<?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>2007-9028</journal-id>
<journal-title><![CDATA[Ecosistemas y recursos agropecuarios]]></journal-title>
<abbrev-journal-title><![CDATA[Ecosistemas y recur. agropecuarios]]></abbrev-journal-title>
<issn>2007-9028</issn>
<publisher>
<publisher-name><![CDATA[Universidad Juárez Autónoma de Tabasco, Dirección de Investigación y Posgrado]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-90282017000300485</article-id>
<article-id pub-id-type="doi">10.19136/era.a4n12.1320</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Duración del periodo de lluvias y aptitud de tierras para la agricultura de temporal]]></article-title>
<article-title xml:lang="en"><![CDATA[Duration of the rain period and land suitability for rainfed agriculture]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Delgado]]></surname>
<given-names><![CDATA[Carmen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bautista]]></surname>
<given-names><![CDATA[Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ihl]]></surname>
<given-names><![CDATA[Thomas]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Palma-López]]></surname>
<given-names><![CDATA[David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro de Investigación Científica de Yucatán Unidad de Recursos Naturales ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México Centro de Investigaciones en Geografía Ambiental ]]></institution>
<addr-line><![CDATA[Morelia Michoacán]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Colegio de Posgraduados  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</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>4</volume>
<numero>12</numero>
<fpage>485</fpage>
<lpage>497</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-90282017000300485&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-90282017000300485&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-90282017000300485&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: El concepto duración del periodo de lluvias (DPLL) es una propuesta de mejoramiento de otro denominado longitud del periodo de crecimiento (LPC). El objetivo fue realizar un mapa de aptitud para la agricultura de temporal basado en la selección de un modelo de la duración del periodo de lluvias con el índice de humedad. Se utilizaron los datos de 65 estaciones meteorológicas del estado de Yucatán y zonas circundantes. Se analizó la relación entre el resultado del modelo con el mapa de la vegetación potencial. Se encontró que el índice de humedad es mayor cuando proviene del método de Thornthwaite (MT), con el que se obtuvo el mejor modelo cartográfico con valor de definición de un mes húmedo cuando es mayor a 0.65. El variograma fue tipo Gaussiano con una r2 = 0.98 y el porcentaje de la varianza explicada C/(C0+C) = 74 %. La validación cruzada de la interpolación presentó una r= 0.63 y la raíz cuadrada del error cuadrático medio (RECM) = 1.34. Los cinco intervalos de meses húmedos de interés agrícola fue de tres a cuatro meses, de cuatro a cinco meses, de cinco a seis meses, de seis a siete meses, y de siete a ocho meses.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: The concept of rainfall season duration (DPLL) is an improvement of another concept known as length of the growing season (LPC). The objective was to develop a suitability map for rainfed agriculture, based on the selection of a rainfall season duration model that includes the humidity index. Data from 65 weather stations in the state of Yucatan and surrounding areas were used. The relationship between the result of the model and the potential vegetation map was analyzed. The humidity index was higher when the Thornthwaite method (MT) was used; this method was also used to obtain the best cartographic model, defining a humid month as the period in which humidity was higher than 0.65. The Gaussian variogram was used, with r2 = 0.98 and a percentage of explained variance of C/(C0+C) = 74 %. The cross-validation of the interpolation showed a r = 0.63 and a square root of the mean square error (RECM) = 1.34. For agricultural purposes, five intervals of humid months were recorded: three to four months, four to five months, five to six months, six to seven months, and seven to eight months.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Evapotranspiración]]></kwd>
<kwd lng="es"><![CDATA[geoestadística]]></kwd>
<kwd lng="es"><![CDATA[índice de humedad]]></kwd>
<kwd lng="es"><![CDATA[precipitación]]></kwd>
<kwd lng="es"><![CDATA[Thornthwaite]]></kwd>
<kwd lng="en"><![CDATA[Evapotranspiration]]></kwd>
<kwd lng="en"><![CDATA[geostatistic]]></kwd>
<kwd lng="en"><![CDATA[humidity index]]></kwd>
<kwd lng="en"><![CDATA[pluvial precipitation]]></kwd>
<kwd lng="en"><![CDATA[Thornthwaite]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aguilar]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Bautista]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Extrapolating the suitability of soils as natural reactors using an existing soil map: application of pedotransfer functions, spatial integration and validation procedures]]></article-title>
<source><![CDATA[Tropical and Subtropical Agroecosystems]]></source>
<year>2011</year>
<volume>13</volume>
<page-range>221-32</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Allen]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Pereira]]></surname>
<given-names><![CDATA[LS]]></given-names>
</name>
<name>
<surname><![CDATA[Raes]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Smith]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<source><![CDATA[Crop evapotranspiration: guidelines for computing crop wáter requirements]]></source>
<year>1998</year>
<publisher-loc><![CDATA[Rome, Italy ]]></publisher-loc>
<publisher-name><![CDATA[FAO Irrigation and Drainage]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bautista]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Mizrahi]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Diagnóstico campesino de la situación agrícola en Hocabá, Yucatán]]></article-title>
<source><![CDATA[Terra Latinoamericana]]></source>
<year>2005</year>
<volume>23</volume>
<page-range>571-80</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bautista]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Bautista]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Delgado-Carranza]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Calibration of the equations of Hargreaves and Thornthwaite to estimate the potential evapotranspiration in semi-arid and subhumid tropical climates for regional applications]]></article-title>
<source><![CDATA[Atmósfera]]></source>
<year>2009</year>
<volume>22</volume>
<page-range>331-48</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bautista]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Bautista-Hernández]]></surname>
<given-names><![CDATA[DA]]></given-names>
</name>
<name>
<surname><![CDATA[Álvarez-Arriaga]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[De la Rosa]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Software to identified climate change trends at the local level: a study case in Yucatán, México]]></article-title>
<source><![CDATA[Revista Chapingo Serie Ciencias Forestales y del Ambiente]]></source>
<year>2013</year>
<volume>19</volume>
<page-range>81-90</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bautista]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Frausto]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Ihl]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Aguilar]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Actualización del mapa de suelos del estado de Yucatán México: Un enfoque geomorfopedológico y WRB]]></article-title>
<source><![CDATA[Ecosistemas y Recursos Agropecuarios]]></source>
<year>2015</year>
<volume>2</volume>
<page-range>303-15</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bautista]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Pacheco]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Bautista-Hernández]]></surname>
<given-names><![CDATA[DA]]></given-names>
</name>
</person-group>
<source><![CDATA[Análisis del cambio climático con datos mensuales (Clic-MD)]]></source>
<year>2016</year>
<publisher-loc><![CDATA[México ]]></publisher-loc>
<publisher-name><![CDATA[Skiu]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Delgado]]></surname>
<given-names><![CDATA[CC]]></given-names>
</name>
<name>
<surname><![CDATA[Pacheco]]></surname>
<given-names><![CDATA[AJ]]></given-names>
</name>
<name>
<surname><![CDATA[Cabrera]]></surname>
<given-names><![CDATA[SA]]></given-names>
</name>
<name>
<surname><![CDATA[Batllori]]></surname>
<given-names><![CDATA[SE]]></given-names>
</name>
<name>
<surname><![CDATA[Orellana]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Bautista]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Quality of groundwater for irrigation in tropical karst environment: The case of Yucatán, Mexico]]></article-title>
<source><![CDATA[Agricultural Water Management]]></source>
<year>2010</year>
<volume>97</volume>
<page-range>1423-33</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Delgado]]></surname>
<given-names><![CDATA[CC]]></given-names>
</name>
<name>
<surname><![CDATA[Bautista]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Orellana-Lanza]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Reyes-Hernández]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Classification and agroclimatic zoning using the relationship between precipitation and evapotranspiration in the state of Yucatan, Mexico]]></article-title>
<source><![CDATA[Investigaciones Geográficas]]></source>
<year>2011</year>
<volume>75</volume>
<page-range>51-60</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dzib-Aguilar]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Segura-Correa]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Ortega-Paczka]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Latournerie-Moreno]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cruzas dialélicas ente poblaciones nativas de maíz de Yucatán y poblaciones mejoradas]]></article-title>
<source><![CDATA[Tropical and Subtropical Agroecosystems]]></source>
<year>2011</year>
<volume>14</volume>
<page-range>119-27</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Estrada-Medina]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Cobos-Gasca]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Acosta-Rodríguez]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
<name>
<surname><![CDATA[Peña]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Castilla-Martínez]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Castillo-Carrillo]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[La sequía de la península de Yucatán]]></article-title>
<source><![CDATA[Tecnología y Ciencias del Agua]]></source>
<year>2016</year>
<volume>7</volume>
<page-range>151-65</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="book">
<collab>FAO</collab>
<source><![CDATA[Agro-ecological zoning: Guidelines]]></source>
<year>1996</year>
<publisher-loc><![CDATA[Rome, Italy ]]></publisher-loc>
<publisher-name><![CDATA[FAO Soil Resources, Management and Conservation Service, Land and Water Development Division]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<source><![CDATA[Modificaciones al sistema de clasificación climática de Köppen]]></source>
<year>2004</year>
<edition>5</edition>
<publisher-loc><![CDATA[México ]]></publisher-loc>
<publisher-name><![CDATA[Instituto de Geografía. Universidad Nacional Autónoma de México]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hargreaves]]></surname>
<given-names><![CDATA[GH]]></given-names>
</name>
<name>
<surname><![CDATA[Samani]]></surname>
<given-names><![CDATA[ZA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Reference crop evapotranspiration from temperature]]></article-title>
<source><![CDATA[Applied Engineering in Agriculture]]></source>
<year>1985</year>
<volume>1</volume>
<page-range>96-9</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hargreaves]]></surname>
<given-names><![CDATA[DA]]></given-names>
</name>
<name>
<surname><![CDATA[Hargreaves]]></surname>
<given-names><![CDATA[GH]]></given-names>
</name>
<name>
<surname><![CDATA[Riley]]></surname>
<given-names><![CDATA[JP]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Irrigation water requirements for Senegal river basin]]></article-title>
<source><![CDATA[Journal of Irrigation and Drainage Division]]></source>
<year>1985</year>
<volume>3</volume>
<page-range>265-75</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hernández-Stefanoni]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
<name>
<surname><![CDATA[Ponce-Hernández]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mapping the spatial variability of plant diversity in a tropical forest: comparison of spatial interpolation methods]]></article-title>
<source><![CDATA[Environmental Monitoring and Assessment]]></source>
<year>2006</year>
<volume>117</volume>
<page-range>307-34</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Holden]]></surname>
<given-names><![CDATA[NM]]></given-names>
</name>
<name>
<surname><![CDATA[Brereton]]></surname>
<given-names><![CDATA[AJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Definition of agroclimatic regions in Ireland using hydro-thermal and crop yield data]]></article-title>
<source><![CDATA[Agricultural and Forest Meteorology]]></source>
<year>2004</year>
<volume>122</volume>
<page-range>175-91</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="book">
<collab>INEGI</collab>
<source><![CDATA[Población del Estado de Yucatán del censo 2010]]></source>
<year>2013</year>
<publisher-name><![CDATA[Instituto Nacional de Estadística y Geografía]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kelso]]></surname>
<given-names><![CDATA[HA]]></given-names>
</name>
<name>
<surname><![CDATA[Mamadou]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Magaña]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Sánchez Morález]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[López]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Recalibración regional de Hargreaves (HE y KRS) en México]]></article-title>
<source><![CDATA[Revista Ingeniería Agrícola]]></source>
<year>2014</year>
<volume>4</volume>
<page-range>14-8</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Latournerie]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Tuxill]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Yupit]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Arias]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Cristobal]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Jarvis]]></surname>
<given-names><![CDATA[DI]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Traditional maize storage methods of Mayan farmers in Yucatan, Mexico: implications for seed selection and crop diversity]]></article-title>
<source><![CDATA[Biodiversity and Conservation]]></source>
<year>2006</year>
<volume>15</volume>
<page-range>1771-95</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Márdero]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Nickl]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Schmook]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Schneider]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Rogan]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Christman]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
<name>
<surname><![CDATA[Lawrence]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sequías en el sur de la península de Yucatán: análisis de la variabilidad anual y estacional de la precipitación]]></article-title>
<source><![CDATA[Investigaciones Geográficas]]></source>
<year>2012</year>
<volume>78</volume>
<page-range>19-33</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mariaca]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Castillo]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Moguel]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Análisis estadístico de una milpa experimental de ocho años de cultivo continuo bajo roza, tumba y quema en Yucatán, México]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Bello]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Levy]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<source><![CDATA[La milpa en Yucatán: un sistema de producción agrícola tradicional]]></source>
<year>1995</year>
<numero>2</numero>
<issue>2</issue>
<page-range>339-68</page-range><publisher-loc><![CDATA[Montecillo, estado de México ]]></publisher-loc>
<publisher-name><![CDATA[Colegio de Postgraduados]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Olmsted]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[González-Iturbe]]></surname>
<given-names><![CDATA[JA]]></given-names>
</name>
<name>
<surname><![CDATA[Granados]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Durán]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Tun]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Vegetación]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[FA]]></given-names>
</name>
<name>
<surname><![CDATA[Córdoba]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Ordoñez]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Chico]]></surname>
<given-names><![CDATA[PLPA]]></given-names>
</name>
</person-group>
<source><![CDATA[Atlas de Procesos territoriales en Yucatán]]></source>
<year>1999</year>
<page-range>282-93</page-range><publisher-loc><![CDATA[Mérida, Yucatán ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Autónoma de Yucatán]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Orellana]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Balam]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Bañuelos]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[González-Iturbe]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Herrera]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Vidal]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluación climática]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[García de Fuentes]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Córdoba]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Ordoñez]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Chico Ponce de León]]></surname>
<given-names><![CDATA[PA]]></given-names>
</name>
</person-group>
<source><![CDATA[Atlas de Procesos territoriales en Yucatán]]></source>
<year>1999</year>
<page-range>163-77</page-range><publisher-loc><![CDATA[Mérida, Yucatán ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Autónoma de Yucatán]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Robertson]]></surname>
<given-names><![CDATA[GP]]></given-names>
</name>
</person-group>
<source><![CDATA[GS+: Geostatistics for the Environmental Sciences]]></source>
<year>2008</year>
<page-range>172</page-range><publisher-loc><![CDATA[Michigan, USA ]]></publisher-loc>
<publisher-name><![CDATA[Gamma Design Software, Plainwell]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="">
<collab>SAGARPA</collab>
<source><![CDATA[Indicadores estatales agroeconómicos. Subsecretaría de fomento a los negocios. Secretaría de Agricultura, Ganadería, Desarrollo Rural, Pesca y Alimentación]]></source>
<year>2011</year>
</nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Stigter]]></surname>
<given-names><![CDATA[CJ]]></given-names>
</name>
<name>
<surname><![CDATA[Dawei]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
<name>
<surname><![CDATA[Onyewotu]]></surname>
<given-names><![CDATA[LOZ]]></given-names>
</name>
<name>
<surname><![CDATA[Xurong]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Using traditional methods and indigenous technologies for croping with climate variability]]></article-title>
<source><![CDATA[Climate Change]]></source>
<year>2005</year>
<volume>70</volume>
<page-range>255-71</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Terán]]></surname>
<given-names><![CDATA[SCh]]></given-names>
</name>
<name>
<surname><![CDATA[Rasmussen]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<source><![CDATA[La milpa de los Mayas. La agricultura de los Mayas prehispánicos y actuales en el Noreste de Yucatán]]></source>
<year>1994</year>
<page-range>322</page-range><publisher-loc><![CDATA[Mérida, Yucatán ]]></publisher-loc>
<publisher-name><![CDATA[DANIDA]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Thornthwaite]]></surname>
<given-names><![CDATA[CW]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[An approach toward a rational classification of climate]]></article-title>
<source><![CDATA[Geography Review]]></source>
<year>1948</year>
<volume>38</volume>
<page-range>55-94</page-range></nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="">
<collab>WMO</collab>
<source><![CDATA[Guide to Agricultural Meteorological Practices]]></source>
<year>2012</year>
<publisher-loc><![CDATA[Switzerland ]]></publisher-loc>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
