES ALOMETRICAS BIOMASA AEREA REGENERACION NUTRIENTES ALLOMETRY ALLOMETRIC EQUATIONS SECONDARY GROWTH TROPICAL FOREST ALOMETRIA EQUAÇÕES ALOMÉTRICAS CRESCIMENTO SECUNDÁRIO FLORESTA TROPICAL BIOMASA BOSQUE TROPICAL MUESTREO MODELOS ALOMETRIA CICLO DEL CARBONO ARBOLES ESPECIES MEDICION ALTURA DIAMETRO A LA ALTURA DE PECHO ECUACIONES ALOMETRICAS BIOMASA AEREA REGENERACION NUTRIENTES ALLOMETRY ALLOMETRIC EQUATIONS SECONDARY GROWTH TROPICAL FOREST ALOMETRIA EQUAÇÕES ALOMÉTRICAS CRESCIMENTO SECUNDÁRIO FLORESTA TROPICAL |
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BIOMASA BOSQUE TROPICAL MUESTREO MODELOS ALOMETRIA CICLO DEL CARBONO ARBOLES ESPECIES MEDICION ALTURA DIAMETRO A LA ALTURA DE PECHO ECUACIONES ALOMETRICAS BIOMASA AEREA REGENERACION NUTRIENTES ALLOMETRY ALLOMETRIC EQUATIONS SECONDARY GROWTH TROPICAL FOREST ALOMETRIA EQUAÇÕES ALOMÉTRICAS CRESCIMENTO SECUNDÁRIO FLORESTA TROPICAL BIOMASA BOSQUE TROPICAL MUESTREO MODELOS ALOMETRIA CICLO DEL CARBONO ARBOLES ESPECIES MEDICION ALTURA DIAMETRO A LA ALTURA DE PECHO ECUACIONES ALOMETRICAS BIOMASA AEREA REGENERACION NUTRIENTES ALLOMETRY ALLOMETRIC EQUATIONS SECONDARY GROWTH TROPICAL FOREST ALOMETRIA EQUAÇÕES ALOMÉTRICAS CRESCIMENTO SECUNDÁRIO FLORESTA TROPICAL 63516 Ducey, Mark Jonathan Professor da Universidade de New Haspshire 133136 Zarin, Daniel Jacob (autor/a) Professor da Universidade da Flórida 127324 Vanconcelos, Steel Silva (autor/a) Pesquisador da Embrapa Amazônia Oriental 43651 Araújo, Maristela Machado (autor/a) Professora da Universidade federal de Santa María Biomass equations for forest regrowth in the eastern Amazon using randomized branch sampling |
| description |
Forest regrowth occupies an extensive and increasing area in the Amazon basin, but accurate assessment of the impact of regrowth on carbon and nutrient cycles has been hampered by a paucity of available allometric equations. We develop pooled and species-specific equations for total aboveground biomass for a study site in the eastern Amazon that had been abandoned for 15 years. Field work was conducted using randomized branch sampling, a rapid technique that has seen little use in tropical forests. High consistency of sample paths in randomized branch sampling, as measured by the standard error of individual paths (14%), suggests the method may provide substantial efficiencies when compared to traditional procedures. The best fitting equations in this study used the traditional form Y=a×DBHb, where Y is biomass, DBH is diameter at breast height, and a and b are both species-specific parameters. Species-specific equations of the form Y=a(BA×H), where Y is biomass, BA is tree basal area, H is tree height, and a is a species-specific parameter, fit almost as well. Comparison with previously published equations indicated errors from -33% to +29% would have occurred using off-site relationships. We also present equations for stemwood, twigs, and foliage as biomass components. |
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BIOMASA BOSQUE TROPICAL MUESTREO MODELOS ALOMETRIA CICLO DEL CARBONO ARBOLES ESPECIES MEDICION ALTURA DIAMETRO A LA ALTURA DE PECHO ECUACIONES ALOMETRICAS BIOMASA AEREA REGENERACION NUTRIENTES ALLOMETRY ALLOMETRIC EQUATIONS SECONDARY GROWTH TROPICAL FOREST ALOMETRIA EQUAÇÕES ALOMÉTRICAS CRESCIMENTO SECUNDÁRIO FLORESTA TROPICAL |
| author |
63516 Ducey, Mark Jonathan Professor da Universidade de New Haspshire 133136 Zarin, Daniel Jacob (autor/a) Professor da Universidade da Flórida 127324 Vanconcelos, Steel Silva (autor/a) Pesquisador da Embrapa Amazônia Oriental 43651 Araújo, Maristela Machado (autor/a) Professora da Universidade federal de Santa María |
| author_facet |
63516 Ducey, Mark Jonathan Professor da Universidade de New Haspshire 133136 Zarin, Daniel Jacob (autor/a) Professor da Universidade da Flórida 127324 Vanconcelos, Steel Silva (autor/a) Pesquisador da Embrapa Amazônia Oriental 43651 Araújo, Maristela Machado (autor/a) Professora da Universidade federal de Santa María |
| author_sort |
63516 Ducey, Mark Jonathan Professor da Universidade de New Haspshire |
| title |
Biomass equations for forest regrowth in the eastern Amazon using randomized branch sampling |
| title_short |
Biomass equations for forest regrowth in the eastern Amazon using randomized branch sampling |
| title_full |
Biomass equations for forest regrowth in the eastern Amazon using randomized branch sampling |
| title_fullStr |
Biomass equations for forest regrowth in the eastern Amazon using randomized branch sampling |
| title_full_unstemmed |
Biomass equations for forest regrowth in the eastern Amazon using randomized branch sampling |
| title_sort |
biomass equations for forest regrowth in the eastern amazon using randomized branch sampling |
| publisher |
Brasil Instituto Nacional de Pesquisas da Amazônia |
| publishDate |
2009 |
| url |
http://orton.catie.ac.cr/repdoc/A11163i/A11163i.pdf https://acta.inpa.gov.br/fasciculos/39-2/PDF/v39n2a13.pdf |
| work_keys_str_mv |
AT 63516duceymarkjonathanprofessordauniversidadedenewhaspshire biomassequationsforforestregrowthintheeasternamazonusingrandomizedbranchsampling AT 133136zarindanieljacobautoraprofessordauniversidadedaflorida biomassequationsforforestregrowthintheeasternamazonusingrandomizedbranchsampling AT 127324vanconcelossteelsilvaautorapesquisadordaembrapaamazoniaoriental biomassequationsforforestregrowthintheeasternamazonusingrandomizedbranchsampling AT 43651araujomaristelamachadoautoraprofessoradauniversidadefederaldesantamaria biomassequationsforforestregrowthintheeasternamazonusingrandomizedbranchsampling |
| _version_ |
1756066213654429696 |
| spelling |
KOHA-OAI-BVE:1361942022-08-02T12:27:06ZBiomass equations for forest regrowth in the eastern Amazon using randomized branch sampling 63516 Ducey, Mark Jonathan Professor da Universidade de New Haspshire 133136 Zarin, Daniel Jacob (autor/a) Professor da Universidade da Flórida 127324 Vanconcelos, Steel Silva (autor/a) Pesquisador da Embrapa Amazônia Oriental 43651 Araújo, Maristela Machado (autor/a) Professora da Universidade federal de Santa María textBrasil Instituto Nacional de Pesquisas da Amazônia2009engpdfpdfForest regrowth occupies an extensive and increasing area in the Amazon basin, but accurate assessment of the impact of regrowth on carbon and nutrient cycles has been hampered by a paucity of available allometric equations. We develop pooled and species-specific equations for total aboveground biomass for a study site in the eastern Amazon that had been abandoned for 15 years. Field work was conducted using randomized branch sampling, a rapid technique that has seen little use in tropical forests. High consistency of sample paths in randomized branch sampling, as measured by the standard error of individual paths (14%), suggests the method may provide substantial efficiencies when compared to traditional procedures. The best fitting equations in this study used the traditional form Y=a×DBHb, where Y is biomass, DBH is diameter at breast height, and a and b are both species-specific parameters. Species-specific equations of the form Y=a(BA×H), where Y is biomass, BA is tree basal area, H is tree height, and a is a species-specific parameter, fit almost as well. Comparison with previously published equations indicated errors from -33% to +29% would have occurred using off-site relationships. We also present equations for stemwood, twigs, and foliage as biomass components.Florestas secundárias ocupam uma área extensa e crescente na bacia Amazônica, porém determinações acuradas do impacto dessas florestas nos ciclos de carbono e nutrientes têm sido dificultadas pelo número reduzido de equações alométricas. Neste estudo, nós desenvolvemos equações em nível de comunidade e espécies individuais para estimar a biomassa total da parte aérea de uma floresta secundária com 15 anos de idade na Amazônia oriental. O trabalho de campo utilizou amostragem aleatória de ramos, que é uma técnica rápida, porém pouco utilizada em florestas tropicais. Baseada no erro padrão da série de segmentos individuais (14%), a consistência da série de segmentos totais amostrados foi considerada elevada, sugerindo que o método pode ser eficiente em comparação com procedimentos tradicionais. Os melhores ajustes foram obtidos com a equação tradicional Y=a×DBHb, onde Y é a biomassa, DBH é o diâmetro à altura do peito, e a e b são parâmetros para cada espécie arbórea. Ajustes razoáveis também foram alcançados com equações da forma Y=a(BA×H), onde Y é a biomassa, BA é a área basal, H é a altura e a é um parâmetro específico para cada espécie arbórea. Comparações com equações disponíveis na literatura indicaram uma faixa de erro provável de -33% a +29% usando-se relações desenvolvidas para outros sítios. Nós também apresentamos equações para os seguintes componentes da biomassa da parte aérea: tronco, ramos e folhas.25 referencias bibliográficas en la página 358.Forest regrowth occupies an extensive and increasing area in the Amazon basin, but accurate assessment of the impact of regrowth on carbon and nutrient cycles has been hampered by a paucity of available allometric equations. We develop pooled and species-specific equations for total aboveground biomass for a study site in the eastern Amazon that had been abandoned for 15 years. Field work was conducted using randomized branch sampling, a rapid technique that has seen little use in tropical forests. High consistency of sample paths in randomized branch sampling, as measured by the standard error of individual paths (14%), suggests the method may provide substantial efficiencies when compared to traditional procedures. The best fitting equations in this study used the traditional form Y=a×DBHb, where Y is biomass, DBH is diameter at breast height, and a and b are both species-specific parameters. Species-specific equations of the form Y=a(BA×H), where Y is biomass, BA is tree basal area, H is tree height, and a is a species-specific parameter, fit almost as well. Comparison with previously published equations indicated errors from -33% to +29% would have occurred using off-site relationships. We also present equations for stemwood, twigs, and foliage as biomass components.Florestas secundárias ocupam uma área extensa e crescente na bacia Amazônica, porém determinações acuradas do impacto dessas florestas nos ciclos de carbono e nutrientes têm sido dificultadas pelo número reduzido de equações alométricas. Neste estudo, nós desenvolvemos equações em nível de comunidade e espécies individuais para estimar a biomassa total da parte aérea de uma floresta secundária com 15 anos de idade na Amazônia oriental. O trabalho de campo utilizou amostragem aleatória de ramos, que é uma técnica rápida, porém pouco utilizada em florestas tropicais. Baseada no erro padrão da série de segmentos individuais (14%), a consistência da série de segmentos totais amostrados foi considerada elevada, sugerindo que o método pode ser eficiente em comparação com procedimentos tradicionais. Os melhores ajustes foram obtidos com a equação tradicional Y=a×DBHb, onde Y é a biomassa, DBH é o diâmetro à altura do peito, e a e b são parâmetros para cada espécie arbórea. Ajustes razoáveis também foram alcançados com equações da forma Y=a(BA×H), onde Y é a biomassa, BA é a área basal, H é a altura e a é um parâmetro específico para cada espécie arbórea. Comparações com equações disponíveis na literatura indicaram uma faixa de erro provável de -33% a +29% usando-se relações desenvolvidas para outros sítios. Nós também apresentamos equações para os seguintes componentes da biomassa da parte aérea: tronco, ramos e folhas.BIOMASABOSQUE TROPICALMUESTREO MODELOSALOMETRIACICLO DEL CARBONOARBOLESESPECIESMEDICIONALTURADIAMETRO A LA ALTURA DE PECHOECUACIONES ALOMETRICASBIOMASA AEREAREGENERACIONNUTRIENTESALLOMETRYALLOMETRIC EQUATIONSSECONDARY GROWTHTROPICAL FORESTALOMETRIAEQUAÇÕES ALOMÉTRICASCRESCIMENTO SECUNDÁRIOFLORESTA TROPICALhttp://orton.catie.ac.cr/repdoc/A11163i/A11163i.pdfhttps://acta.inpa.gov.br/fasciculos/39-2/PDF/v39n2a13.pdf |