Height-to-diameter ratios with temporal and dendro/morphometric variables for Brazilian pine in south Brazil  

作　　者：Andre Felipe Hess Myrcia Minatti Emanuel Arnoni Costa Luis Paulo Baldissera Schorr Gabriel Teixeira da Rosa Isadora de Arruda Souza Geedre Adriano Borsoi Veraldo Liesenberg Thiago Floriani Stepka Roberta Abatti 

机构地区：[1]Department of Forest Engineering,Santa Catarina State University,2090 Luiz de Camoes Avenue,Lages,Santa Catarina State 88520-000,Brazil [2]Department of Forest Engineering,Federal University of Parana(UFPR),Pref.Lothario Meissner Ave.,900,Curitiba,Parana 80060-000,Brazil

出　　处：《Journal of Forestry Research》2021年第1期191-202,共12页林业研究（英文版）

基　　金：The FAPESC(Foundation for Research Support of the Santa Catarina State),Case Number 2017TR639.

摘　　要：Height-to-diameter ratios(HD)are an important measure of the stability,density and competition of forest stands.It refl ects the vertical growth of the trees,the vulnerability of the forest canopy structure and infl uences volumetric production.HD ratios vary according to tree size,availability of resources for growth,stand density and species composition.Data were taken from 210 trees and a regression technique of generalized linear models for the HD ratio applicable for forest structure conservation was developed.The objective of this study was to model the HD ratios of dominant and co-dominant trees of Araucaria angustifolia according to morphometric,dendrometric,annual diameter increment,stand density,and age variables in three sites in southern Brazil.The results show that the HD ratio decreases with increasing age,crown area and basal area,and increases with stand density and annual diameter increment.Accuracy of the developed equations was demonstrated by the values of deviation,Bayesian and Akaike criteria.The results are of interest to forest managers since they make decisions about silvicultural operations.Growth continuity and forest production indicate that any intervention should be directed at younger trees of smaller sizes,and that one of the main management factors for stand stability and growth is the formation of the stand and its capture of light.

关 键 词：Forest management Mixed forests CONSERVATION Araucaria angustifolia 

分 类 号：S791.24[农业科学—林木遗传育种]