<?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>0186-7210</journal-id>
<journal-title><![CDATA[Estudios demográficos y urbanos]]></journal-title>
<abbrev-journal-title><![CDATA[Estud. demogr. urbanos]]></abbrev-journal-title>
<issn>0186-7210</issn>
<publisher>
<publisher-name><![CDATA[El Colegio de México A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0186-72102020000100051</article-id>
<article-id pub-id-type="doi">10.24201/edu.v35i1.1828</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Factores del deterioro de las áreas naturales protegidas periurbanas del Valle de Puebla, México]]></article-title>
<article-title xml:lang="en"><![CDATA[Factors of deterioration of the periurban protected natural areas of the Valley of Puebla, Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tlapa Almonte]]></surname>
<given-names><![CDATA[Margarita]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bustamante González]]></surname>
<given-names><![CDATA[Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vargas López]]></surname>
<given-names><![CDATA[Samuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez Valverde]]></surname>
<given-names><![CDATA[Benito]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cervantes Gutiérrez]]></surname>
<given-names><![CDATA[Virginia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cruz Bello]]></surname>
<given-names><![CDATA[Gustavo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Reserva Ecológica Zapotecas, A.C.  ]]></institution>
<addr-line><![CDATA[San Pedro Cholula Puebla]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[San Pedro Cholula Puebla]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad Autónoma Metropolitana  ]]></institution>
<addr-line><![CDATA[Xochimilco Ciudad de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Universidad Autónoma Metropolitana  ]]></institution>
<addr-line><![CDATA[Cuajimalpa Ciudad de México]]></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>35</volume>
<numero>1</numero>
<fpage>51</fpage>
<lpage>82</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0186-72102020000100051&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0186-72102020000100051&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0186-72102020000100051&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En la interfase ciudad-comunidades rurales del área metropolitana del Valle de Puebla se tienen establecidas siete áreas naturales protegidas periurbanas. El objetivo de esta investigación fue tener un diagnóstico exploratorio de su condición actual y de los factores que inciden en su pérdida territorial y deterioro ecológico. Estas áreas no están funcionando como estrategias de conservación debido a que carecen de una delimitación espacial precisa y de un plan de manejo, son desconocidas por la mayoría de los habitantes del área, carecen de un presupuesto para su gestión, hay venta de tierras y persisten las actividades productivas y extractivas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract In the city-rural communities interface of the Puebla Valley seven periurban protected natural areas have been established. The objective of this investigation was to have an exploratory diagnosis of their current status and of the factors that affect their territorial loss and its ecological deterioration. These areas are not functioning as conservation strategies, because they lack a precise spatial delimitation and a management plan, they are unknown to most of the inhabitants of the area, they lack a budget for their management, the sale of lands and the productive and extractive activities.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[áreas naturales protegidas]]></kwd>
<kwd lng="es"><![CDATA[áreas periurbanas]]></kwd>
<kwd lng="es"><![CDATA[deterioro ambiental]]></kwd>
<kwd lng="es"><![CDATA[amenazas ambientales]]></kwd>
<kwd lng="en"><![CDATA[protected natural areas]]></kwd>
<kwd lng="en"><![CDATA[periurban areas]]></kwd>
<kwd lng="en"><![CDATA[environmental deterioration]]></kwd>
<kwd lng="en"><![CDATA[environmental threats]]></kwd>
</kwd-group>
</article-meta>
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