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Allometric Equations for Estimating Biomass of Euterpe precatoria, the Most Abundant Palm Species in the Amazon

Brazilian National Institute for Research in the Amazon, Laboratory for Forest Management, Manaus 69.060-000, Brazil
Forestry and Forest Products Research Institute, Kansai Research Center, 68 Nagaikyutaroh, Momoyama, Fushimi, Kyoto 612-0855, Japan
Forestry and Forest Products Research Institute, Matsunosato, Tsukuba, Ibaraki 305-8687, Japan
Department for Biogeochemical Processes, Max Planck Institute for Biogeochemistry, Hans Knöll Str. 10, Jena 07745, Germany
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editors: Michael Battaglia and Eric J. Jokela
Forests 2015, 6(2), 450-463;
Received: 25 November 2014 / Accepted: 2 February 2015 / Published: 10 February 2015
PDF [554 KB, uploaded 10 February 2015]


Allometric models to estimate biomass components such as stem mass Ms, foliage mass Ml, root mass Mr and aboveground mass Ma, were developed for the palm species Euterpe precatoria Mart., which is the most abundant tree species in the Amazon. We harvested twenty palms including above- and below-ground parts in an old growth Amazonian forest in Brazil. The diameter at breast height D ranged from 3.9–12.7 cm, and the stem height H ranged from 2.3–16.4 m. The D, diameter at ground basis D0, crown diameter CD, H, stem specific gravity ρ, and number of fronds Nf were considered as independent variables and incorporated into a power function model. The best predictors were D2 for Ms and Ma, D2HNf for Ml, and D for Mr. Slender index (H/D) ranged from 0.56–1.46 m·cm−1, and the D-H relationship suggested that the stem shape becomes more slender with increasing D. On the other hand, ρ increased with D implying a stiffening of stem tissue. The average root/shoot ratio was estimated as 0.29 which was higher than that reported for the non-palm tree species in the Amazon. Comparisons of several models to estimate Ma of different palm species, suggested that the variations of the D-H relationship and ρ should be considered to develop allometric models for estimating biomass in palm species. In particular the ρ largely varied depending on individual size, which should be important to consider, when developing the allometric models for palms. View Full-Text
Keywords: Açaí; Arecaceae; biomass; carbon stocks; dimension analysis; terra-firme Açaí; Arecaceae; biomass; carbon stocks; dimension analysis; terra-firme

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Da Silva, F.; Suwa, R.; Kajimoto, T.; Ishizuka, M.; Higuchi, N.; Kunert, N. Allometric Equations for Estimating Biomass of Euterpe precatoria, the Most Abundant Palm Species in the Amazon. Forests 2015, 6, 450-463.

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