Avaliação do crescimento de espécies implantadas em módulos demonstrativos de recuperação do cerrado em latossolo na região sul do Tocantins

Abstract

The present work aimed to evaluate the growth dynamics of 12 native species from the Cerrado sensu stricto in a Demonstrative Recovery Module (MDR). The experimental plot is located in a Legal Reserve area of the experimental farm of the Federal University of Tocantins – UFT. Information on survival rate, mean increment in DAC, mean height of the implanted individuals, relative frequency of DAC and height, and a hypsometric analysis with the mathematical model of Henriksen were used. The mean increment in CAD of the plot for the total period of evaluation was 21.44 mm and a standard deviation of 8.78 mm, which indicates a high dispersion of the data in relation to the mean, a reduction in the dispersion of the deviation was observed standard in relation to the average corresponding to 41.0% between 1st and 3rd evaluation. Among the 12 species analyzed those that obtained a survival rate greater than 75% were Cajuzinho (100%), Cega Machado (93.1%), Ingá (92.0%), Acorn Bean (91.8%), Ipê Roxo (90.0%), and Dry Flour (87.5%). The adjustment of the Henriksen model for the individuals evaluated was satisfactory, with a determination coefficient of 58.0%, indicating an excellent performance for a period of 12 months of evaluation.