Compatible System for Predicting Total and Merchantable Stem Volume over and under Bark, Branch Volume and Whole-Tree Volume of Pine Species
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|Title:||Compatible System for Predicting Total and Merchantable Stem Volume over and under Bark, Branch Volume and Whole-Tree Volume of Pine Species
|Author:||Corral Rivas, José Javier
Vega Nieva, Daniel José
Rodríguez Soalleiro, Roque
López Sánchez, Carlos Antonio
Vargas Larreta, Benedicto
Álvarez González, Juan Gabriel
Ruiz González, Ana Daría
|Affiliation:||Universidade de Santiago de Compostela. Departamento de Enxeñaría Agroforestal
Universidade de Santiago de Compostela. Departamento de Produción Vexetal e Proxectos de Enxeñaría
|Subject:||Taper function | Branch volume | Bark volume | Simultaneous fitting ||
|Date of Issue:||2017
|Citation:||Corral-Rivas, J. J., Vega-Nieva, D. J., Rodríguez-Soalleiro, R., López-Sánchez, C. A., Wehenkel, C., Vargas-Larreta, B., ... & Ruiz-González, A. D. (2017). Compatible system for predicting total and merchantable stem volume over and under bark, branch volume and whole-tree volume of pine species. Forests, 8(11), 417
|Abstract:||Accurate quantification of branch volume in trees is important for sustainable forest management, especially as these fractions are increasingly used for bioenergy, and for precise forest CO2 quantification. Whereas a large focus has been placed on the compatible estimation of tree taper and bole volume with and without bark, little effort has been made to develop models that allow a simultaneous prediction of these variables together with tree branch volume. In this study, 595 Pinus cooperi trees and 700 Pinus durangensis trees were sampled in pine-oak forests in the Sierra Madre Occidental, Mexico. A compatible system for predicting two segmented taper functions, over and under bark; the corresponding merchantable volumes; coarse branch volume and whole-tree volume was fitted using a modified continuous autoregressive structure to account for autocorrelation. The proposed compatible equations explained more than 97% of the observed variability in diameter over and under bark, volume over and under bark, and total tree volume and more than 64% of the observed variability in branch volume in both species. The method described can theoretically be replicated for any tree species, thus providing a better understanding of the patterns of volume distribution by components, potentially improving carbon accounting system and forest bioenergy planning.|
|Rights:||© 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/)
Except where otherwise noted, this item's license is described as © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/)
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