<?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>1405-3322</journal-id>
<journal-title><![CDATA[Boletín de la Sociedad Geológica Mexicana]]></journal-title>
<abbrev-journal-title><![CDATA[Bol. Soc. Geol. Mex]]></abbrev-journal-title>
<issn>1405-3322</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Geológica Mexicana A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-33222018000300591</article-id>
<article-id pub-id-type="doi">10.18268/bsgm2018v70n3a2</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Variabilidad Espacial del Carbono Orgánico e Inorgánico del Suelo en la Comarca Lagunera, México]]></article-title>
<article-title xml:lang="en"><![CDATA[Spatial variability of organic and inorganic carbon in soils of the Comarca Lagunera, México]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Yescas-Coronado]]></surname>
<given-names><![CDATA[Pedro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Álvarez-Reyna]]></surname>
<given-names><![CDATA[Vicente de Paul]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Segura-Castruita]]></surname>
<given-names><![CDATA[Miguel Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Carrillo]]></surname>
<given-names><![CDATA[Mario]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Hernández]]></surname>
<given-names><![CDATA[Vicente]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Cervantes]]></surname>
<given-names><![CDATA[Guillermo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma Agraria, Antonio Narro  ]]></institution>
<addr-line><![CDATA[Torreón Coahuila]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Tecnológico de Torreón  ]]></institution>
<addr-line><![CDATA[Torreón Coahuila]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Centro Nacional de Investigación Disciplinaria en Relación Agua Suelo Planta Atmósfera  ]]></institution>
<addr-line><![CDATA[Gómez Palacio Durango]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2018</year>
</pub-date>
<volume>70</volume>
<numero>3</numero>
<fpage>591</fpage>
<lpage>610</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-33222018000300591&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-33222018000300591&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-33222018000300591&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Las reservas de carbono orgánico, inorgánico y total son controladas parcialmente por la exposición a las condiciones ambientales, la cobertura vegetal y el uso del suelo. La geoestadística ha ayudado a comprender la distribución de los almacenes de carbono (orgánico, inorgánico y total) en el suelo. Sin embargo, existe escasa explicación de los factores que la determinan, específicamente en zonas áridas, y de su variabilidad espacial. Los objetivos de este trabajo fueron determinar las reservas de carbono orgánico e inorgánico en suelos agrícolas de la Comarca Lagunera de México, establecer su distribución y variabilidad espacial mediante el método geoestadístico kriging ordinario y validar los mapas temáticos con datos reales. Las reservas de carbono orgánico, inorgánico y total del suelo de muestras georreferenciadas se examinaron mediante un análisis de la semivarianza; los datos geoestadísticos se interpolaron, para obtener mapas temáticos de predicción de las mismas. Posteriormente, se validaron los mapas con datos de campo. Las reservas de carbono orgánico, inorgánico y total del suelo mostraron variabilidad espacial, cuya dependencia espacial del almacén de carbono orgánico del suelo fue débil (82.4%), mientras que la del carbono inorgánico y total fue moderada (26.6 y 35.0%, respectivamente). Los mapas temáticos de los almacenes de carbono orgánico e inorgánico difirieron, teniendo el mapa de carbono inorgánico un error de 2.01 Mg ha-1 y el de carbono orgánico 4.69 Mg ha-1. El uso y manejo de los suelos en esta área influyeron en la distribución espacial de las reservas de carbono, mientras que la fisiografía, el material parental y el clima intervinieron en la distribución espacial del carbono inorgánico.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Organic, inorganic and total soil carbon stocks are partially controlled by exposure to environmental conditions, vegetation cover and land use. Geostatistics has helped to understand the distribution of carbon stocks (organic, inorganic and total) in the soils. However, there is little explanation of factors that determine it, specifically arid regions, and their spatial variability. The objectives of this work were to determine the organic and inorganic carbon reserves in agricultural soils of the Comarca Lagunera in Mexico, to establish their distribution and spatial variability using ordinary kriging and to validate the thematic maps whit real data. The correlation spatial of organic, inorganic and total soil carbon stocks of georeferenced samples were examined by an analysis of semivariance; the data were interpolated to obtain thematic maps of prediction of the different carbon stocks. Subsequently, the maps were validated with field data. The organic, inorganic and total soil carbon stocks showed spatial correlation, which was weak for the soil organic carbon storage (82.4%), and moderate for the inorganic and total carbon (26.6 and 35.0%, respectively). The thematic maps of organic and inorganic carbon stores differed, with the inorganic carbon map having an error of 2.01 Mg ha-1, which was lower than that of organic carbon (4.69 Mg ha-1). The use and management of soils in this area influenced the spatial distribution of carbon stocks, while physiography, parent material and climate intervened in the spatial distribution of inorganic carbon.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[materia orgánica]]></kwd>
<kwd lng="es"><![CDATA[carbonatos]]></kwd>
<kwd lng="es"><![CDATA[geoestadística]]></kwd>
<kwd lng="es"><![CDATA[zonas áridas]]></kwd>
<kwd lng="en"><![CDATA[Organic matter]]></kwd>
<kwd lng="en"><![CDATA[carbonates]]></kwd>
<kwd lng="en"><![CDATA[geostatistics]]></kwd>
<kwd lng="en"><![CDATA[arid region]]></kwd>
</kwd-group>
</article-meta>
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