<?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>2007-4018</journal-id>
<journal-title><![CDATA[Revista Chapingo serie ciencias forestales y del ambiente]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Chapingo ser. cienc. for. ambient]]></abbrev-journal-title>
<issn>2007-4018</issn>
<publisher>
<publisher-name><![CDATA[Universidad Autónoma Chapingo, Coordinación de Revistas Institucionales]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-40182016000200203</article-id>
<article-id pub-id-type="doi">10.5154/r.rchscfa.2015.05.021</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Taper model by type of soil for Pinus radiata in the regions of Biobío and the Araucanía, Chile]]></article-title>
<article-title xml:lang="es"><![CDATA[Modelo de ahusamiento por tipo de suelo para Pinus radiata en las regiones del Biobío y la Araucanía, Chile]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Toro]]></surname>
<given-names><![CDATA[Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rubilar-Pons]]></surname>
<given-names><![CDATA[Rafael]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Muñoz-Sáez]]></surname>
<given-names><![CDATA[Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cartes-Rodríguez]]></surname>
<given-names><![CDATA[Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Acuña-Carmona]]></surname>
<given-names><![CDATA[Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cancino-Cancino]]></surname>
<given-names><![CDATA[Jorge]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Concepción Facultad de Ciencias Forestales ]]></institution>
<addr-line><![CDATA[ Concepción]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Concepción Cooperativa de Productividad Forestal ]]></institution>
<addr-line><![CDATA[ Concepción]]></addr-line>
<country>Chile</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2016</year>
</pub-date>
<volume>22</volume>
<numero>2</numero>
<fpage>203</fpage>
<lpage>220</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-40182016000200203&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-40182016000200203&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-40182016000200203&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: A new generalized taper model for Pinus radiata is presented in some types of soils. This is a non-linear model fitted with data from 264 trees aged between 15 and 31 years, harvested in 27 stands located in 11 communes from the Biobío and the Araucanía, Chile, in three different types of soils, i.e. volcanic sand, volcanic ash and marine sediments. The generalization of the model was achieved by incorporating stand state variables, and the subsequent simplification of it incorporating site variability in its parameters. The volume function obtained from the numerical integration of the taper model predicts over 97% of the variation in stem volume without bark estimated by the formula of Smalian in the three types of soils.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Se presenta un nuevo modelo de ahusamiento generalizado en Pinus radiata en algunos tipos de suelo. Este es un modelo no lineal ajustado con datos de 264 árboles con edades entre 15 y 31 años, cosechados en 27 rodales localizados en 11 comunas de las regiones del Biobío y la Araucanía, Chile, en tres diferentes tipos de suelos (arenas volcánicas, cenizas volcánicas y sedimentos de origen marino). La generalización del modelo se logró incorporando variables de estado del rodal, y la posterior simplificación del mismo, incorporando la variabilidad del sitio de manera implícita en sus parámetros. La función de volumen obtenida de la integración numérica del modelo de ahusamiento predice más de 97 % de la variación del volumen del fuste sin corteza estimado mediante la fórmula de Smalian, en los tres tipos de suelo.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Generalized model]]></kwd>
<kwd lng="en"><![CDATA[volume]]></kwd>
<kwd lng="en"><![CDATA[biomass]]></kwd>
<kwd lng="en"><![CDATA[forest management]]></kwd>
<kwd lng="en"><![CDATA[wood optimization]]></kwd>
<kwd lng="es"><![CDATA[Modelo generalizado]]></kwd>
<kwd lng="es"><![CDATA[volumen]]></kwd>
<kwd lng="es"><![CDATA[biomasa]]></kwd>
<kwd lng="es"><![CDATA[gestión forestal]]></kwd>
<kwd lng="es"><![CDATA[optimización de la madera]]></kwd>
</kwd-group>
</article-meta>
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