<?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>0871-018X</journal-id>
<journal-title><![CDATA[Revista de Ciências Agrárias]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. de Ciências Agrárias]]></abbrev-journal-title>
<issn>0871-018X</issn>
<publisher>
<publisher-name><![CDATA[Sociedade de Ciências Agrárias de Portugal]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0871-018X2022000300971</article-id>
<article-id pub-id-type="doi">10.19084/rca.28724</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Distribución de metales traza en perfiles de suelos urbanos]]></article-title>
<article-title xml:lang="en"><![CDATA[Depth distribution of trace elements in urban soil profiles]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Roo]]></surname>
<given-names><![CDATA[María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herbón]]></surname>
<given-names><![CDATA[Cecilia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barral]]></surname>
<given-names><![CDATA[María Teresa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pontevedra-Pombal]]></surname>
<given-names><![CDATA[Xabier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Rodeja]]></surname>
<given-names><![CDATA[Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Paradelo]]></surname>
<given-names><![CDATA[Remigio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidade de Santiago de Compostela Departamento de Edafoloxía e Química Agrícola ]]></institution>
<addr-line><![CDATA[Santiago de Compostela ]]></addr-line>
<country>Spain</country>
</aff>
<pub-date pub-type="pub">
<day>30</day>
<month>12</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>30</day>
<month>12</month>
<year>2022</year>
</pub-date>
<volume>45</volume>
<numero>4</numero>
<fpage>971</fpage>
<lpage>980</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S0871-018X2022000300971&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S0871-018X2022000300971&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S0871-018X2022000300971&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Los suelos son un componente importante de los ecosistemas urbanos, pero sus funciones pueden verse afectadas negativamente por el aumento de la población urbana previsto para las próximas décadas. Entre los problemas que sufren los suelos urbanos, se destaca la acumulación de contaminantes inorgánicos. Este trabajo analiza las concentraciones de Pb, Cu, Zn, Ni y Cr en seis suelos de la ciudad de Santiago de Compostela (noroeste de España), tres de ellos desarrollados en condiciones naturales y tres formados sobre materiales transportados/alterados por actividades humanas. En dos de los suelos naturales las concentraciones de los metales traza muestran una tendencia clara a descender en profundidad, lo que sugiere que el aporte procede de la contaminación del entorno. En el otro suelo natural, formado sobre anfibolitas, esta tendencia solo se cumple para el Pb, mientras que el Cu, Ni y Cr aumentan en profundidad, lo que puede explicarse por la naturaleza del material de partida. Por el contrario, en ninguno de los tres suelos artificiales se observa una tendencia clara en la distribución de los metales en profundidad.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Soils are an important component of urban ecosystems, but their ecosystemic functions may be negatively affected by the growth in urban population projected for the next decades. Among the problems that affect urban soils, the accumulation of inorganic contaminants such as heavy metals is one of the most challenging. In this study we analized the concentrations of Pb, Cu, Zn, Ni and Cr in six soil profiles of the city of Santiago de Compostela (northwestern Spain). Three of them are developed under natural conditions, and the other three are developed over human altered and transported materials. In two of the natural soils, trace metal concentrations show a clear trend to decrease with depth, suggesting that metals come from the environmental pollution. In the other natural soil, developed from amphibiles, this trend is only true for Pb , while Cu, Zn, Ni and Cr increase in depth, which can be explained by the particular lithology of this soil. On the contrary, in none of the three artificial soils a clear trend in the distribution of trace element concentrations with depth is observed.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[suelos urbanos]]></kwd>
<kwd lng="es"><![CDATA[metales]]></kwd>
<kwd lng="es"><![CDATA[contaminación]]></kwd>
<kwd lng="en"><![CDATA[urban soils]]></kwd>
<kwd lng="en"><![CDATA[metals]]></kwd>
<kwd lng="en"><![CDATA[pollution]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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</back>
</article>
