EQUATIONS AND VOLUME TABLES FOR TWO Pinus SPECIES OF LA SIERRA PURHÉPECHA, MICHOACÁN
DOI:
https://doi.org/10.29298/rmcf.v5i23.344Keywords:
Volume equations, forest inventory, Schumacher-Hall model, Pinus lawsonii Roezl, Pinus oocarpa Schiede, Sierra PurhépechaAbstract
One of the main problems faced by forest managers is the need to know how to estimate the volume of wood they have in their forest area, obtained from forest inventory data. Volume equations and weighted expressions are one of the main tools to know, reliably, the actual stocks and achieve sustainable management, as well as forest management. In this context, a study was conducted to develop equations and volume tables for Pinus oocarpa and P. lawsonii in the southern part of the Sierra Purhépecha . The field data collection was carried out by using the scaling and felling of 152 P. lawsonii trees and 83 for P. oocarpa. The Schumacher-Hall, Thornber, Spurr with combined arithmetic variable, Spurr with combined logarithmic variable and Korsun models were fitted and compared, which presented R2 fitted values between 0.97 and 0.99, Durbin Watson statistics close to 2; the Shapiro-Wilk test shows a good distribution of the residuals. A weighted analysis concluded that to estimate the volume of standing timber, the Schumacher-Hall model was the best fit. The test of homogeneity of variance indicated that this model can be used interchangeably for both species.
Downloads
Downloads
Published
How to Cite
Issue
Section
License
The authors who publish in Revista Mexicana de Ciencias Forestales accept the following conditions:
In accordance with copyright laws, Revista Mexicana de Ciencias Forestales recognizes and respects the authors’ moral right and ownership of property rights which will be transferred to the journal for dissemination in open access.
All the texts published by Revista Mexicana de Ciencias Forestales –with no exception– are distributed under a Creative Commons License Attribution-NonCommercial 4.0 International (CC BY-NC 4.0), which allows third parties to use the publication as long as the work’s authorship and its first publication in this journal are mentioned
The author(s) can enter into independent and additional contractual agreements for the nonexclusive distribution of the version of the article published in Revista Mexicana de Ciencias Forestales (for example, include it into an institutional repository or publish it in a book) as long as it is clearly and explicitly indicated that the work was published for the first time in Revista Mexicana de Ciencias Forestales.
For all the above, the authors shall send the form of Letter-transfer of Property Rights for the first publication duly filled in and signed by the author(s). This form must be sent as a PDF file to: ciencia.forestal2@inifap.gob.mx
This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 International license.