<?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>S2007-11322022000400201</article-id>
<article-id pub-id-type="doi">10.29298/rmcf.v13i72.1227</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Caracterización de árboles de riesgo en el Parque Nacional Viveros de Coyoacán, Ciudad de México]]></article-title>
<article-title xml:lang="en"><![CDATA[Risk trees in Viveros de Coyoacán National Park, Mexico City]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Muñoz Gutiérrez]]></surname>
<given-names><![CDATA[Liliana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez Miranda]]></surname>
<given-names><![CDATA[Ramiro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reséndiz Martínez]]></surname>
<given-names><![CDATA[José Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reyes Robles]]></surname>
<given-names><![CDATA[Rodolfo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias Centro Nacional de Investigación Disciplinaria en Conservación y Mejoramiento de Ecosistemas Forestales ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Tecnológica de la Sierra Hidalguense  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2022</year>
</pub-date>
<volume>13</volume>
<numero>72</numero>
<fpage>201</fpage>
<lpage>222</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-11322022000400201&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-11322022000400201&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-11322022000400201&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El arbolado puede representar un riesgo alto tanto para la población humana, como para la infraestructura por su edad, mal desarrollo, deficiente estructura aérea y radical, como por afectaciones de plagas y enfermedades que ocasionan accidentes de leves, hasta fatales. El objetivo fue evaluar el riesgo hacia los usuarios por el arbolado del Parque Nacional Viveros de Coyoacán, Ciudad de México. Se emplearon diferentes indicadores para determinar la condición del sitio, caracterización dasométrica, condición y vitalidad del arbolado, clasificándolos como: 1) riesgo extremo, 2) alto riesgo, 3) riesgo moderado, y 4) bajo riesgo. Se identificaron 21 especies con 299 individuos, de las cuales solo tres taxones constituyen 53 % del total. En cuanto a las etapas de desarrollo: 84.6 % corresponde a juveniles y 15.4 % a maduros. Respecto al DN, 30 % presentan menos de 20 cm y una altura inferior a 15 m, en tanto que 51 % tienen alturas superiores a 18 m. De los individuos, 12 % interfieren en la red eléctrica, 37 % con señalamientos y 9 % obstruye los andadores. Respecto a los troncos, 70 % presentan daños mecánicos, 50 % tienen uniones débiles en las ramas y 60 % tienen úlceras o cancros. Por la condición evaluada, 32 % evidencian riesgo extremo y 12 % riesgo alto. Se recomienda realizar podas de saneamiento y descompactación del suelo. Los criterios e indicadores empleados permiten caracterizar e identificar las condiciones actuales del arbolado del Parque.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Trees in cities may be a high risk for the human population and its infrastructure, due to their age, poor development, deficient aerial and root physical structure, and from plagues and diseases that can cause slight to fatal accidents. The objective of this study was to evaluate the risk that trees in the Viveros de Coyoacán National Park at Mexico City mean for visitors. Different indicators were used to determine the condition of the site, mensuration characterization, condition and vigor of the trees, classifying them as: 1) extreme risk, 2) high risk, 3) moderate risk and 4) low risk. Twenty-one species were identified with 299 individuals, of which only three species make up 53 % of the total number. In terms of developmental stages, 84.6 % are young trees and 15.4 % adults. 30 % have a DN &lt;20 cm and a height under 15 m, while 51 % are taller than 18 m. 12 % interfere with the electrical network, 37 % with signals and 9 % obstruct the walking paths. 70 % of the trunks show mechanical damages, 50 % have weak unions in the branches and 60 % ulcers or cankers. From their hazard, 32 % are of extreme risk and 12 % of high risk. It is recommended to carry out sanitation pruning and soil decompaction. The criteria and indicators used allow a precise diagnosis of the current state of the trees in the park.]]></p></abstract>
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<kwd lng="es"><![CDATA[Áreas verdes urbanas]]></kwd>
<kwd lng="es"><![CDATA[dasonomía urbana]]></kwd>
<kwd lng="es"><![CDATA[evaluación]]></kwd>
<kwd lng="es"><![CDATA[indicadores de condición]]></kwd>
<kwd lng="es"><![CDATA[nivel de riesgo]]></kwd>
<kwd lng="es"><![CDATA[vegetación urbana]]></kwd>
<kwd lng="en"><![CDATA[Urban green areas]]></kwd>
<kwd lng="en"><![CDATA[urban forestry]]></kwd>
<kwd lng="en"><![CDATA[evaluation]]></kwd>
<kwd lng="en"><![CDATA[state indicators]]></kwd>
<kwd lng="en"><![CDATA[risk level]]></kwd>
<kwd lng="en"><![CDATA[urban vegetation]]></kwd>
</kwd-group>
</article-meta>
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