<?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>S2007-11322020000200092</article-id>
<article-id pub-id-type="doi">10.29298/rmcf.v11i58.665</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Regeneración y estructura vertical de un bosque de Pseudotsuga menziesii (Mirb.) Franco en Chihuahua, México]]></article-title>
<article-title xml:lang="en"><![CDATA[Regeneration and vertical structure of a Pseudotsuga menziesii]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García García]]></surname>
<given-names><![CDATA[Samuel Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alanís Rodríguez]]></surname>
<given-names><![CDATA[Eduardo]]></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[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[Graciano Ávila]]></surname>
<given-names><![CDATA[Gabriel]]></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>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2020</year>
</pub-date>
<volume>11</volume>
<numero>58</numero>
<fpage>92</fpage>
<lpage>111</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-11322020000200092&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-11322020000200092&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-11322020000200092&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Para la caracterización de la estructura vertical de un bosque de Pseudotsuga menziesii en el ejido Chinatú, municipio Guadalupe y Calvo, Chihuahua, se realizó un muestreo aleatorio de ocho sitios circulares de 1 000 m2 dispersos en 80.46 ha. Con la información obtenida se analizó la estructura vertical de la regeneración y del arbolado mediante el Índice A de Pretzsch, se estimó la abundancia (N ha-1), los valores medios, mínimos, máximos y coeficiente de variación de la altura y diámetro normal y cobertura, así como la diversidad con base en el Índice de Shannon-Wiener (H &#769;) y el Índice de Margalef (D  Mg ). Se registraron ocho especies para la comunidad vegetal regenerada, las familias con mayor presencia fueron Pinaceae con cinco especies y Fagaceae con dos; la comunidad vegetal madura registró 10 especies, las más predominantes fueron pinaceae con seis taxones y fagaceae con dos. Las alturas máximas del bosque fueron 8.0 m y 29.0 m para regeneración y arbolado maduro, respectivamente. Con el Índice A de Pretzsch se precisó que el mayor número de individuos se reúne en el estrato III (Bajo) para ambos tipos de árboles. Las especies con mayor regeneración son Abies durangensis, Juniperus deppeana, Quercus tuberculata y Pseudotsuga menziesii, la última de las cuales es dominante en el estrato arbóreo. El bosque estudiado cuenta con una riqueza y diversidad de especies baja, algunas de alto valor ecológico para conservación y con regeneración de la mayoría de las presentes.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract For the characterization of the vertical structure of a Pseudotsuga menziesii forest in the Chinatú ejido, Guadalupe y Calvo municipality, Chihuahua State, eight circular sites of 1 000 m2 dispersed in 80.46 ha were randomly sampled. With the information obtained, the vertical structure of regeneration and standing trees was analyzed using the Pretzsch A Index, abundance (N ha-1), average, minimum, maximum values and coefficient of variation of height and diameter were estimated normal and coverage, as well as diversity based on the Shannon-Wiener Index (H &#769;) and the Margalef Index (DMg). Eight species were registered for the regenerated plant community, the families with the greatest presence were Pinaceae with five species and Fagaceae with two; the mature plant community recorded 10 species, the most predominant being pinaceae with six species and fagaceae with two. The maximum heights of the forest were 8.0 m and 29.0 m for regeneration and mature woodland, respectively. With the Pretzsch Index A it was determined that the largest number of individuals belongs to stratum III (Low) for both types of trees. The species with the highest regeneration are Abies durangensis, Juniperus deppeana, Quercus tuberculata and Pseudotsuga menziesii, the latter of which is dominant in the tree stratum. The studied forest has a low richness and diversity of species, some of high ecological value for conservation and regeneration of the majority of those present.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Diversidad]]></kwd>
<kwd lng="es"><![CDATA[estructura vertical]]></kwd>
<kwd lng="es"><![CDATA[Fagaceae]]></kwd>
<kwd lng="es"><![CDATA[Índice de Pretzsch]]></kwd>
<kwd lng="es"><![CDATA[Pinaceae]]></kwd>
<kwd lng="es"><![CDATA[Sierra Madre Occidental]]></kwd>
<kwd lng="en"><![CDATA[Diversity]]></kwd>
<kwd lng="en"><![CDATA[vertical structure]]></kwd>
<kwd lng="en"><![CDATA[Fagaceae]]></kwd>
<kwd lng="en"><![CDATA[Pretzsch Index]]></kwd>
<kwd lng="en"><![CDATA[Pinaceae]]></kwd>
<kwd lng="en"><![CDATA[Western Sierra Madre]]></kwd>
</kwd-group>
</article-meta>
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