Evolution of assortment of Pinus taeda stands located at Paraná and Santa Catarina States.

Authors

  • Sintia Valerio Kohler Universidade Federal do Paraná
  • Henrique Soares Koehler Universidade Federal do Paraná
  • Afonso Figueiredo Filho Universidade Estadual do Centro-Oeste
  • Julio Eduardo Arce Universidade Federal do Paraná
  • Sebastião do Amaral Machado Universidade Federal do Paraná

DOI:

https://doi.org/10.5380/rf.v45i3.35746

Keywords:

Assortment dynamic, multproduct, taper models.

Abstract

Abstract

The dynamic evolution of assortment of Pinus taeda stands was studied using data from complete stem analysis in stands established at Paraná and Santa Catarina states, sampling 126 and 120 trees respectively. The integer and fractional power equation was fitted to the data set stratified by age classes. With FlorExel ® program volumes assortments by the different ages of stands were estimated. The average tree total volume was 1,157 m³, at age of 18 years in Paraná state and 0,959 m³ at Santa Catarina State. Wood for cellulose had higher representation in the class of 7 to 9 years, with 50% of the volume. Volumes for sawmill type 1 were estimated in plantations from 7 years, and for sawmill type 2 from 8 and 9 years old, respectively, representing 70% of the total volume (sawmill type 1 + sawmill type 2) at 10 to 12 years of age. Tree volumes for veneer were obtained from 13 years of age on, in both stands, arriving to present more than 30% of the total volume from the age 19 years. It was observed a fast change in the "noble" assortment after the age of 13 years.

Downloads

Published

2015-01-24

How to Cite

Kohler, S. V., Koehler, H. S., Figueiredo Filho, A., Arce, J. E., & Machado, S. do A. (2015). Evolution of assortment of Pinus taeda stands located at Paraná and Santa Catarina States. Floresta, 45(3), 545–554. https://doi.org/10.5380/rf.v45i3.35746

Issue

Vol. 45 No. 3 (2015)

Section

Artigos

License

Direitos Autorais para artigos publicados nesta revista são do autor, com direitos de primeira publicação para a revista. Em virtude da aparecerem nesta revista de acesso público, os artigos são de uso gratuito, com atribuições próprias, em aplicações educacionais e não-comerciais.A revista, seguindo a recomendações do movimento Acesso Aberto, proporciona acesso publico a todo o seu conteudo, seguindo o principio de que tornar gratuito o acesso a pesquisas gera um maior intrcambio global de conhecimento. 

Conteúdos do periódico licenciados sob uma  CC BY-NC-SA 4.0