<?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>1026-8774</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias geológicas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. cienc. geol]]></abbrev-journal-title>
<issn>1026-8774</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Geología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1026-87742017000300157</article-id>
<article-id pub-id-type="doi">10.22201/cgeo.20072902e.2017.3.433</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Metales pesados en suelos y sedimentos de la zona cañera del sur de Quintana Roo, México]]></article-title>
<article-title xml:lang="en"><![CDATA[Heavy metals in soils and sediments in the sugarcane area of southern Quintana Roo, Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tun-Canto]]></surname>
<given-names><![CDATA[Gibrán Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Álvarez-Legorreta]]></surname>
<given-names><![CDATA[Teresa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zapata-Buenfil]]></surname>
<given-names><![CDATA[Gonzalo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sosa-Cordero]]></surname>
<given-names><![CDATA[Eloy]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,El Colegio de la Frontera Sur  ]]></institution>
<addr-line><![CDATA[Chetumal Quintana Roo]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Nacional de Investigaciones, Forestales Agrícolas y Pecuarias  ]]></institution>
<addr-line><![CDATA[Chetumal Quintana Roo]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<volume>34</volume>
<numero>3</numero>
<fpage>157</fpage>
<lpage>169</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1026-87742017000300157&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1026-87742017000300157&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1026-87742017000300157&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN: Con el objetivo de determinar la presencia y distribución de los metales pesados en la zona cañera de la cuenca del Río Hondo, sur de Quintana Roo, México, se colectaron 10 muestras de sedimentos superficiales del canal de desagüe principal y 18 muestras de suelos superficiales desarrollados sobre un acuífero kárstico en las parcelas aledañas al canal. Las muestras de ambas matrices ambientales fueron tomadas en febrero de 2016, durante la temporada de secas. Se determinaron las concentraciones totales de Hg, Cd, Cu y Fe, y valores fisicoquímicos como el pH, materia orgánica y la capacidad de intercambio catiónico de los suelos. Para comprender la distribución de los metales pesados se obtuvieron parámetros estadísticos descriptivos; además, se hicieron correlaciones de Pearson, análisis de varianza, pruebas t de Student, análisis de componentes principales y de dendrogramas. Las concentraciones promedio de metales pesados encontradas en suelo y sedimentos en orden descendente fueron: Fe &gt; Cu &gt; Cd &gt; Hg con valores en suelo de 25,334.13 mg&#8729;kg-1, 10.56 mg&#8729;kg-1, 0.55 mg&#8729;kg-1 y 0.02 mg&#8729;kg-1, respectivamente; y para sedimento los valores obtenidos fueron 19,952.68 mg&#8729;kg-1, 8.00 mg&#8729;kg-1, 0.54 mg&#8729;kg-1 y 0.06 mg&#8729;kg-1, respectivamente. Los valores de los parámetros fisicoquímicos (pH, materia orgánica y capacidad de intercambio catiónico) resultaron homogéneos dentro del área de estudio. Las concentraciones detectadas de Hg, Cd y Cu podrían provenir de fuentes antropogénicas. Se determinó que el Fe se encuentra de manera natural en el área analizada y su distribución posiblemente ha sido afectada por la actividad agrícola. El factor que determina la distribución de los metales pesados en los suelos agrícolas de la zona cañera es el arrastre de partículas de suelo causado por los escurrimientos, y el mayor aporte de estos contaminantes al drenaje agrícola ocurre principalmente por el arrastre de partículas provenientes de suelos de tipo gleysol.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT: In order to determine the heavy metals content and distribution in an area cultivated with sugarcane in the Río Hondo basin, southern Quintana Roo, Mexico, 10 samples of surficial sediments were collected from the main agricultural drain and 18 samples from soils developed on a karst aquifer. The samples were obtained on february 2016, during the dry season. Concentrations of Hg, Cd, Cu, and Fe and physicochemical parameters such pH, organic matter and cation exchange capacity were measured. In order to understand the distribution of the heavy metals, we performed descriptive statistics, Pearson correlation, analysis of variance, t test, principal component analysis and hierarchical clustering analysis. The mean concentration of heavy metals in soil, in descending order were: Fe &gt; Cu &gt; Cd &gt; Hg with soil values of 25,334.13 mg&#8729;kg-1, 10.56 mg&#8729;kg-1, 0.55 mg&#8729;kg-1 and 0.02 mg&#8729;kg-1, respectively; the sediment values found were 19,952.68 mg&#8729;kg-1, 8.00 mg&#8729;kg-1, 0.54 mg&#8729;kg-1 and 0.06 mg&#8729;kg-1, respectively. The physical and chemical parameters were homogeneous within the study area. The origin of Hg, Cd and Cu concentrations could be anthropogenic. Although Fe is naturally found in the study area, it is possible that the current distribution of this metal is also due to agricultural activity. The main factor in the distribution of heavy metals in the agricultural soils of the sugarcane zone is the carrying of soil particulates caused by runoff, and the greater contribution of these pollutants to the agricultural drain occurs mainly by the entrainment of particulates from gleysol type soils.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Metales pesados]]></kwd>
<kwd lng="es"><![CDATA[karst]]></kwd>
<kwd lng="es"><![CDATA[contaminación del suelo]]></kwd>
<kwd lng="es"><![CDATA[zona cañera]]></kwd>
<kwd lng="es"><![CDATA[Río Hondo]]></kwd>
<kwd lng="es"><![CDATA[México]]></kwd>
<kwd lng="en"><![CDATA[Heavy metals]]></kwd>
<kwd lng="en"><![CDATA[karst]]></kwd>
<kwd lng="en"><![CDATA[soil contamination]]></kwd>
<kwd lng="en"><![CDATA[sugar cane zone]]></kwd>
<kwd lng="en"><![CDATA[Río Hondo]]></kwd>
<kwd lng="en"><![CDATA[Mexico]]></kwd>
</kwd-group>
</article-meta>
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</nlm-citation>
</ref>
</ref-list>
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