<?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>0120-0135</journal-id>
<journal-title><![CDATA[Revista de Ciencias Agrícolas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Cienc. Agr.]]></abbrev-journal-title>
<issn>0120-0135</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Nariño]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-01352021000200004</article-id>
<article-id pub-id-type="doi">10.22267/rcia.213802.155</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Woody species associated with coffee production systems in southern Colombia]]></article-title>
<article-title xml:lang="es"><![CDATA[Especies leñosas asociadas a los sistemas productivos de café en el sur de Colombia]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ordoñez-Jurado]]></surname>
<given-names><![CDATA[Héctor Ramiro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[Dayana Liseth]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cerón Martínez]]></surname>
<given-names><![CDATA[Marbel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Nariño  ]]></institution>
<addr-line><![CDATA[San Juan de Pasto Nariño]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Nariño  ]]></institution>
<addr-line><![CDATA[San Juan de Pasto Nariño]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Nariño  ]]></institution>
<addr-line><![CDATA[San Juan de Pasto Nariño]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>38</volume>
<numero>2</numero>
<fpage>4</fpage>
<lpage>16</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-01352021000200004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-01352021000200004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-01352021000200004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT In the coffee zone of the town La Unión- Nariño, native or introduced trees are associated with the productive systems of the farms, mainly because they provide shade for coffee crops, where particular aspects such as species biodiversity and silvicultural management are unknown. With the aim of knowing the woody species of common use and the cultural importance, a semi structured survey was applied to 100 coffee growers who were selected at random and aleatorily distributed in three altitudinal ranges: (m a.s.l.): I (&lt;1500), II (1500-1800) and III (&gt; 1800). Species richness was determined for each chosen range; for diversity between ranges, the Jaccard Index (JI) and the Cultural Importance Index (CI) were used. The latter was determined by adding up the intensity of use (IU), frequency of citation (FC), and use value (UV). In the three altitude ranges evaluated, 59 tree species were found. These were distributed in 32 botanical families and 46 genera. The fabaceae family was the most representative, followed by rutaceae, myrtaceae and bignoniaceae; 45.8% of the species were introduced. Among the altitudinal ranges, a low degree similarity was found; ranks I and II shared 24 species, which is equivalent to 33.8% of their floristic composition. As for ranges I and III, they had an even lower degree of similarity: 24.2%; only 17 species were shared. The species I. densiflora had the highest percentage of CI, with 32.92%, followed by C. sinensis with 31.98%; then the species T. gigantea and P. americana with 30.49% and 26.27% respectively. These species were of great importance to coffee growers due to the positive impact they have on the family economy and their contribution to the environmental well-being of production systems.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En la zona cafetera del municipio de La Unión Nariño, los árboles nativos o introducidos, se asocian a los sistemas productivos de las fincas, especialmente como sombra del cultivo del café, en donde se desconoce aspectos particulares como la biodiversidad de especies y manejo silvicultural. Con el objetivo de conocer las especies leñosas de uso común y la importancia cultural, se aplicó una encuesta semiestructurada a 100 productores seleccionados aleatoriamente y distribuidas proporcionalmente en tres rangos altitudinales: I (&lt;1500 msnm), II (1500-1800 msnm) y III (&gt; 1800 msnm). Se determinó la riqueza de especies a nivel de rango, para la diversidad entre rangos, se utilizó el Índice de Jaccard (IJ) y el Índice de importancia cultural (IC), el cual se determinó mediante la sumatoria de la intensidad de uso (IU), frecuencia de mención (FM) y valor de uso (VU). En los tres rangos altitudinales evaluados, se encontraron 59 especies arbóreas, distribuidas en 32 familias botánicas y 46 géneros, la familia fabaceae fue la más representativa, seguida por rutaceae, myrtaceae y bignoniaceae; el 45,8% de las especies son introducidas. Entre los rangos altitudinales existe baja similitud, donde los rangos I y II, comparten 24 especies, equivalente al 33,8% de su composición florística; los rangos I y III, presentan una menor similitud con un 24,2%, comparten 17 especies. La especie I. densiflora presentó el mayor valor en porcentaje del ICC, con un 3,92%, seguida por C. sinensis con 31.98%; a continuación, las especies T. gigantea, y P. americana con 30,49% y 26,27% respectivamente. Las especies identificadas son de gran importancia para los productores, puesto que genera impactos positivos en la economía familiar, y contribuyen al bienestar ambiental de los sistemas productivos.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[tree]]></kwd>
<kwd lng="en"><![CDATA[biodiversity]]></kwd>
<kwd lng="en"><![CDATA[wealth]]></kwd>
<kwd lng="en"><![CDATA[similarity]]></kwd>
<kwd lng="en"><![CDATA[somber]]></kwd>
<kwd lng="es"><![CDATA[árbol]]></kwd>
<kwd lng="es"><![CDATA[biodiversidad]]></kwd>
<kwd lng="es"><![CDATA[riqueza]]></kwd>
<kwd lng="es"><![CDATA[similitud]]></kwd>
<kwd lng="es"><![CDATA[sombrío]]></kwd>
</kwd-group>
</article-meta>
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