<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2007-1132</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias forestales]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. de cienc. forestales]]></abbrev-journal-title>
<issn>2007-1132</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-11322016000100040</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Biomasa aérea de Zanthoxylum kellermanii P. Wilson en una selva perennifolia del norte de Oaxaca]]></article-title>
<article-title xml:lang="en"><![CDATA[Aboveground biomass of Zanthoxylum kellermanii P. Wilson in a tropical evergreen forest at the North of Oaxaca State]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Manzano Méndez]]></surname>
<given-names><![CDATA[Filemón]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valdez Hernández]]></surname>
<given-names><![CDATA[Juan Ignacio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López López]]></surname>
<given-names><![CDATA[Miguel Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pineda Herrera]]></surname>
<given-names><![CDATA[Elizandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Oaxaca  ]]></institution>
<addr-line><![CDATA[Oaxaca Oax]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Colegio de Postgraduados Postgrado Forestal ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,elherrera2001@yahoo.com.mx  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2016</year>
</pub-date>
<volume>7</volume>
<numero>33</numero>
<fpage>40</fpage>
<lpage>51</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-11322016000100040&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-11322016000100040&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-11322016000100040&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Zanthoxyllum kellermanii es una especie de importancia ecológica y económica del sureste mexicano, que se desarrolla en la región de La Chinantla, Oaxaca. Para generar las ecuaciones conducentes a determinar su biomasa aérea, se derribaron dos árboles por clase diamétrica (10, 15, 20 y 25 cm), de las que se separaron tres secciones: follaje, ramas y fuste. De cada una se obtuvieron muestras que se pesaron en fresco y que posteriormente fueron secadas en estufas. Con estos datos se estableció la relación entre peso fresco y peso seco para estimar valores de biomasa por componentes y del árbol total para cada clase, además se ajustaron ecuaciones alométricas mediante técnicas de regresión no lineal. Los valores de biomasa aérea por árbol variaron de 0.494 a 2.14 kg en follaje, de 1.74 a 25.9 kg en ramas y de 7.6 a 206.72 kg en fustes; la proporción promedio de la biomasa fue de 83 % en fustes, 14 % en ramas y 3 % en follaje. Las ecuaciones alométricas generadas para Z. kellermanii mostraron un buen nivel de ajuste, determinado por sus valores estadísticos, por lo que el modelo es confiable para realizar una buena predicción de la biomasa aérea a través del diámetro normal. El patrón de distribución de la biomasa, respecto al peso seco total indica que la especie tiene su mayor potencial para acumular biomasa en el fuste.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Zanthoxylum kellermanii is a species of ecological and economic value in southeast Mexico, in particular in the Chinantla region of Oaxaca State. In order to generate the equations that determine its aboveground biomass, two trees by diametric class (10, 15, 20 and 25 cm) were felled, dividing each of them into three sections: foliage, branches and stem. From each section samples were taken and weighed directly to determine fresh weight and later they were dried in kilns. With these data the relationship between fresh weight and dry weight was established to estimate values of biomass per tree compartments and the total for each category, adjusting allometric equations by nonlinear regression techniques. The values of biomass per tree ranged from 0.494 to 2.14 kg in foliage, 1.74 to 25.9 kg in branches and 7.6 to 206.72 kg in stems. The average proportion of the biomass was 83 % in stems, branches and 14 % in 3 % in foliage. Allometric equations generated for Z. kellermanii showed a good level of fit, determined by their statistical values, so that the model is reliable to make a good prediction of biomass through the normal diameter. The distribution pattern of biomass, relative to the total dry weight indicates that this species has the greatest potential to accumulate biomass in the stem.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Biomasa aérea]]></kwd>
<kwd lng="es"><![CDATA[ecuaciones alométricas]]></kwd>
<kwd lng="es"><![CDATA[follaje]]></kwd>
<kwd lng="es"><![CDATA[fuste]]></kwd>
<kwd lng="es"><![CDATA[Oaxaca]]></kwd>
<kwd lng="es"><![CDATA[ramas]]></kwd>
<kwd lng="en"><![CDATA[Aboveground biomass]]></kwd>
<kwd lng="en"><![CDATA[allometric equations]]></kwd>
<kwd lng="en"><![CDATA[foliage]]></kwd>
<kwd lng="en"><![CDATA[stem]]></kwd>
<kwd lng="en"><![CDATA[Oaxaca]]></kwd>
<kwd lng="en"><![CDATA[branches]]></kwd>
</kwd-group>
</article-meta>
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