<?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>S2007-11322017000500064</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Productividad y estructura vertical de un bosque templado con incidencia de incendios forestales]]></article-title>
<article-title xml:lang="en"><![CDATA[Productivity and vertical structure of a temperate forest with incidence of forest fire]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramos Reyes]]></surname>
<given-names><![CDATA[Juan Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Treviño Garza]]></surname>
<given-names><![CDATA[Eduardo Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Buendía Rodríguez]]></surname>
<given-names><![CDATA[Enrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aguirre Calderón]]></surname>
<given-names><![CDATA[Oscar Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López Martínez]]></surname>
<given-names><![CDATA[José Israel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Nuevo León Facultad de Ciencias Forestales ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,INIFAP CIR-Centro ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>10</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>10</month>
<year>2017</year>
</pub-date>
<volume>8</volume>
<numero>43</numero>
<fpage>64</fpage>
<lpage>88</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-11322017000500064&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-11322017000500064&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-11322017000500064&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Se evaluaron las afectaciones ocasionadas por un incendio forestal, la estructura vertical y la asociación de las especies arbóreas y su relación con la productividad a través de variables dasométricas. Se trabajó en dos áreas, una incendiada y otra no incendiada, en las que se establecieron 36 sitios circulares de 11.28 m de radio y de 400 m2. Mediante el índice de Pretzsch, se hizo una clasificación de tres estratos: estrato I (80-100%), estrato II (50-80%) y estrato III (0-50%). Se determinó la productividad utilizando datos dasométricos como densidad individual (ha-1), área basal (m2 ha-1), área de copa (m2 ha-1) y volumen (m3 ha-1). Se hizo un análisis estadístico en el programa r-Studio® (Ver. 3.1.1), mediante una comparación de medias entre grupos independientes de los parámetros dasométricos. El análisis de la estructura vertical se realizó mediante el índice A de Pretzsch, reveló que el área incendiada fue mayor con A  max de 2.71 contra 2.20 de la no incendiada. El estrato II fue el que concentró mayor número de individuos por hectárea, en las dos áreas (50% y 33%), con una altura máxima de 23.9 y 26 m, respectivamente. La productividad fue superior en el área incendiada, lo que se atribuye a la abundancia de Pinus pseudostrobus; mientras que la no incendiada registró menos individuos por hectárea, diferido a menor proporcionalidad en volumen (m3 ha-1). Se concluye que existen beneficios en la estructural y productividad en un bosque sometido a incendio.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: The effects caused by a forest fire, the vertical structure and the association of tree species and their relation to productivity were evaluated through mensuration variables. Field work was performed in two areas, burned and non-burned, in which 36 circular sites of 11.28 m radius and 400 m2 were established. A classification in three strata was made based upon the Pretzsch index: stratum I (80-100%), stratum II (50-80%) and stratum III (0-50%). Productivity was determined using mensuration data as individual density (ha-1), basal area (m2 ha-1), crown area (m2 ha-1) and volume (m3 ha-1). Productivity for statistical analysis was performed by the r-Studio® program (Ver. 3.1.1), through a comparison of means between independent groups of parameters. Analysis of the vertical structure using the A Pretzsch index showed that the burned area was higher with 2.71 against 2.20 A  max in the non-burned area. Stratum II concentrated more individuals per hectare in the two areas (50% and 33%), with a maximum height of 23.9 and 26 m, respectively. Productivity increased in the burned area, which is explained from the Pinus pseudostrobus abundance, while the non-burned area recorded less individuals per hectare, deferred from lower proportionality in volume (m3 ha-1). It is concluded that there are structural and productivity benefits in a forest with fire incidence.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Altura máxima]]></kwd>
<kwd lng="es"><![CDATA[área incendiada]]></kwd>
<kwd lng="es"><![CDATA[estratificación vertical]]></kwd>
<kwd lng="es"><![CDATA[índice A de Pretzsch]]></kwd>
<kwd lng="es"><![CDATA[parámetros dasométricos]]></kwd>
<kwd lng="es"><![CDATA[productividad forestal]]></kwd>
<kwd lng="en"><![CDATA[Maximum height]]></kwd>
<kwd lng="en"><![CDATA[burned area]]></kwd>
<kwd lng="en"><![CDATA[vertical stratification]]></kwd>
<kwd lng="en"><![CDATA[A Pretzsch index]]></kwd>
<kwd lng="en"><![CDATA[mensuration parameters]]></kwd>
<kwd lng="en"><![CDATA[forest productivity]]></kwd>
</kwd-group>
</article-meta>
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