<?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>2007-1132</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias forestales]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. de cienc. forestales]]></abbrev-journal-title>
<issn>2007-1132</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-11322017000100025</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Inventario y mapeo de un bosque bajo manejo de pino con datos del sensor SPOT 6]]></article-title>
<article-title xml:lang="en"><![CDATA[Inventory and mapping of a pine forest under timber management using data obtained with a SPOT 6 sensor]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres-Vivar]]></surname>
<given-names><![CDATA[Juan Esteban]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valdez-Lazalde]]></surname>
<given-names><![CDATA[José René]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ángeles-Pérez]]></surname>
<given-names><![CDATA[Gregorio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Santos-Posadas]]></surname>
<given-names><![CDATA[Héctor Manuel de los]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aguirre-Salado]]></surname>
<given-names><![CDATA[Carlos Arturo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Colegio de Postgraduados Posgrado en Ciencias Forestales ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de San Luis Potosí Facultad de Ingeniería ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2017</year>
</pub-date>
<volume>8</volume>
<numero>39</numero>
<fpage>25</fpage>
<lpage>44</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-11322017000100025&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-11322017000100025&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-11322017000100025&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: El objetivo de la investigación fue cuantificar y mapear las variables de densidad forestal, área basal (Ab), biomasa total (Bt), cobertura de copa (Cob), volumen (Vol) e índice de área foliar (IAF) en un bosque de Pinus patula bajo manejo maderable. Inicialmente, se identificaron las correlaciones existentes entre los datos espectrales derivados del sensor satelital SPOT 6 y datos de campo del inventario. El análisis incluyó el uso de modelos de regresión lineal múltiple, estimadores de razón y regresión y el enfoque tradicional de inventario (solo con datos de campo), con fines comparativos. Las correlaciones más altas para Ab, Bt, Cob y Vol fueron con la banda del infrarrojo cercano; los valores fueron de 0.74, -0.77, -0.50 y -0.77, respectivamente. Mientras que el IAF presentó la mayor correlación en la banda verde con un valor de -0.65. Los mejores ajustes se lograron para los modelos de regresión que predicen las variables Ab, Bt y Vol; R2 adj de 0.66 para cada una de ellas y valores de raíz del error medio cuadrático (REMC) de 5.82 m2 ha-1, 32 Mg ha-1 y 62.3 m3 ha-1 respectivamente. Las estimaciones de inventario se calcularon mediante el método de estimadores de razón y de regresión, y estuvieron dentro de la amplitud del intervalo de confianza del muestreo aleatorio. El estimador de regresión registró valores de precisión: 4.8 % (Ab), 6.7 % (Bt), 5.8 % (Cob), 6.6 % (Vol), 6.9 % (IAF). Este tipo de muestreo resultó el más conservador de todos los realizados.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: The purpose of the present research was to quantify and map the forest density, basal area (BA), total biomass (Bt), crown cover (CC), volume (Vol) and leaf area index (LAI) variables in a Pinus patula forest under timber management. Initially, the existing correlations between the spectral data derived from the SPOT-6 satellite sensor and field inventory data were identified. The analysis included the use of multiple linear regression models, ratio and regression estimators, and the traditional inventory approach (with field data only), for comparative purpose. The highest correlations for BA, Bt, CC and Vol were obtained using the near infrared strip; the values were 0.74, -0.77, -0.50 and -0.77, respectively, while the LAI had the highest correlation with the green strip, having a value of -0.65. The best adjustments were obtained for the regression models predicting the BA, Bt and Vol variables, a R2 adj of 0.66 for each variable, and mean square root error (MSRE) values of 5.82 m2 ha-1, 32 Mg ha-1 and 62.3 m3 ha-1 respectively. Inventory estimations were undertaken using the ratio and regression estimators&#8217; method, being within the range of the confidence interval of the random sampling. The regression estimator registered the following precision values: 4.8 % (BA), 6.7 % (Bt), 5.8 % (CC), 6.6 % (Vol), 6.9 % (LAI). This type of sampling turned out to be the most conservative of all that were carried out.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Biomasa total]]></kwd>
<kwd lng="es"><![CDATA[índice de área foliar]]></kwd>
<kwd lng="es"><![CDATA[inventario forestal]]></kwd>
<kwd lng="es"><![CDATA[modelación espacial]]></kwd>
<kwd lng="es"><![CDATA[Pinus patula Schiede ex Schltdl. &amp; Cham.]]></kwd>
<kwd lng="es"><![CDATA[variables de densidad]]></kwd>
<kwd lng="en"><![CDATA[Total biomass]]></kwd>
<kwd lng="en"><![CDATA[leaf area index]]></kwd>
<kwd lng="en"><![CDATA[forest inventory]]></kwd>
<kwd lng="en"><![CDATA[spatial modeling]]></kwd>
<kwd lng="en"><![CDATA[Pinus patula Schiede ex Schltdl. &amp; Cham.]]></kwd>
<kwd lng="en"><![CDATA[density variables]]></kwd>
</kwd-group>
</article-meta>
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