Comparing stem taper functions and analysis the taper ratio of three poplar clones (Populus x euramericana) in Navarre
Abstract
The present work analyzes three stem taper functions on three clones of Populus x euramericana (Canadá Blanco, I-214 and MC) in Navarre to elaborate a merchantable volume equation. To minimize the effect of the autocorrelation a continuous autoregressive error structure CAR(2) or CAR(3), depending the clone analyzed, is used. On the other hand, the local form exponent of the three clones is compared by two methods: the analysis of variance of the individual estimation of the local form exponent, and contrasting the maximum likelihood statistic between adjustments. The Canadá clone is the more conical clone of the three clones analyzed. The data come from 143 poplars in even-aged stands with the same frame of plantation (real frame at 4,5 × 4,5 m).Downloads
© CSIC. Manuscripts published in both the printed and online versions of this Journal are the property of Consejo Superior de Investigaciones Científicas, and quoting this source is a requirement for any partial or full reproduction.
All contents of this electronic edition, except where otherwise noted, are distributed under a “Creative Commons Attribution 4.0 International” (CC BY 4.0) License. You may read here the basic information and the legal text of the license. The indication of the CC BY 4.0 License must be expressly stated in this way when necessary.
Self-archiving in repositories, personal webpages or similar, of any version other than the published by the Editor, is not allowed.