A theory to link relationships of stand volume,density,mean diameter and height in forestry data

作     者：Vladimir L.Gavrikov Vladimir L.Gavrikov

作者机构：Chair of Ecology and Environmental StudiesInstitute Ecology and GeographySiberian Federal University79 pr.SvobodnyiKrasnoyarskRussian Federation 660041 

出 版 物：《Journal of Forestry Research》 (林业研究（英文版）)

年 卷 期：2021年第32卷第1期

页      面：15-20页

核心收录：

学科分类：090704[农学-森林经理学] 0907[农学-林学] 09[农学] 

基　　金：the Russian Foundation for Basic Research,Government of Krasnoyarsk Territory,Krasnoyarsk Regional Fund of Science,under the research project:“Prognosis of region-specifi c responses of Siberian mountain forests to global environmental changes and of the landscape development trajectories for mitigation of environmental risks and an eff ective long-term planning in various economic sectors”(No.18-45-240001) the Russian Foundation for Basic Research to the research project:“Late Holocene dynamics of Asia boreal forests at the background of changing geochemistry and climatic conditions”(No.19-05-00091) 

主　　题：Relationship between relationships Selfthinning Forestry data Allometry Scots pine Douglasfir 

摘      要：In this study,a geometric model of a growing forest stand has been *** basic relationships considered link stand volume and stand density,diameter at breast height(DBH),mean DBH and mean *** model provides simple formulas connecting the exponents of all the *** of the formulas to real forestry data provided a high level of predictions of an exponent from two others measured through regressions from empirical *** Pinus sylvestris *** were of a static nature,a collection of individual stands,while the Pseudotsuga menziesii(Mirb.)Franco data were dynamic,representing forest stand development over *** ability of the model to predict exponents in the empirical data implies,on the one hand,a substantial level of similarity between the model and the forestry ***,on the other hand,the model gives an example in which parameters of one relationship may be linked to parameters of *** this kind of‘relationship between relationships’may be observed in forest stands undergoing active growth and competition-induced self-thinning.