<?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>0187-5779</journal-id>
<journal-title><![CDATA[Terra Latinoamericana]]></journal-title>
<abbrev-journal-title><![CDATA[Terra Latinoam]]></abbrev-journal-title>
<issn>0187-5779</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de la Ciencia del Suelo A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0187-57792023000100209</article-id>
<article-id pub-id-type="doi">10.28940/terra.v41i0.1606</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Caracterización de la salinidad en suelos de la planicie del río San Pedro, Nayarit, México]]></article-title>
<article-title xml:lang="en"><![CDATA[Characterization of the salinity in soils of the San Pedro River floodplain, Nayarit, Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortega-Escobar]]></surname>
<given-names><![CDATA[Héctor Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Rodríguez]]></surname>
<given-names><![CDATA[Oscar Germán]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Can-Chulim]]></surname>
<given-names><![CDATA[Álvaro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cruz-Crespo]]></surname>
<given-names><![CDATA[Elia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bojórquez-Serrano]]></surname>
<given-names><![CDATA[José Irán]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Paredes]]></surname>
<given-names><![CDATA[Juan Diego]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Bernal]]></surname>
<given-names><![CDATA[Edgar Iván]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Madueño-Molina]]></surname>
<given-names><![CDATA[Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mancilla-Villa]]></surname>
<given-names><![CDATA[Oscar Raúl]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Colegio de Postgraduados Campus Montecillo ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de Nayarit  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Unidad Académica de Agricultura  ]]></institution>
<addr-line><![CDATA[Xalisco Nayarit]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad del Mar Campus Puerto Escondido ]]></institution>
<addr-line><![CDATA[San Pedro Mixtepec Oaxaca]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad de Guadalajara Centro Universitario de la Costa Sur ]]></institution>
<addr-line><![CDATA[Autlán Jalisco]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<volume>41</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-57792023000100209&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-57792023000100209&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-57792023000100209&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: La planicie del río San Pedro, que tiene una formación fluvio-deltaica, es una de las superficies costeras que fueron afectadas por la intrusión marina durante la última glaciación. En esta zona, la agricultura es la principal actividad económica, sin embargo, las actividades agrícolas intensivas, su pasado geo-morfológico, la actual interdependencia con el sistema marino y el transporte de sales a través de los sedimentos y aguas, hacen que esta región sea susceptible a la acumulación de sales en los suelos. Con el objetivo de caracterizar la salinidad de la superficie agrícola de la planicie del río San Pedro, se hicieron dos muestreos de suelos en 91 sitios en un periodo de dos años. Se tomaron muestras de 0.0 a 0.3 m y de 0.0 a cada 0.1 m hasta profundidades de 1 m y 3 m. Se recolectaron 50 muestras de agua freática, además se obtuvieron extractos de saturación (1: &#952;sat) de las distintas muestras de suelos. A los extractos de suelo y aguas freáticas, se les determinó el pH, CE, cationes y aniones mayoritarios, se calculó el parámetro relación de adsorción de sodio en su formulación original y ajustada (RAS  or , RAS  aj ) y el porciento de sodio intercambiable (PSI). El pH, CE y RAS  or del agua freática estuvieron dentro de los intervalos de 6.94-8.37, 199-4660 µS cm-1 y 0.16-32.30 (mmolc L-1)1/2, mientras que en los extractos de saturación entre 4.81-8.58, 0.08-72.4 dS m-1 y 0.11-33.09 (mmolc L-1)1/2 respectivamente. Los problemas de salinidad en la zona de estudio están estrechamente relacionados con la intrusión de sales provenientes del sistema marino.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Summary: The floodplain of the San Pedro River, a fluvial-delta formation, is one of the coastal areas affected by marine intrusion during the last glaciation. In this region, agriculture is the main economic activity; however, intensive agricultural practices, the geological past, current interactions with the marine system and the transport of salts through sediments and water make this area susceptible to soil salinization. To characterize the salinity of the agricultural area of the San Pedro River floodplain, two soil samplings were carried out at 91 sites over a period of two years. Samples were taken from depths of 0.0 to 0.3 m and from 0.0 to 0.1 m to depths of 1 m and 3 m. Fifty groundwater samples were collected. Saturation extracts were obtained (1: &#952;sat) from the soil samples. For the soil and groundwater extracts, the pH, EC, and major cations and anions were determined, the sodium adsorption ratio was calculated in the original and adjusted formulations (SAR  or and SAR  adj ), and the exchangeable sodium percentage (ESP) was ascertained. The pH, EC and SAR  or of the groundwater ranged from 6.94 to 8.37, 199 to 4660 µS cm-1 and 0.16 to 32.30 (mmolc L-1)1/2, while in the saturation extracts, the pH, EC and SAR  or ranged from 4.81 to 8.58, 0.08 to 72.4 dS m-1 and 0.11 to 33.09 (mmolc L-1)1/2, respectively. The salinity problems in the study area are closely related to the intrusion of salts from the marine system.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[agua freática]]></kwd>
<kwd lng="es"><![CDATA[origen de suelos salinos]]></kwd>
<kwd lng="es"><![CDATA[PSI]]></kwd>
<kwd lng="es"><![CDATA[RAS ajustado]]></kwd>
<kwd lng="es"><![CDATA[sodicidad]]></kwd>
<kwd lng="en"><![CDATA[groundwater]]></kwd>
<kwd lng="en"><![CDATA[origin of saline soils]]></kwd>
<kwd lng="en"><![CDATA[ESP]]></kwd>
<kwd lng="en"><![CDATA[adjusted SAR]]></kwd>
<kwd lng="en"><![CDATA[sodicity]]></kwd>
</kwd-group>
</article-meta>
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