<?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>1405-0471</journal-id>
<journal-title><![CDATA[Madera y bosques]]></journal-title>
<abbrev-journal-title><![CDATA[Madera bosques]]></abbrev-journal-title>
<issn>1405-0471</issn>
<publisher>
<publisher-name><![CDATA[Instituto de Ecología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-04712018000400204</article-id>
<article-id pub-id-type="doi">10.21829/myb.2018.2401880</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Ecuaciones de biomasa aérea y volumen para Pinus halepensis Mill., en Coahuila, México]]></article-title>
<article-title xml:lang="en"><![CDATA[Aboveground biomass and volume equations for Pinus halepensis Mill., in Coahuila, Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Montoya Jiménez]]></surname>
<given-names><![CDATA[Juan C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Méndez González]]></surname>
<given-names><![CDATA[Jorge]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sosa Díaz]]></surname>
<given-names><![CDATA[Librado]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ruíz González]]></surname>
<given-names><![CDATA[Cecilia G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zermeño González]]></surname>
<given-names><![CDATA[Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nájera Luna]]></surname>
<given-names><![CDATA[Juan A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Manzano Camarillo]]></surname>
<given-names><![CDATA[Mario G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Velázquez Rodríguez]]></surname>
<given-names><![CDATA[Alma S.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma Agraria Antonio Narro Departamento Forestal ]]></institution>
<addr-line><![CDATA[Buenavista Saltillo Coahuila]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma Agraria Antonio Narro Departamento de Riego y Drenaje ]]></institution>
<addr-line><![CDATA[Buenavista Saltillo Coahuila]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Tecnológico de El Salto División de Estudios de Posgrado e Investigación ]]></institution>
<addr-line><![CDATA[Durango Durango]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Instituto Tecnológico y de Estudios Superiores de Monterrey Centro de Calidad Ambiental ]]></institution>
<addr-line><![CDATA[Monterrey Nuevo León]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad Autónoma del Estado de México Facultad de Ciencias ]]></institution>
<addr-line><![CDATA[El Cerrillo Piedras Blancas, Toluca Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2018</year>
</pub-date>
<volume>24</volume>
<numero>spe</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-04712018000400204&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-04712018000400204&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-04712018000400204&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Realizar estudios para medir la biomasa en ecosistemas terrestres es fundamental para evaluar los almacenes de carbono y cómo las especies forestales contribuyen a la mitigación del cambio climático. El objetivo de este estudio fue ajustar ecuaciones alométricas para estimar biomasa aérea y volumen de Pinus halepensis Mill. en la sierra de Zapalinamé, Coahuila. Se partió de la hipótesis de que las variables diámetro basal y altura predicen adecuadamente la biomasa aérea y el volumen de P. halepensis. Se utilizaron 40 árboles, con diámetro basal que varió de 25 cm a 75 cm. La biomasa de fuste y ramas (64%) fue en promedio el doble que la de hojas y ramillas (36%) y su proporción aumentó con respecto a la altura total del árbol, de acuerdo con la ecuación: y = 53.4 + 1.2x. Los mejores ajustes fueron en volumen (R2 = 0.82) y biomasa total (R2 = 0.77) con ecuaciones alométricas de forma lineal logarítmica, con diámetro y altura como variables independientes (lny = &#946;0 + &#946;1 ln(Db 2 H). La biomasa aérea de P. halepensis fue 2.5 veces más pequeña que la de otras especies de coníferas, debido posiblemente a que los árboles de esta especie se ramifican casi desde la base del árbol. En promedio, 85% del árbol presentó ramas de entre 5 cm y 10 cm de diámetro.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Conducting studies to measure biomass in terrestrial ecosystems is essential to assess carbon stores and how forest species contribute to the mitigation of climate change. The objective of this study was to adjust allometric equations to estimate aerial biomass and volumen of Pinus halepensis Mill. in the Sierra de Zapalinamé, Coahuila. It was assumed that the variables basal diameter and height adequately predict aerial biomass and volume of P. halepensis. 40 trees were used, with basal diameter that varied from 25 cm to 75 cm. The biomass of stem and branches (64%) was, on average, double that of leaves and twigs (36%) and its proportion increased with respect to the total height of the tree, according to the equation: y = 53.4 + 1.2x. The best fits were in volume (R2 = 0.82) and total biomass (R2 = 0.77) with allometric equations of logarithmic linear form, with diameter and height as independent variables (lny = &#946;0 + &#946;1 ln (Db 2 H). Aerial biomass of P. halepensis was 2.5 times smaller than that of other coniferous species, possibly due to the fact that the trees of this species branched almost from the base of the tree, on average 85% of the tree presented branches between 5 cm and 10 cm in diameter.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[alometría]]></kwd>
<kwd lng="es"><![CDATA[método destructivo]]></kwd>
<kwd lng="es"><![CDATA[plantación]]></kwd>
<kwd lng="es"><![CDATA[Zapalinamé-Saltillo]]></kwd>
<kwd lng="en"><![CDATA[allometry]]></kwd>
<kwd lng="en"><![CDATA[destructive method]]></kwd>
<kwd lng="en"><![CDATA[plantation]]></kwd>
<kwd lng="en"><![CDATA[Zapalinamé-Saltillo]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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