Modeling Mortality of Individual Trees in a Seasonal Semi-Deciduous Forest

• Published in: Floresta e ambiente Vol. 27; no. 3
• Main Authors: Figueiredo, Lívia Thaís Moreira de, Soares, Carlos Pedro Boechat, Castro, Renato Vinícius Oliveira, Leite, Helio Garcia, Souza, Agostinho Lopes de, Silva, Gilson Fernandes da, Torres, Carlos Moreira Miquelino Eleto
• Format: Journal Article
• Language: English
• Published: Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro 2020; Universidade Federal Rural do Rio de Janeiro
• Subjects: growth models; PLANT SCIENCES; probability of mortality; uneven-aged forest; growth models; probability of mortality; uneven-aged forest
• ISSN: 1415-0980; 2179-8087; 2179-8087
• DOI: 10.1590/2179-8087.098017

Abstract The objective of this study was to assess and compare two methodologies to predict the mortality of individual trees in a seasonal semi-deciduous forest located in the municipality of Viçosa, Minas Gerais, Brazil. The data came from 10 permanent plots and were randomly divided into two groups: fitting (6 plots) and validation (4 plots). When assessing Methodology 1, the mortality was considered a dichotomous variable in a logistic model, assuming a value of 1 for a dead tree and 0 for a living tree. In Methodology 2, the mortality probability was estimated by the group of trees for each plot and for each measurement interval. After the analysis, it was observed that Methodology 2 provided more consistent mortality estimates when compared to the mortality estimated by Methodology 1.