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

查看全文 作　　者：Andre Felipe [1]Hess;Myrcia [2]Minatti;Emanuel Arnoni [1]Costa;Luis Paulo Baldissera [1]Schorr;Gabriel Teixeira da [1]Rosa;Isadora de Arruda [1]Souza;Geedre Adriano [1]Borsoi;Veraldo [1]Liesenberg;Thiago Floriani [1]Stepka;Roberta [1]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》索引2021年第32卷第1期,共12页

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

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

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