<?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>2007-0934</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias agrícolas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Cienc. Agríc]]></abbrev-journal-title>
<issn>2007-0934</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-09342016000902523</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Índices de cambio climático en el estado de Chiapas, México, en el periodo 1960-2009]]></article-title>
<article-title xml:lang="en"><![CDATA[Climate change indices in the state of Chiapas, Mexico, for the period 1960-2009]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mora Orozco]]></surname>
<given-names><![CDATA[Celia de la]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ruíz Corral]]></surname>
<given-names><![CDATA[José Ariel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Flores López]]></surname>
<given-names><![CDATA[Hugo Ernesto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zarazúa Villaseñor]]></surname>
<given-names><![CDATA[Patricia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez Ojeda]]></surname>
<given-names><![CDATA[Gabriela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Medina García]]></surname>
<given-names><![CDATA[Guillermo]]></given-names>
</name>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez Moreno]]></surname>
<given-names><![CDATA[Víctor Manuel]]></given-names>
</name>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chávez Durán]]></surname>
<given-names><![CDATA[Álvaro Agustín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,INIFAP Campo Experimental Centro-Altos de Jalisco ]]></institution>
<addr-line><![CDATA[Tepatitlán de Morelos ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Guadalajara Centro Universitario de Ciencias Biológicas y Agropecuarias ]]></institution>
<addr-line><![CDATA[Zapopan Jalisco]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,INIFAP Campo Experimental Zacatecas ]]></institution>
<addr-line><![CDATA[Calera de Víctor Rosales ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,INIFAP Campo Experimental Pabellón ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2016</year>
</pub-date>
<volume>7</volume>
<numero>spe13</numero>
<fpage>2523</fpage>
<lpage>2534</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342016000902523&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342016000902523&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342016000902523&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En las últimas tres décadas los periodos cálidos han sido superiores a los valores promedio. Se determinó la tendencia de los índices climáticos basados en las temperaturas máximas mínimas y precipitación registradas en las estaciones meteorológicas en el estado de Chiapas, México, en el periodo de 1960 a 2009. Se utilizó la serie histórica de datos de 16 estaciones climatológicas distribuidas en el estado de Chiapas. Para la obtención de los índices climáticos, se utilizó el módulo RClimDex. Los resultados mostraron que el número de estaciones con tendencia positiva significativa es mayor que el número de estaciones con tendencia negativa significativa, de las 16 estaciones climáticas analizadas y 8 índices, 42 combinaciones presentaron tendencia positiva significativa, mientras que sólo 18 presentaron tendencia negativa significativa. Se observó que 63% de las estaciones analizadas resultaron positivas significativas para temperatura máxima extrema (TXx), el 50% para rango diurno de temperatura (DTR), el 44% para temperatura máxima más baja (TXn), el 38% para número de días con temperatura mínima menor que 20°C (TR20), 31% para temperatura mínima más alta (TNx), 25% para temperatura mínima extrema (TNn) y sólo el 6% para número de días con temperatura máxima mayor que 25 °C (SU25) y número de días consecutivos sin lluvia (CDD) respectivamente. En el mapeo de los resultados no se observaron tendencias en alguna zona específica del estado. Todos los índices basados en la temperatura mostraron patrones de comportamiento similar y consistente con tendencia general al calentamiento: Estos hallazgos son consistentes con estudios previos en la región y en otras partes del mundo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract In the last three decades warm periods have been higher than the average values. The trend of climate indices based on the minimum and maximum temperature and precipitation recorded at meteorological stations in the state of Chiapas, Mexico, in the period from 1960 to 2009 were determined. The time series data from 16 weather stations distributed through Chiapas were used. To obtain climatic indices, the RClimDex module was used. The results showed that the number of stations with significant positive trend is higher than the number of stations with significant negative trend, from the 16 weather stations analyzed and 8 indices, 42 combinations had significant positive trend, while 18 had significant negative trend. It was observed that 63% of the stations analyzed were significant positive for extreme maximum temperature (TXx), 50% for diurnal temperature range (DTR), 44% for lower maximum temperature (TXN), 38% for number of days with minimum temperature below 20 °C (TR20), 31% for higher minimum temperature (TNx), 25% for extreme minimum temperature (TNn) and only 6% for number of days with maximum temperature above 25 ° C (SU25) and number of consecutive days without rain (CDD) respectively. In mapping the results no trends were observed in any specific area of th estate. All indices based on temperature showed similar behavior patterns and consistent with overall warming trend: These findings are consistent with previous studies in the region and elsewhere.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[cambio climático]]></kwd>
<kwd lng="es"><![CDATA[Chiapas]]></kwd>
<kwd lng="es"><![CDATA[tendencia]]></kwd>
<kwd lng="es"><![CDATA[temperatura]]></kwd>
<kwd lng="en"><![CDATA[climate change]]></kwd>
<kwd lng="en"><![CDATA[Chiapas]]></kwd>
<kwd lng="en"><![CDATA[temperature]]></kwd>
<kwd lng="en"><![CDATA[trend]]></kwd>
</kwd-group>
</article-meta>
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