<?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>S0188-49992019000300541</article-id>
<article-id pub-id-type="doi">10.20937/rica.2019.35.03.02</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[PRINCIPALES PROCESOS QUE IMPACTAN LA CALIDAD DEL AGUA PARA EL RIEGO EN POZOS COSTEROS DEL CENTRO SUR CUBANO]]></article-title>
<article-title xml:lang="en"><![CDATA[PROCESSES IMPACTING IRRIGATION WATER QUALITY IN SEVERAL COASTAL WELLS OF CENTER-SOUTHERN CUBA]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Betancourt Aguilar]]></surname>
<given-names><![CDATA[Carmen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tartabull]]></surname>
<given-names><![CDATA[Tania]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Labaut]]></surname>
<given-names><![CDATA[Yeny]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ferradaz]]></surname>
<given-names><![CDATA[Roberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Cienfuegos Centro de Estudios para la Transformación Agraria Sostenible ]]></institution>
<addr-line><![CDATA[Cienfuegos ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Politécnico Felix Varela  ]]></institution>
<addr-line><![CDATA[Cumanayagua Cienfuegos]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Centro de Estudios Ambientales de Cienfuegos Departamento de Gestión Ambiental ]]></institution>
<addr-line><![CDATA[Cienfuegos ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Recursos Hidráulicos  ]]></institution>
<addr-line><![CDATA[Cienfuegos ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<volume>35</volume>
<numero>3</numero>
<fpage>541</fpage>
<lpage>552</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-49992019000300541&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-49992019000300541&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-49992019000300541&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN La calidad del agua constituye una variable a controlar en la agricultura de regadío. El objetivo de la investigación fue identificar los principales procesos que impactaron la calidad del agua para el riego en pozos ubicados en sureste del litoral de la bahía Cienfuegos. Los datos proceden de la empresa Recursos Hidráulicos e incluye las concentraciones de los componentes mayoritarios y la conductividad eléctrica (CE) del agua de siete pozos, durante la etapa 1983-2015. Para facilitar el tratamiento se aplicó un análisis de similitud y se obtuvieron tres grupos de pozos con diferentes características físicas y químicas. La identificación de los procesos influyentes en cada grupo se logró mediante las relaciones iónicas y el análisis de componentes principales. En la caracterización del agua para el riego se usaron los indicadores: salinidad potencial (SP), índice de permeabilidad (IP), relación de adsorción del sodio (RAS), porciento de sodio posible (PSP), carbonato de sodio residual (CSR), CE, dureza total (DT), relación de Kelly (RK) y relación de adsorción del magnesio (RAM). El agua de los tres grupos fue bicarbonatada cálcica, con mayor proporción de estos iones en el primer grupo. Los principales procesos identificados fueron: lavado de la roca, intercambio catiónico, aporte de cloruro y sodio y la salinización de las aguas. El agua cumplió los requisitos establecidos para el riego. Sin embargo, en los pozos del segundo y tercer grupo se observó un incremento en la DT y una disminución del IP vinculado a actividades antrópicas desarrolladas en las cuencas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Water quality is a variable to be controlled in irrigated agriculture. The objective of the present investigation was to identify the main processes that impact water quality for irrigation in wells located in the southeast of the coast of Cienfuegos Bay. A database from Hydraulic Resources enterprise was used, which included the concentrations of the major components and the electrical conductivity of the water of seven wells during the 1983-2013 period. To facilitate the data processing, a similarity analysis was performed that found three groups of wells with different physical and chemical characteristics. The identification of influential processes in each group was achieved through ionic relations and principal component analysis. In the characterization of water for irrigation, the following indicators were used: potential salinity (SP), permeability index (IP), sodium adsorption ratio, possible sodium percentage, residual sodium carbonate, electrical conductivity, total hardness (TH), Kelly relation and adsorption ratio of magnesium. The water of the three groups was calcium carbonate, with a higher proportion of these ions in the first group. The main processes identified were: rock washing, cation exchange, chloride and sodium contribution and salinization of the waters. The water met the requirements for irrigation; however, in the wells of the second and third group, there was an increase in the TH indicator, with a decrease in the PI related to anthropogenic activities developed in the basins.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[salinidad potencial]]></kwd>
<kwd lng="es"><![CDATA[índice de permeabilidad]]></kwd>
<kwd lng="es"><![CDATA[relaciones iónicas]]></kwd>
<kwd lng="es"><![CDATA[actividades antrópicas]]></kwd>
<kwd lng="en"><![CDATA[potential salinity]]></kwd>
<kwd lng="en"><![CDATA[permeability index]]></kwd>
<kwd lng="en"><![CDATA[ionic relations]]></kwd>
<kwd lng="en"><![CDATA[anthropogenic activities]]></kwd>
</kwd-group>
</article-meta>
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