<?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>S2310-34692021000100124</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Factor y cociente de forma preliminar de Brachystegia floribunda Benth.]]></article-title>
<article-title xml:lang="pt"><![CDATA[Fator de forma preliminar e quociente de forma de Brachystegia floribunda Benth.]]></article-title>
<article-title xml:lang="en"><![CDATA[Preliminary form and quotient factor of Brachystegia floribunda Benth.]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aldana Pereira]]></surname>
<given-names><![CDATA[Edilio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lores Pérez]]></surname>
<given-names><![CDATA[Yordan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Pinar del Rio "Hermanos Saíz Montes de Oca"  ]]></institution>
<addr-line><![CDATA[Pinar del Río ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Guantánamo  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2021</year>
</pub-date>
<volume>9</volume>
<numero>1</numero>
<fpage>124</fpage>
<lpage>139</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2310-34692021000100124&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2310-34692021000100124&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2310-34692021000100124&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Brachystegia floribunda Benth es una de las especies de mayor importancia y uso del bosque natural de Miombo, del Planalto Central de Angola, encontrándose mezclada con otras especies también importantes de los géneros Brachystegia, Isoberlínea y Julbernardia, entre otros, pero ocupando el mayor porcentaje de la superficie forestal; no obstante, el conocimiento veraz referente a las estimaciones de su volumen comercial es limitado. Esta investigación, ejecutada en las áreas forestales de la formación de Miombo, tuvo como objetivo, determinar los factores de forma del fuste y ramas, así como el cociente de forma o factor diamétrico del fuste. Se empleó una muestra de 53 árboles, derribados para aprovechamiento forestal y cubicado rigurosamente. Se determinó el factor volumétrico de forma, con y sin agrupamiento de los árboles en clases de diámetros. Para las ramas, solo se determinó el factor volumétrico de forma, con y sin agrupamiento, en clases de longitud de las mismas. Como resultado final se concluye que el factor volumétrico y diamétrico de forma del fuste tienen mejor correlación con el diámetro, agrupados en clases; y la correlación del factor volumétrico de las ramas es mayor cuando se agrupan en clases de longitud.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[RESUMO Brachystegia floribunda Benth é uma das espécies mais importantes e utilizadas na floresta natural de Miombo, no planalto central de Angola, misturada com outras espécies importantes dos géneros Brachystegia, Isoberlínea e Julbernardia, entre outros, mas ocupando a maior percentagem da área florestal; no entanto, o verdadeiro conhecimento sobre as estimativas do seu volume comercial é limitado. Esta investigação, realizada nas zonas florestais da formação Miombo, teve como objetivo determinar os fatores de forma do tronco e dos ramos, bem como o quociente de forma ou o fator diamétrico do tronco. Foi utilizada uma amostra de 53 árvores, abatidas para abate e rigorosamente cortadas em cubos. O fator de forma volumétrica foi determinado, com e sem agrupamento das árvores em classes de diâmetro. Para os ramos, apenas foi determinado o fator de forma volumétrica, com e sem agrupamento, em classes de comprimento. Como resultado final, conclui-se que o fator volumétrico e o diâmetro do tronco têm uma melhor correlação com o diâmetro, agrupados em classes; e a correlação do factor volumétrico dos ramos é maior quando são agrupados em classes de comprimento.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT One of the most important and widely used species in the natural forest of Miombo, in the Central Highlands of Angola, Brachystegia floribunda Benth is found mixed with other important species of the genera Brachystegia, Isoberlínea and Julbernardia, among others, but occupying the largest percentage of the forest area; however, there is limited accurate knowledge regarding the estimation of its commercial volume. This research, carried out in the forest areas of the Miombo formation, had the objective of determining the shape factors of the trunk and branches, as well as the shape quotient or diametric factor of the trunk. A sample of 53 trees, felled for logging and rigorously cubed, was used. The volumetric shape factor was determined, with and without grouping the trees in diameter classes. For the branches, only the volumetric shape factor was determined, with and without grouping, in branch length classes. As a final result, it was concluded that the volumetric and diameter shape factor of the trunks had a better correlation with the diameter, grouped in classes; and the correlation of the volumetric shape factor of the branches was higher when grouped in length classes.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Estimaciones]]></kwd>
<kwd lng="es"><![CDATA[Volumétricas]]></kwd>
<kwd lng="es"><![CDATA[Factor de forma]]></kwd>
<kwd lng="es"><![CDATA[Cociente de forma]]></kwd>
<kwd lng="es"><![CDATA[Brachystegia floribunda.]]></kwd>
<kwd lng="pt"><![CDATA[Estimativas]]></kwd>
<kwd lng="pt"><![CDATA[Volumétrica]]></kwd>
<kwd lng="pt"><![CDATA[Factor de forma]]></kwd>
<kwd lng="pt"><![CDATA[Quociente de forma]]></kwd>
<kwd lng="pt"><![CDATA[Brachystegia floribunda.]]></kwd>
<kwd lng="en"><![CDATA[Volumetric estimate]]></kwd>
<kwd lng="en"><![CDATA[Form factor]]></kwd>
<kwd lng="en"><![CDATA[Form quotient]]></kwd>
<kwd lng="en"><![CDATA[Brachystegia floribunda.]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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