<?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>0188-4611</journal-id>
<journal-title><![CDATA[Investigaciones geográficas]]></journal-title>
<abbrev-journal-title><![CDATA[Invest. Geog]]></abbrev-journal-title>
<issn>0188-4611</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Geografía]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-46111991000200003</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Influencia de la dinámica del paisaje en la distribución de las comunidades vegetales en la cuenca del río Zapotitlán, Puebla]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García Oliva]]></surname>
<given-names><![CDATA[Felipe]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Nacional Autónoma de México Centro de Ecología ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>1991</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>1991</year>
</pub-date>
<numero>23</numero>
<fpage>53</fpage>
<lpage>70</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-46111991000200003&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-46111991000200003&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-46111991000200003&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[En la actualidad se ha reconocido la influencia de la heterogeneidad del paisaje en la estructura de las comunidades vegetales. A escalas geográficas, la dinámica del relieve es determinante para explicar la estructura del paisaje en zonas áridas. Situación que se presenta en el valle semiárido de Zapotitlán de las Salinas, Puebla, en donde se definieron cuatro unidades de paisaje que dependen de la dinámica geomorfológica. Estas unidades influyen significativamente en la distribución de las principales especies de las comunidades vegetales dentro de la cuenca.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[In the recent years, the influence of the landscape's heterogeneity in the structure of plant communities has been recognized. In terms of geographic scales, the geomorphological dynamic is very important to explain the landscape structure in arid lands. The Zapotitlán de las Salinas basin illustrate this situation, where four landscape units may be identified. The landscape units are a result of the geomorphological dynamic. In the same way, the landscape units influence the principal species distribution of the plant communities in the basin.]]></p></abstract>
</article-meta>
</front><body><![CDATA[ <p align="center"><font face="verdana" size="4"><b>Influencia de la din&aacute;mica del paisaje en la distribuci&oacute;n de las comunidades vegetales en la cuenca del r&iacute;o Zapotitl&aacute;n, Puebla</b></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2"><b>Felipe Garc&iacute;a Oliva*</b></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><i>* Centro de Ecolog&iacute;a, Circuito  Exterior, Apdo. Postal 70&#150;275, Universidad Nacional Aut&oacute;noma de M&eacute;xico.</i></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>     <p align="justify"><font face="verdana" size="2">En la actualidad se ha reconocido la influencia de la heterogeneidad  del paisaje en la estructura de las comunidades vegetales. A escalas  geogr&aacute;ficas, la din&aacute;mica del relieve es determinante para  explicar la estructura del paisaje en zonas &aacute;ridas. Situaci&oacute;n que se presenta  en el valle semi&aacute;rido de Zapotitl&aacute;n de las Salinas, Puebla, en donde se  definieron cuatro unidades de paisaje que dependen de la din&aacute;mica  geomorfol&oacute;gica. Estas unidades influyen significativamente en la distribuci&oacute;n  de las principales especies de las comunidades vegetales dentro de la cuenca.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">In the recent years,  the influence of the landscape's heterogeneity in the structure of plant  communities has been recognized. In terms of geographic scales, the  geomorphological dynamic is very important to explain the landscape structure  in arid lands. The Zapotitl&aacute;n de las Salinas basin  illustrate this situation, where four landscape units may be identified. The  landscape units are a result of the geomorphological dynamic. In the same way, the  landscape units influence the principal species distribution of the plant  communities in the basin.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><a href="/pdf/igeo/n23/n23a3.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Referencias</b></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">Brunet, J., "Geologic studies"<i>,</i> en Byers, <i>The Prehistoryc of the Tehuacan Valley</i>, vol. one, University of Texas Press, 1967, p&aacute;gs. 66 87.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4623199&pid=S0188-4611199100020000300001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">Calder&oacute;n Garc&iacute;a, A., "Bosquejo geol&oacute;gico de la regi&oacute;n de San Juan Raya, Puebla"<i>,</i> <i>Congreso Geol&oacute;gico Internacional XX</i>, Libro gu&iacute;a de la excursi&oacute;n A 11,  UNAM, 1956, p&aacute;gs. 9 33.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4623201&pid=S0188-4611199100020000300002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">Chesson, P. 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