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Madera y bosques

On-line version ISSN 2448-7597Print version ISSN 1405-0471


MANZANO-MENDEZ, Filemón; VALDEZ-HERNANDEZ, Juan Ignacio; LOPEZ-LOPEZ, Miguel Ángel  and  VAQUERA-HUERTA, Humberto. Diameter growth of Zanthoxylum kellermanii P. Wilson in a tropical evergreen forest of northern Oaxaca, Mexico. Madera bosques [online]. 2010, vol.16, n.2, pp.19-33. ISSN 2448-7597.

The seasonal diameter growth of a commercially valuable tree species, Zanthoxylum kellermanii (P. Wilson), was determined. Twenty-two trees were selected in six diameter categories and dendrometric bands were used to take bimonthly growth readings. Other readings related to crown characteristics were also taken: quality (symmetry, vigor, density of foliage) and positions (light incidence). Mean annual growth in diameter fluctuated from 0,86 cm to 1,87 cm within diameter categories; from 0,52 cm to 2,04 cm within crown qualities and from 0,73 cm to 1,70 cm within crown positions. Analyses of variance showed highly significant differences (p≤0,001) among diameter categories, as well as among crown qualities and positions. Tools such as dendrometric bands along with regression models, proved to be useful to determine and project the diameter increment of the species studied.

Keywords : Dendrometric band; crown quality and position; diameter category; timber species; growth rate.

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