Open AccessForm of Distribution of Dendro/Morphometric Variables for Brazilian Pine in Southern Brazil
Author(s) -
André Felipe Hess,
Soriane Schiitter,
Diego Vinchiguerra dos Santos,
Emanuel Ari Costa,
Myrcia Minatti,
Pollyni Ricken,
Danieli Regina Klein,
Ana Cláudia Silveira,
Veraldo Liesenberg,
Alex Nascimento de Sousa,
Lucas Denega
Publication year - 2021
Publication title -
journal of agricultural science
Language(s) - English
Resource type - Journals
eISSN - 1916-9760
pISSN - 1916-9752
DOI - 10.5539/jas.v13n8p69
Subject(s) - weibull distribution , basal area , forestry , forest management , ecology , geography , productivity , biology , mathematics , statistics , macroeconomics , economics
The form of distribution found for the dendro/morphometric variables determines the structure, stability, productivity of forest stands, being a tool to propose silvicultural interventions, management, conservation of species, and dynamics of this environment. Thus, this study evaluates, using probability density functions (pdf), the form of distribution of these variables for araucaria in five sites in southern Brazil, aiming to establish the dynamics and identify the existence of a standard—or the lack thereof—to propose the need for silvicultural interventions to conserve the species and the future forest structure. The Normal, Log-Normal, Weibull and Gamma probability density functions were tested. Results show no significant changes in the shape and dimension in the forest structure dynamics, but a period of stability in the pattern of dendro/morphometric values, resulting from the stagnation of the values of the variables, non-intervention in the forest, relationship with the site, density, competition, and position of the tree in the forest stratum, which compromises the future structure of this forest typology. The study proves that the distribution probability of the variables can be used in management for species conservation and future structure development, as this influences the growth dynamics and processes, resource availability, and the stability, diversity, vitality, and productivity of the species.