<?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>S2007-11322022000300004</article-id>
<article-id pub-id-type="doi">10.29298/rmcf.v13i71.1191</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Diversidad y estructura de los árboles de sombra asociados a Coffea arabica L. en el Soconusco, Chiapas]]></article-title>
<article-title xml:lang="en"><![CDATA[Diversity and structure of shadow trees associated with Coffea arabica L. in Soconusco, Chiapas]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reyes Reyes]]></surname>
<given-names><![CDATA[Jorge]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez Morales]]></surname>
<given-names><![CDATA[Juan Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pimienta de la Torre]]></surname>
<given-names><![CDATA[Dorian de Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fuentes Pérez]]></surname>
<given-names><![CDATA[Mario Alonso]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Marroquín Morales]]></surname>
<given-names><![CDATA[Pablo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Merino García]]></surname>
<given-names><![CDATA[Agustín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aguirre Medina]]></surname>
<given-names><![CDATA[Juan Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Chiapas Facultad de Ciencias Agrícolas ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Santiago de Compostela  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma de Chiapas  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2022</year>
</pub-date>
<volume>13</volume>
<numero>71</numero>
<fpage>4</fpage>
<lpage>27</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-11322022000300004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-11322022000300004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-11322022000300004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Los sistemas tradicionales en las zonas productoras de café (Coffea arabica) se desarrollan en ecosistemas bajo sombra, con amplia diversidad de especies de flora y fauna. En la actualidad, la composición florística original se ha modificado por cambios en el establecimiento de Inga spp. Por lo anterior, surge la importancia de conocer la diversidad y estructura arbórea actual del sistema agroforestal en el cultivo de café en el Soconusco, Chiapas. Para tal fin se establecieron 10 unidades de muestreo (UM) al azar en la región media del Soconusco Chiapas; con dimensiones de 1 000 m2 (20 x 50 m). Se registraron variables para identificar su estratificación vertical y horizontal, y se calcularon los Índices de valor de importancia (IVI), diversidad de especies arbóreas, Shannon-Wiener y Simpson. Se identificaron 23 especies arbóreas de una población de 279 árboles; a las plantaciones con mayor edad cronológica les correspondió mayor diversidad y estructura arbórea. La vegetación observada presentó estratos inferiores de &lt;9 m y los superiores de &gt;18 m. Los taxones con más presencia en las UM fueron Tabebuia donnell smithii, Inga micheliana, Cordia alliodora y Cedrela odorata. De acuerdo con los índices de diversidad de Simpson y Shannon-Wiener, la vegetación prevaleciente tiene poca diversidad de especies arbóreas. El mayor Índice de Valor de importancia se registró en Tabebuia donnell smithii e Inga micheliana.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The traditional systems in the coffee (Coffea Arabica) producing areas develop in shady ecosystems with a wide diversity of flora and fauna species. At present, the original floristic composition has been modified by changes in the establishment of a species Inga spp. Therefore, the importance of knowing the diversity and current tree structure of the agroforestry system in coffee cultivation in Soconusco, state of Chiapas arises. For this aim, 10 sampling units (SU) were randomly established in the middle region of Soconusco Chiapas, with dimensions of 1 000 m2 (20 m x 50 m). Variables were recorded to identify their vertical and horizontal stratification, and importance value indexes (IVI), tree species diversity, Shannon-Wiener and Simpson were calculated. 23 tree species were found out of a population of 279 trees and the plantations with the highest chronological age present greater diversity and tree structure. The observed vegetation presents the lower strata ranging from &lt;9 m and upper &gt; 18 m. The species with the greatest presence in the SUs were Tabebuia donnell smithii, Inga micheliana, Cordia alliodora and Cedrela odorata and, according to the Simpson and Shannon diversity indexes, the vegetation that prevails has little tree species diversity. The highest importance value index came from Tabebuia donnell smithii and Inga micheliana.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Árboles de sombra]]></kwd>
<kwd lng="es"><![CDATA[biodiversidad]]></kwd>
<kwd lng="es"><![CDATA[estructura]]></kwd>
<kwd lng="es"><![CDATA[índices de diversidad]]></kwd>
<kwd lng="es"><![CDATA[Inga spp.]]></kwd>
<kwd lng="es"><![CDATA[sistemas agroforestales]]></kwd>
<kwd lng="en"><![CDATA[Shadow trees]]></kwd>
<kwd lng="en"><![CDATA[biodiversity]]></kwd>
<kwd lng="en"><![CDATA[structure]]></kwd>
<kwd lng="en"><![CDATA[diversity indices]]></kwd>
<kwd lng="en"><![CDATA[Inga spp.]]></kwd>
<kwd lng="en"><![CDATA[agroforestry systems]]></kwd>
</kwd-group>
</article-meta>
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