Use este identificador para citar ou linkar para este item: http://repositorio.inpa.gov.br/handle/123/8542
Título: Significance of Topographic Gradient in Stem Diameter - Height Allometry for Precise Biomass Estimation of a Tropical Moist Forest in the Central Amazon
Autor(es): SUWA, REMPEI
SAKAI, TAKESHI
SANTOS, JOAQUIM DOS
SILVA, ROSEANA PEREIRA DA
KAJIMOTO, TAKUYA
ISHIZUKA, MORIYOSHI
Niro Higuchi
Assunto: Dinâmica Florestal
ecologia florestal
Inventário Florestal
ISSN: 0021-3551
Revista: JARQ. Japan Agricultural Research Quarterly
Volume: 47
Resumo: We developed a stem diameter D-height H allometric model that included variability in the D-H relationship along a topographic gradient. The study site was located along a belt transect (2500 × 20 m) established in a primary tropical forest near Manaus, Brazil. The transect included typical topography of the region, characterized by plateaus and valleys called “baixios”. The D-H allometric model (n = 1307) indicated that potential tree height increased significantly, from 28 m at the lowest baixio plot to 35 m at the highest plateau plot. Consequently, by combining the D-H allometric model and an allometric equation with the variable D2H, biomass was estimated for trees (D > 10 cm) in each sub-plot (20 × 20 m). Ignoring variability in the D-H relationship introduced wide-ranging error to biomass estimation; error values ranged from -5% at a baixio plot to +6% at a plateau plot. Average biomass was 317 ± 28 (SE) Mg ha-1, and tree density and biomass fell significantly with decreasing relative elevation.
URI: http://repositorio.inpa.gov.br/handle/123/8542
ISSN: 0021-3551
DOI: https://dx.doi.org/10.6090/jarq.47.109
Aparece nas coleções:Coordenação de Dinâmica Ambiental (CDAM)

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