<?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>S0187-57792023000100205</article-id>
<article-id pub-id-type="doi">10.28940/terra.v41i0.1601</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Variación de la calidad del agua en el cauce principal de la cuenca del río Pánuco]]></article-title>
<article-title xml:lang="en"><![CDATA[Variation of water quality in the main channel of the Pánuco river basin]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Avelar-Roblero]]></surname>
<given-names><![CDATA[Juan Uriel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<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[Mancilla-Villa]]></surname>
<given-names><![CDATA[Oscar Raúl]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Khalil-Gardezi]]></surname>
<given-names><![CDATA[Abdul]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendoza-Saldivar]]></surname>
<given-names><![CDATA[Isabel]]></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[Can-Chulim]]></surname>
<given-names><![CDATA[Álvaro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma Chapingo División de Ciencias Forestales ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Colegio de Postgraduados Postgrado en Hidrociencias ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Guadalajara Centro Universitario de la Costa Sur Departamento de Producción Agrícola]]></institution>
<addr-line><![CDATA[Autlán Jalisco]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Tecnológico Nacional de México  ]]></institution>
<addr-line><![CDATA[Apan Hidalgo]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad del Mar Departamento de Ecología ]]></institution>
<addr-line><![CDATA[Pochutla Oaxaca]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Universidad Autónoma de Nayarit Unidad Académica de Agricultura ]]></institution>
<addr-line><![CDATA[Xalisco Nayarit]]></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=S0187-57792023000100205&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-57792023000100205&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-57792023000100205&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: El uso de aguas residuales en el riego agrícola contribuye a mejorar la productividad del suelo y a resolver los problemas de escasez del agua. Sin embargo, también se generan problemas de salinidad y sodicidad en el suelo, toxicidad para las plantas, y problemas de salud pública. En la cuenca del río Pánuco, que se origina en el Valle de México y desemboca en el Golfo de México, se encuentra el Valle del Mezquital, donde se riegan más de 90 000 ha con aguas residuales que llegan a través de diversas vías, entre ellas el Gran Canal del Desagüe. Una parte del agua que se utiliza para el riego se infiltra y se incorpora al cauce del río Tula, que desemboca en la presa Zimapán. A partir de la presa Zimapán, el cauce adquiere el nombre de río Moctezuma y en la parte baja de la cuenca río Pánuco hasta la descarga en el Golfo de México. El objetivo de este trabajo fue evaluar la calidad del agua a lo largo del cauce de la cuenca del río Pánuco mediante el muestreo, las determinaciones en laboratorio y el análisis mediante índices de calidad con criterios agronómicos, y comparar los resultados de la parte alta de la cuenca con la parte baja. Los resultados indican que las aguas residuales que se incorporan al Valle del Mezquital impactan a lo largo de todo el cauce, pero en mayor medida en la parte alta de la cuenca. En todos los puntos de muestreo el agua se clasifica como bicarbonatada-sódica, el índice de CSR indica que el 96% de los sitos presenta algún tipo de restricción para el riego, la CE no es idónea en ninguno de los puntos y la relación de adsorción de sodio (RAS) evidencia riesgos de sodicidad.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Summary: The use of wastewater in agricultural irrigation contributes to improving soil productivity and solving water scarcity problems. However, problems of salinity and sodicity in the soil, toxicity to plants, and public health problems are generated. In the Pánuco River basin, which originates in the Valley of Mexico and flows into the Gulf of Mexico, is the Valle del Mezquital, where approximately 90,000 ha are irrigated with wastewater that arrives through various routes, including the Great Drainage Canal. A part of the water that is used for irrigation infiltrates and is incorporated into the bed of the Tula River, which flows into the Zimapán dam. From the Zimapán dam, the channel acquires the name of the Moctezuma River and in the lower part of the Pánuco River basin until it discharges into the Gulf of Mexico. The objective of this work was to evaluate the water quality along the channel of the Pánuco river basin through sampling, laboratory determinations and analysis through quality indices with agronomic criteria, and to compare the results of the upper part of the basin with the lower part. The results indicate that the wastewater that enters the Mezquital Valley has an impact along the entire channel, but to a greater extent in the upper part of the basin. In all the sample points, the water is classified as bicarbonate-sodium, the RSC index indicates that 96% of the sites present some type of irrigation restriction, the EC is not ideal in any of the points and the sodium adsorption ratio (SAR) evidences sodicity risks.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[CROSS]]></kwd>
<kwd lng="es"><![CDATA[salinidad]]></kwd>
<kwd lng="es"><![CDATA[sodicidad]]></kwd>
<kwd lng="es"><![CDATA[río Moctezuma]]></kwd>
<kwd lng="es"><![CDATA[río Tula]]></kwd>
<kwd lng="en"><![CDATA[CROSS]]></kwd>
<kwd lng="en"><![CDATA[salinity]]></kwd>
<kwd lng="en"><![CDATA[sodicity]]></kwd>
<kwd lng="en"><![CDATA[Moctezuma river]]></kwd>
<kwd lng="en"><![CDATA[Tula river]]></kwd>
</kwd-group>
</article-meta>
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