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Journal of Forestry Research

, Volume 29, Issue 3, pp 575–582 | Cite as

‘Relationships between relationships’ in forest stands: intercepts and exponents analyses

  • Vladimir L. Gavrikov
Original Paper
  • 124 Downloads

Abstract

Relationships between diameter at breast height (dbh) versus stand density, and tree height versus dbh (height curve) were explored with the aim to find if there were functional links between correspondent parameters of the relationships, exponents and intercepts of their power functions. A geometric model of a forest stand using a conic approximation suggested that there should be interrelations between correspondent exponents and intercepts of the relationships. It is equivalent to a type of ‘relationship between relationships’ that might exist in a forest stand undergoing self-thinning, and means that parameters of one relationship may be predicted from parameters of another. The predictions of the model were tested with data on forest stand structure from published databases that involved a number of trees species and site quality levels. It was found that the correspondent exponents and intercepts may be directly recalculated from one another for the simplest case when the total stem surface area was independent of stand density. For cases where total stem surface area changes with the drop of density, it is possible to develop a generalization of the model in which the interrelationships between correspondent parameters (exponents and intercepts) may be still established.

Keywords

Total stem surface area Self-thinning Conic approximation Power function Exponent Intercept Scots pine 

Notes

Acknowledgements

Dr. G. Kofman read the manuscript and made useful suggestions which are gratefully acknowledged. The author thanks two anonymous reviewers who made useful comments that helped to improve the manuscript.

Supplementary material

11676_2017_475_MOESM1_ESM.docx (138 kb)
Supplementary material 1 (DOCX 137 kb)

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Copyright information

© Northeast Forestry University and Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  1. 1.Institute for Ecology and Geography, Chair of Ecology and Environmental StudiesSiberian Federal UniversityKrasnoyarskRussian Federation

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