<?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>2310-3469</journal-id>
<journal-title><![CDATA[Revista Cubana de Ciencias Forestales]]></journal-title>
<abbrev-journal-title><![CDATA[Rev cubana ciencias forestales]]></abbrev-journal-title>
<issn>2310-3469</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Pinar del Río Hermanos Saíz Montes de Oca]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2310-34692019000200184</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Impacto de la megasequía en el crecimiento radial de Nothofagus obliqua (Mirb.) Oerst. (Roble), Chile]]></article-title>
<article-title xml:lang="en"><![CDATA[Impact of mega-drought on tree radial oak growth Nothofagus obliqua (Mirb.) Oerst. (Roble), Chile]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Corvalán Vera]]></surname>
<given-names><![CDATA[Patricio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández Palma]]></surname>
<given-names><![CDATA[Jaime]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Chile. Facultad Ciencia Forestales y de la Conservación de la Naturaleza Departamento Gestión Forestal y de su Medio Ambiente ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Chile. Facultad Ciencia Forestales y de la Conservación de la Naturaleza Departamento Gestión Forestal y de su Medio Ambiente ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2019</year>
</pub-date>
<volume>7</volume>
<numero>2</numero>
<fpage>184</fpage>
<lpage>196</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2310-34692019000200184&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2310-34692019000200184&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2310-34692019000200184&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Con el objeto de evaluar el impacto de la declinación de las precipitaciones ocurrida entre los años 2007 al 2012 en Chile Central, sobre los bosques septentrionales de Nothofagus obliqua, se midieron un total de 223 tarugos de crecimiento en 51 árboles aislados y 172 creciendo en competencia. Se utilizaron datos locales de precipitación anual para comparar los crecimientos del período normal (2001-2006) con los del período seco (2007-2012). Se contrastó el crecimiento anual corriente en radio al diámetro normal y su sensitividad, mostrando que tanto los árboles que crecen aislados como los que compiten presentaron un evidente deterioro en sus tasas de crecimiento. Un 34.8 % de déficit en precipitación se traduce en un 17.6 % y 28.8 % de disminución en el crecimiento anual corriente en árboles aislados y en competencia, respectivamente. En el período seco, respecto al período previo, los árboles aislados presentaron un crecimiento menos sensitivo (0.364) que el de los árboles en competencia (0.384). También se estableció que la precipitación evaluada en un promedio móvil de años previos al del año en evaluación es capaz de explicar, a través de un modelo lineal, hasta el 57.3 % de la variabilidad total del crecimiento radial en los árboles aislados, usando una ventana promedio de 6 años y 41.7 % en los árboles que compiten con una ventana de tres años.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT In order to evaluate the impact of the decline in rainfall between 2007 and 2012 in Central Chile on the northern forests of Nothofagus obliqua, a total of 223 growth plugs were measured in 51 isolated trees and 172 growing in competition. Local annual precipitation data were used to compare the growths of the normal period (2001-2006) with those of the dry period (2007-2012). The current annual growth in radius to normal diameter and its sensitivity were contrasted, showing that both isolated and competing trees showed an evident deterioration in their growth rates. A 34.8 % deficit in precipitation translates into a 17.6 % and 28.8 % decrease in current annual growth in isolated and competing trees, respectively. In the dry period, compared to the previous period, isolated trees showed a less sensitive growth (0.364) than that of competing trees (0.384). It was also established that the precipitation evaluated in a moving average of previous years to the year in evaluation is able to explain, through a linear model, up to 57.3 % of the total variability of the radial growth in isolated trees, using an average window of 6 years and 41.7 % in trees that compete with a window of 3 years.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[competencia]]></kwd>
<kwd lng="es"><![CDATA[crecimiento radial]]></kwd>
<kwd lng="es"><![CDATA[precipitación]]></kwd>
<kwd lng="es"><![CDATA[sequía.]]></kwd>
<kwd lng="en"><![CDATA[competence]]></kwd>
<kwd lng="en"><![CDATA[tree radial growth]]></kwd>
<kwd lng="en"><![CDATA[precipitation]]></kwd>
<kwd lng="en"><![CDATA[drought.]]></kwd>
</kwd-group>
</article-meta>
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