<?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>0187-5779</journal-id>
<journal-title><![CDATA[Terra Latinoamericana]]></journal-title>
<abbrev-journal-title><![CDATA[Terra Latinoam]]></abbrev-journal-title>
<issn>0187-5779</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de la Ciencia del Suelo A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0187-57792018000200169</article-id>
<article-id pub-id-type="doi">10.28940/terra.v36i2.249</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Índice espectral de vegetación para la caracterización simultánea de la floración y crecimiento vegetal]]></article-title>
<article-title xml:lang="en"><![CDATA[Development of a spectral vegetation index for simultaneous characterization of flowering and foliage development]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Casiano]]></surname>
<given-names><![CDATA[Marcos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Paz]]></surname>
<given-names><![CDATA[Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Programa Mexicano del Carbono  ]]></institution>
<addr-line><![CDATA[Texcoco Edo. de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Texcoco Edo. de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2018</year>
</pub-date>
<volume>36</volume>
<numero>2</numero>
<fpage>169</fpage>
<lpage>181</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-57792018000200169&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-57792018000200169&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-57792018000200169&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Es importante caracterizar los patrones fenológicos de la floración y desarrollo del follaje en la vegetación con algún grado de caducidad, debido a su relación con el ciclo del carbono y del agua. Las técnicas de campo y el uso de fotografías digitales en torres de observación tienen alcances geográficos limitados, por lo que la tecnología de los sensores remotos es una opción costo-efectiva. En este trabajo se revisó un modelo fenológico floración-follaje de desarrollo previo y se presenta un nuevo modelo que incluye el uso de un índice de vegetación de floración y follaje (IVFF) para caracterizar y diferenciar los patrones fenológicos. Para correlacionar el IVFF con la cobertura de la floración (CF) en la vegetación, se desarrolló un experimento de validación que incluyó un arbusto de bajo porte, en el cual se colocaron diferentes coberturas (&lt;15%) de flores blancas. Los resultados mostraron que el IVFF se correlaciona linealmente con la cobertura de flores, y que la relación depende de la cobertura del follaje donde se colocan. El desarrollo propuesto permitió establecer correlaciones claras entre el IVFF y la cobertura floral de la vegetación con diferentes coberturas aéreas, por lo que fue significativamente eficaz, aún con porcentajes bajos de floración, imposibles de detectar con otras técnicas. En las estimaciones sólo se utilizan las bandas del rojo y el infrarrojo cercano, por lo que convierte al método propuesto en una herramienta asequible para la mayoría de las aplicaciones de sensores remotos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: It is important to characterize the phenological patterns of flowering and foliage development in vegetation that has some degree of deciduous behavior due to its relation to the carbon cycle and water. Field techniques and use of digital photograph observation towers have limited geographical scope, so that remote sensing technology is a cost-effective option. In this work a flowering-foliage phenology model was revised and a new model that includes the use of vegetation index of flowering and foliage (VIFF) to characterize and differentiate the patterns is presented. To correlate the VIFF coverage flowering (CF) in vegetation, we conducted a validation experiment that included a low-growing shrub, in which different coverages (&lt;15%) of white flowers were placed. The results showed that the VIFF correlates linearly with the coverage of flowers and the relationship depends on the coverage of the foliage where they are placed. The proposed development allowed establishing clear correlations between VIFF and floral vegetation cover of different coverage area, which was significantly effective, even with low percentages of flowering, undetectable with other techniques. Because it uses only red and near infrared bands, the proposed tool is accessible for most applications of remote sensing.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[sensores remotos]]></kwd>
<kwd lng="es"><![CDATA[IVFF]]></kwd>
<kwd lng="es"><![CDATA[patrón artificial de floración]]></kwd>
<kwd lng="es"><![CDATA[IVISn]]></kwd>
<kwd lng="es"><![CDATA[reflectancias normalizadas y estandarizadas]]></kwd>
<kwd lng="en"><![CDATA[remote sensing]]></kwd>
<kwd lng="en"><![CDATA[IVFF]]></kwd>
<kwd lng="en"><![CDATA[artificial flowering pattern]]></kwd>
<kwd lng="en"><![CDATA[IVISn]]></kwd>
<kwd lng="en"><![CDATA[normalized and standardized reflectances]]></kwd>
</kwd-group>
</article-meta>
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