Artigo

Biomass expansion factor and root-to-shoot ratio for Pinus in Brazil

The Biomass Expansion Factor (BEF) and the Root-to-Shoot Ratio (R) are variables used to quantify carbon stock in forests. They are often considered as constant or species/area specific values in most studies. This study aimed at showing tree size and age dependence upon BEF and R and proposed equat...

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Autor principal: Sanquetta, Carlos Roberto
Outros Autores: Dalla Corte, Ana Paula Aula, Silva, Fernando da
Grau: Artigo
Idioma: English
Publicado em: Carbon Balance and Management 2020
Assuntos:
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/16177
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spelling oai:repositorio:1-16177 Biomass expansion factor and root-to-shoot ratio for Pinus in Brazil Sanquetta, Carlos Roberto Dalla Corte, Ana Paula Aula Silva, Fernando da Allometry Carbon Dioxide Carbon Sequestration Coniferous Tree Forest Inventory Growth Rate Intergovernmental Panel On Climate Change Phytomass Regression Analysis Root/shoot Ratio Brasil The Biomass Expansion Factor (BEF) and the Root-to-Shoot Ratio (R) are variables used to quantify carbon stock in forests. They are often considered as constant or species/area specific values in most studies. This study aimed at showing tree size and age dependence upon BEF and R and proposed equations to improve forest biomass and carbon stock. Data from 70 sample Pinus spp. grown in southern Brazil trees in different diameter classes and ages were used to demonstrate the correlation between BEF and R, and forest inventory data, such as DBH, tree height and age. Total dry biomass, carbon stock and CO2equivalent were simulated using the IPCC default values of BEF and R, corresponding average calculated from data used in this study, as well as the values estimated by regression equations. The mean values of BEF and R calculated in this study were 1.47 and 0.17, respectively. The relationship between BEF and R and the tree measurement variables were inversely related with negative exponential behavior. Simulations indicated that use of fixed values of BEF and R, either IPCC default or current average data, may lead to unreliable estimates of carbon stock inventories and CDM projects. It was concluded that accounting for the variations in BEF and R and using regression equations to relate them to DBH, tree height and age, is fundamental in obtaining reliable estimates of forest tree biomass, carbon sink and CO2equivalent. © 2011 Sanquetta et al; licensee BioMed Central Ltd. 2020-05-25T20:59:14Z 2020-05-25T20:59:14Z 2011 Artigo https://repositorio.inpa.gov.br/handle/1/16177 10.1186/1750-0680-6-6 en Volume 6 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Carbon Balance and Management
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language English
topic Allometry
Carbon Dioxide
Carbon Sequestration
Coniferous Tree
Forest Inventory
Growth Rate
Intergovernmental Panel On Climate Change
Phytomass
Regression Analysis
Root/shoot Ratio
Brasil
spellingShingle Allometry
Carbon Dioxide
Carbon Sequestration
Coniferous Tree
Forest Inventory
Growth Rate
Intergovernmental Panel On Climate Change
Phytomass
Regression Analysis
Root/shoot Ratio
Brasil
Sanquetta, Carlos Roberto
Biomass expansion factor and root-to-shoot ratio for Pinus in Brazil
topic_facet Allometry
Carbon Dioxide
Carbon Sequestration
Coniferous Tree
Forest Inventory
Growth Rate
Intergovernmental Panel On Climate Change
Phytomass
Regression Analysis
Root/shoot Ratio
Brasil
description The Biomass Expansion Factor (BEF) and the Root-to-Shoot Ratio (R) are variables used to quantify carbon stock in forests. They are often considered as constant or species/area specific values in most studies. This study aimed at showing tree size and age dependence upon BEF and R and proposed equations to improve forest biomass and carbon stock. Data from 70 sample Pinus spp. grown in southern Brazil trees in different diameter classes and ages were used to demonstrate the correlation between BEF and R, and forest inventory data, such as DBH, tree height and age. Total dry biomass, carbon stock and CO2equivalent were simulated using the IPCC default values of BEF and R, corresponding average calculated from data used in this study, as well as the values estimated by regression equations. The mean values of BEF and R calculated in this study were 1.47 and 0.17, respectively. The relationship between BEF and R and the tree measurement variables were inversely related with negative exponential behavior. Simulations indicated that use of fixed values of BEF and R, either IPCC default or current average data, may lead to unreliable estimates of carbon stock inventories and CDM projects. It was concluded that accounting for the variations in BEF and R and using regression equations to relate them to DBH, tree height and age, is fundamental in obtaining reliable estimates of forest tree biomass, carbon sink and CO2equivalent. © 2011 Sanquetta et al; licensee BioMed Central Ltd.
format Artigo
author Sanquetta, Carlos Roberto
author2 Dalla Corte, Ana Paula Aula
Silva, Fernando da
author2Str Dalla Corte, Ana Paula Aula
Silva, Fernando da
title Biomass expansion factor and root-to-shoot ratio for Pinus in Brazil
title_short Biomass expansion factor and root-to-shoot ratio for Pinus in Brazil
title_full Biomass expansion factor and root-to-shoot ratio for Pinus in Brazil
title_fullStr Biomass expansion factor and root-to-shoot ratio for Pinus in Brazil
title_full_unstemmed Biomass expansion factor and root-to-shoot ratio for Pinus in Brazil
title_sort biomass expansion factor and root-to-shoot ratio for pinus in brazil
publisher Carbon Balance and Management
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/16177
_version_ 1787142755012575232
score 11.755432