<?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>0188-4999</journal-id>
<journal-title><![CDATA[Revista internacional de contaminación ambiental]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Int. Contam. Ambient]]></abbrev-journal-title>
<issn>0188-4999</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Ciencias de la Atmósfera y Cambio Climático]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-49992023000100126</article-id>
<article-id pub-id-type="doi">10.20937/rica.54478</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Calidad agronómica de las aguas residuales en los distritos de riego Tula y Alfajayucan]]></article-title>
<article-title xml:lang="en"><![CDATA[Agronomic quality of wastewater in Tula and Alfajayucan irrigation districts]]></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[Ramírez Ayala]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendoza Saldívar]]></surname>
<given-names><![CDATA[Isabel]]></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-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma Chapingo  División de Ciencias Forestales]]></institution>
<addr-line><![CDATA[ Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Guadalajara  ]]></institution>
<addr-line><![CDATA[Autlán Jalisco]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Tecnológico Superior del Oriente del Estado de Hidalgo  ]]></institution>
<addr-line><![CDATA[ Hidalgo]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<volume>39</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-49992023000100126&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-49992023000100126&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-49992023000100126&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Las aguas residuales aportan nutrientes para los cultivos y aumentan el volumen de agua disponible para el riego, pero representan contingencias como la salinización y sodificación de los suelos, toxicidad en las plantas y riesgos para la salud humana. Con el objetivo de identificar los riesgos de salinización y sodificación de los suelos en los distritos de riego Tula y Alfajayucan, se realizó la caracterización física y química de 70 muestras de agua tomadas en canales, ríos, presas y manantiales. Se realizó el análisis de los parámetros pH y conductividad eléctrica (CE), y se determinó la concentración de los iones Ca2+, Mg2+, Na+, K+, CO3 2-, HCO3 -, Cl-, SO4 2-, B y PO4 3-. Solo el 5.7 % de los sitios muestreados tiene buena calidad agronómica, de acuerdo con la CE; en todos los sitios muestreados predominan los iones Na+, HCO3 - y Cl-, que dan lugar a la formación de las sales NaHCO3 y NaCl, que son tóxicas para la mayoría de los cultivos; existe riesgo de reducción en la infiltración del agua en el suelo en el 65.7 % de los sitios muestreados; en el 87.1 % de los sitios, el boro se encuentra en concentraciones que pueden ser tóxicas para los cultivos, y en el 48.6 % se supera la concentración de 2 mg/L de ortofosfatos. Con los parámetros evaluados, se concluye que la calidad agronómica de las aguas utilizadas en los distritos de riego Tula y Alfajayucan es deficiente, por los riesgos altos de salinización y sodificación del suelo, así como de toxicidad para los cultivos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Wastewater provides nutrients for crops and increases the volume of water available for irrigation, but it represents risks such as salinization and sodification of soils, toxicity to plants, and risks to human health. With the objective of identifying the risks of salinization and sodification of soils in the irrigation districts Tula and Alfajayucan, the physical and chemical characterization of 70 water samples taken from canals, rivers, dams, and springs was carried out. The analysis of the parameters pH and electrical conductivity (EC) was carried out, and the concentration of the next ions was determined: Ca2+, Mg2+, Na+, K+, CO3 2-, HCO3 -, Cl-, SO4 2-, B and PO4 3-. Only 5.7 % of the sampled sites have good agronomic water quality, according to the EC; Na+, HCO3 - and Cl- predominate in all the sampled sites, which give rise to the formation of NaHCO3 and NaCl salts, which are toxic to most crops; there is a risk of infiltration reduction in 65.7 % of the sampled sites; in 87.1 % of the sites, boron is found in concentrations that can be toxic to crops, and in 48.6 % the concentration of 2 mg/L of orthophosphates is exceeded. With the parameters evaluated, it is concluded that the agronomic quality of the water used in Tula and Alfajayucan irrigation districts is deficient, due to the high risks of salinization and sodification of the soil, as well as toxicity to crops.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[calidad del agua]]></kwd>
<kwd lng="es"><![CDATA[suelo]]></kwd>
<kwd lng="es"><![CDATA[salinidad]]></kwd>
<kwd lng="es"><![CDATA[sodicidad]]></kwd>
<kwd lng="es"><![CDATA[sales hipotéticas]]></kwd>
<kwd lng="en"><![CDATA[water quality]]></kwd>
<kwd lng="en"><![CDATA[soil]]></kwd>
<kwd lng="en"><![CDATA[salinity]]></kwd>
<kwd lng="en"><![CDATA[sodicity]]></kwd>
<kwd lng="en"><![CDATA[hypothetical salts]]></kwd>
</kwd-group>
</article-meta>
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