Influência da posição sociológica na relação hipsométrica de Araucaria angustifolia.

Costa, Emanuel A.; Finger, César A. G.; da Cunha, Thiago A.

The influence of the social position classified in: dominant, co-dominant and dominated on the development of the hypsometric relationship of Araucaria angustifolia (Bertol.) Kuntze in remnant native forest was studied in a random sample of 294 trees localized in Lages, SC. Five hypsometric models were fitted by regression analysis, and the Michailoff model was selected to describe the hypsometric relationship by social classes. Covariance analysis identified differences in the level and slope of the curves, justifying the use of different equations to minimize the error estimation. The hypsometric relationship described by a unique model with Dummy variable (D1), for co-dominant trees and (D2) for the trees dominated, presented a R2aj. of 0.7008 and Syx% of 12.77%.

BRAZIL; BRAZILIAN pine; ALTITUDE measurements; REMNANT vegetation; FORESTS & forestry; REGRESSION analysis; SOCIAL classes; ANALYSIS of covariance

Brazilian Journal of Agricultural Sciences / Revista Brasileira de Ciências Agrárias, 2014, Vol 9, Issue 1, p110

1981-1160

Academic Journal

10.5039/agraria.v9i1a3201