<?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>0121-3709</journal-id>
<journal-title><![CDATA[ORINOQUIA]]></journal-title>
<abbrev-journal-title><![CDATA[Orinoquia]]></abbrev-journal-title>
<issn>0121-3709</issn>
<publisher>
<publisher-name><![CDATA[Instituto de Investigaciones de la Orinoquia Colombiana]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0121-37092017000300076</article-id>
<article-id pub-id-type="doi">10.22579/20112629.433</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Assessing Soil Salinity Risk in the RUT Irrigation District, Colombia]]></article-title>
<article-title xml:lang="es"><![CDATA[Evaluación del riesgo de salinización de los suelos del distrito de riego RUT Colombia]]></article-title>
<article-title xml:lang="pt"><![CDATA[Avaliação do risco de salinização dos solos do distrito de irrigação RUT Colômbia]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Echeverri-Sanchez]]></surname>
<given-names><![CDATA[Andrés F.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Angulo-Rojas]]></surname>
<given-names><![CDATA[Paola A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Saavedra-Corredor]]></surname>
<given-names><![CDATA[Diego M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez]]></surname>
<given-names><![CDATA[Cristo Facundo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Urrutia-Cobo]]></surname>
<given-names><![CDATA[Norberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad del Valle  ]]></institution>
<addr-line><![CDATA[Cali ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad del Valle  ]]></institution>
<addr-line><![CDATA[Cali ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad del Valle  ]]></institution>
<addr-line><![CDATA[Cali ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Surcolombiana  ]]></institution>
<addr-line><![CDATA[Neiva ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad del Valle Facultad de Ingeniería ]]></institution>
<addr-line><![CDATA[Cali ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2017</year>
</pub-date>
<volume>21</volume>
<fpage>76</fpage>
<lpage>82</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0121-37092017000300076&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0121-37092017000300076&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0121-37092017000300076&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The water resources mismanagement is a common concern in the agriculture, and this issue is boosting salinity processes in the Colombian lands. Thus, this paper aimed to assess the soil salinity risk in the RUT irrigation district for sugarcane, grape, and passion fruit by coupling SOSALRIEGO-GIS. First, sources of surface water and their influence areas were identified in the RUT irrigation district. Afterwards, inputs (water ionic constituents, electrical conductivity of rainwater, annual rainfall, crop salt tolerance, soil texture, and leaching fraction) fed in the SOSALRIEGO model, and then, the leaching requirement (LR) of each zone was computed (output) for each crop. Finally, employing GIS, LR values were arranged in categories in order to map the soil salinity risk in the RUT irrigation district for each crop and zone. The soil salinity risk fell into a medium rank for sugarcane, medium to high ranks for grape, and high to very high ranks for passion fruit. Furthermore, the soil salinity risk was higher in zones with poor irrigation water quality. Zones II and III, which canals convey domestic wastewater and drained water fell in greater salinity risk category than zone I, which bears water withdrawal from the Cauca River.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La inadecuada gestión de los recursos hídricos es una preocupación común en la agricultura, y este hecho está impulsando procesos de salinización en los suelos de Colombia. Por lo tanto, este trabajo tuvo como objetivo evaluar el riesgo de salinización del suelo en el distrito de riego RUT para cultivos de caña de azúcar, uva, maracuyá integrando el modelo SOSALRIEGO con SIG. En primer lugar, se identificaron las fuentes hídricas y sus áreas de influencia. Posteriormente, los parámetros de entrada (composición iónica del agua, conductividad eléctrica del agua de lluvia, precipitación anual, tolerancia de cultivos a la salinidad, cultivos, textura del suelo y la eficiencia de lavado) alimentaron el modelo SOSALRIEGO y, a continuación, el Requerimiento de Lavado de sales (RL) fue calculado para cada cultivo. Por último, utilizando SIG, los valores RL se organizaron en categorías con el fin de mapear el riesgo de salinización del suelo en el distrito de riego RUT para cada cultivo en cada zona. El riesgo de salinización se clasificó como medio para caña de azúcar, medio a Alto para la uva, y alto a muy alto para maracuyá. Además, el riesgo salinización del suelo encontrado fue mayor en zonas con baja calidad del agua de riego. Las Zonas II y III, en las cuales los canales conducen aguas residuales domésticas y el agua drenada fueron calificados en categorías superiores de riesgo de salinización que la Zona I, la cual recibe agua extraída directamente del río Cauca.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo A inadequada gestão dos recursos hídricos é uma preocupação comum na agricultura, este fato está impulsando processos de salinização nos solos da Colômbia. Portanto, esta pesquisa objetivou avaliar o risco da salinização dos solos no distrito de irrigação RUT às culturas de cana-de-açúcar, uva e maracujá; integrando o modelo SOSALRIEGO com os Sistemas de Informações Geográficas (SIG). Em primeiro lugar, os parâmetros de entrada (composição iônica da água de irrigação, condutividade elétrica da água de precipitação, precipitação anual, tolerância das culturas à salinidade, culturas, textura do solo e eficiência de lavado de sais) alimentaram o modelo SOSALRIEGO e, seguidamente o requerimento de lavado de sais (RL) foi calculado. Finalmente, usando os SIG, os valores de RL foram categorizados com o objetivo de mapear o risco de salinização dos solos na área de estudo para cada cultura em cada zona. O risco de salinização foi classificado como Médio para a cultura da cana-de-açúcar, Médio a Elevado para a cultura da uva, e Elevado a Muito Elevado para o maracujá. Além disso, o risco de salinização foi maior nas zonas com menor qualidade da água de irrigação. As zonas II e III, cujos canais conduzem águas residuais e de drenagem foram qualificados em categorias maiores de risco do que a zona I, a qual extrai a água diretamente do Rio Cauca.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[irrigation water quality]]></kwd>
<kwd lng="en"><![CDATA[soil salinization]]></kwd>
<kwd lng="en"><![CDATA[SOSALRIEGO]]></kwd>
<kwd lng="en"><![CDATA[risk management.]]></kwd>
<kwd lng="es"><![CDATA[calidad del agua de riego]]></kwd>
<kwd lng="es"><![CDATA[manejo del riesgo]]></kwd>
<kwd lng="es"><![CDATA[salinización de suelos]]></kwd>
<kwd lng="es"><![CDATA[SOSALRIEGO.]]></kwd>
<kwd lng="pt"><![CDATA[qualidade da agua de irrigação]]></kwd>
<kwd lng="pt"><![CDATA[gestão do risco]]></kwd>
<kwd lng="pt"><![CDATA[salinização de solos]]></kwd>
<kwd lng="pt"><![CDATA[SOSALRIEGO.]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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