CARACTERÍSTICAS DE LOS ANILLOS Y DENSIDAD DE LA MADERA A DIFERENTES AL TURAS DEL FUSTE EN RODALES ACLAREADOS DE Pinus patula Schl. et Cham.

Authors

  • Aurelio Hernández López Colegio de Postgraduados. Montecillo
  • Magdalena Martínez Reyes UACH
  • Jesús J. Vargas Hemández UACH
  • Alejandro Velázquez Martínez Colegio de Postgraduados, Montecillo
  • Gregono Ángeles Pérez Colegio de Postgraduados, Montecillo

Keywords:

Pínus patula, thinning, growth ring, wood density, wood, formation, growth

Abstract

To evaluate the effect of different thinning levels on wood quality at severa! stem heights in two Pinus patula stands, wood samples were taken at three stem heights six years after thinnings were applied. On each sample, ring width, earlywood/latewood ratio and wood density were detennined separately for the growth rings formed before and after the thinning.
At both stands thinning significantly affected earlywood, latewood and total ring widths, as well as the earlywood/latewood ratio. Effects on growth ring traits were first noticed two years after thinning, mainly counteracting age effects on growth ring characteristics. Thinning effects were similar along all the sampling heights on the stem. Due to the reduction in latewood ratio, wood density was also slightly reduced (2-5 %) by thinning. Although there were no statistical differences, relative reduction in wood density was larger at breast height than at the other sampling points on the stem.

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Published

2020-11-27

How to Cite

Hernández López, Aurelio, Magdalena Martínez Reyes, Jesús J. Vargas Hemández, Alejandro Velázquez Martínez, and Gregono Ángeles Pérez. 2020. “ Et Cham”. Revista Mexicana De Ciencias Forestales 21 (80). México, ME:40-55. https://cienciasforestales.inifap.gob.mx/index.php/forestales/article/view/987.

Issue

Vol. 21 No. 80 (1996): Ciencia Forestal en México

Section

Scientific article

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