Efect of crown length on the hypsometric relationship of Araucaria angustifolia

Authors

  • Sebastião do Amaral Machado Universidade Federal do Paraná, Curitiba, PR
  • Yuri Accioly Universidade Federal do Paraná, Curitiba, PR
  • Rodrigo Geroni Mendes Nascimento Universidade Federal do Paraná, Curitiba, PR
  • Luís César Rodrigues da Silva Universidade Federal do Paraná, Curitiba, PR
  • Claudia Carla Cardozo Universidade Federal do Paraná, Curitiba, PR

DOI:

https://doi.org/10.4336/2015.pfb.35.83.493

Keywords:

Height curves, Araucaria Forest, Models identity

Abstract

This study aimed to test the hypothesis that crown length affects the hypsometric relationship. We used data from diameter measured at 1.3 m above ground level (DBH) and total heights of 337 trees of Araucaria angustifolia (Bertol.) O. Kuntze from an urban remnant of Araucaria Forest with 15.24 ha, located in Curitiba, PR, Brazil. These trees were grouped into classes of crown length. Six hypsometric models were adjusted to the data for each class and for the entire data set. The best model was chosen based on the standard error of estimate in percentage, index of Schlaegel, and graphical analysis of residuals. The ranking indicated Trorey as the best model. The models identity test of Graybill applied to the Trorey model indicated that crown length influenced the hypsometric relationship of the araucarias in the study area.

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Author Biographies

Sebastião do Amaral Machado, Universidade Federal do Paraná, Curitiba, PR

http://lattes.cnpq.br/3669322041194714

Yuri Accioly, Universidade Federal do Paraná, Curitiba, PR

http://lattes.cnpq.br/8436004755398600

Rodrigo Geroni Mendes Nascimento, Universidade Federal do Paraná, Curitiba, PR

http://lattes.cnpq.br/4484316403528154

Luís César Rodrigues da Silva, Universidade Federal do Paraná, Curitiba, PR

http://lattes.cnpq.br/8696010307456216

Claudia Carla Cardozo, Universidade Federal do Paraná, Curitiba, PR

http://lattes.cnpq.br/9475011854348050

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Published

2015-09-30

How to Cite

MACHADO, Sebastião do Amaral; ACCIOLY, Yuri; NASCIMENTO, Rodrigo Geroni Mendes; DA SILVA, Luís César Rodrigues; CARDOZO, Claudia Carla. Efect of crown length on the hypsometric relationship of Araucaria angustifolia. Pesquisa Florestal Brasileira, [S. l.], v. 35, n. 83, p. 343–351, 2015. DOI: 10.4336/2015.pfb.35.83.493. Disponível em: https://pfb.sede.embrapa.br/pfb/article/view/493. Acesso em: 8 mar. 2026.

Issue

Vol. 35 No. 83 (2015): jul./set.

Section

Scientific Notes

License

Copyright (c) 2015 Sebastião do Amaral Machado, Yuri Accioly, Rodrigo Geroni Mendes Nascimento, Luís César Rodrigues da Silva, Claudia Carla Cardozo

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