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  <titleInfo>
    <title>Comparação de modelos estatísticos para estimativa da biomassa de árvores, e estimativa do estoque de carbono acima do solo em Cerrado</title>
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  <name type="personal">
    <namePart>Oliveira, Camila Paula de</namePart>
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  <name type="personal">
    <namePart>Francelino, Márcio Rocha</namePart>
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    </role>
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  <name type="personal">
    <namePart>Daher, Mayara</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Leles, Paulo Sérgio dos Santos</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Andrade, Fernando Canto de</namePart>
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  <abstract>

Resumo

Neste trabalho foram comparados diferentes modelos estatísticos para a estimativa da biomassa individual de árvores, e estimados os estoques totais de biomassa e de carbono acima do solo, nos três compartimentos (arbóreo, herbáceo-arbustivo e serapilheira) de um cerrado sensu stricto típico no oeste da Bahia. Foi realizado o inventário florestal em 20 parcelas de 1000 m² (20 m x 50 m). Para ajuste dos modelos estatísticos foram cortadas e pesadas 90 árvores de diferentes espécies e classes diamétricas. Foram ajustados modelos para o diâmetro medido a 30 cm do solo (D30cm≥5cm) e diâmetro medido a 1,30 m do solo (DAP1,30m≥3,5 cm). A equação escolhida foi aplicada aos dados das árvores levantados no inventário florestal, e assim foram estimados os estoques por hectare e total no compartimento arbóreo. As amostragens dos compartimentos herbáceo-arbustivo e serapilheira foram realizadas por subparcelas fixas. Foram alocadas sistematicamente 20 subparcelas de 4 m² (2 m x 2 m) para amostragem do compartimento herbáceo-arbustivo e 20 subparcelas de 1 m² (1 m x 1 m) para amostragem da serapilheira. O estoque de carbono foi estimado por fator de conversão da biomassa. A equação proveniente do ajuste do modelo de Schumacher &amp; Hall (logarítmica) (R2 = 93,53%; Sxy = 44,92%) foi a escolhida para estimar o estoque de biomassa das árvores do cerrado estudado. A biomassa total acima do solo, considerando os três compartimentos, foi estimada em 18,77 Mg ha-1, o que corresponde a um estoque total de 8,67 Mg ha-1 de carbono. O compartimento arbóreo foi responsável pela maior parte dos estoques (58%), seguido da serapilheira (26%) e herbáceo-arbustivo (16%). 


Palavras-chave: Formações savânicas; Cerrado típico; Equações de biomassa; Solos arenosos</abstract>
  <abstract>

Abstract

In this work, different statistical models were compared for estimating individual tree biomass and the total biomass and carbon stocks above the soil, in the three compartments (arboreal, herbaceous-shrub and litter) of a typical Cerrado in the west of Bahia state, Brazil. The forest inventory was carried out in 20 plots of 1000 m² (20 m x 50 m). In order to fit the statistical models, 90 trees of different species and diameter classes were cut and weighed. Models were fitted for the diameter measured at 30 cm from the soil (D30cm≥5cm) and the diameter measured at 1.30 m from the soil (DAP1,30m≥3,5 cm). The equation chosen was applied to  the  data  of  the  trees  collected  in  the  forest  inventory,  and  thus,  the  stocks  per  hectare  and  the  total  in  the  tree  compartment  were estimated. Samplings of the herbaceous-shrub and litter compartments were performed by fixed subplots. For sampling of the herbaceous-shrub and litter compartments, 20 subplots of 4 m² (2 m x 2 m) and 20 subplots of 1 m² (1 m x 1 m) were systematically allocated, respectively. The carbon stock was estimated by the biomass conversion factor. The equation resulting from the adjustment of the Schumacher &amp; Hall (logarithmic) model (R2 = 93.53%; Sxy = 44.92%) was chosen to estimate the biomass stock of the studied Cerrado trees. The total biomass above the soil, considering the three compartments, was estimated at 18.77 Mg ha-1, which corresponds  to  a  Carbon  total  stock  of  8.67  Mg  ha-1.  The  arboreal  compartment  was  responsible  for  most  of  the  stocks  (58%),  followed by litter (26%) and herbaceous-shrub (16%).

Keywords: Savanna formations; Typical Cerrado; Biomass equations; Sand soil</abstract>
  <note>Publicação on-line; 19 ref.; 8 tables; 2 illus.; Summaries (En, Pt)</note>
  <subject>
    <topic>CERRADO</topic>
  </subject>
  <subject>
    <topic>BIOMASSA</topic>
  </subject>
  <subject>
    <topic>SOLO ARENOSO</topic>
  </subject>
  <subject>
    <topic>MÉTODO ESTATÍSTICO</topic>
  </subject>
  <relatedItem type="host">
    <titleInfo>
      <title>Ciência Florestal (Brazil)</title>
    </titleInfo>
    <originInfo>
      <publisher>Santa Maria-RS Universidade Federal de Santa Maria - Centro de Pesquisas Florestais.Departamento de Ciências Florestais. Programa de Pós-Graduação em Engenharia Florestal 1991</publisher>
    </originInfo>
    <identifier>2024-0078</identifier>
    <identifier type="issn">0103-9954; 1980-5098 (on-line)</identifier>
    <identifier type="local">BR2023001598</identifier>
    <part>
      <text>v. 29(1) p. 255-269; (Jan-Mar 2019)</text>
    </part>
  </relatedItem>
  <identifier type="uri">https://www.scielo.br/j/cflo/a/Rfc9jZyj6QPpHK6JLV4Pxgv/?format=pdf&amp;lang=pt</identifier>
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    <url>https://www.scielo.br/j/cflo/a/Rfc9jZyj6QPpHK6JLV4Pxgv/?format=pdf&amp;lang=pt</url>
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    <recordCreationDate encoding="marc">240319</recordCreationDate>
    <recordChangeDate encoding="iso8601">20240319135919.0</recordChangeDate>
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      <languageTerm authority="iso639-2b" type="code">por</languageTerm>
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