<?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>0864-0394</journal-id>
<journal-title><![CDATA[Pastos y Forrajes]]></journal-title>
<abbrev-journal-title><![CDATA[Pastos y Forrajes]]></abbrev-journal-title>
<issn>0864-0394</issn>
<publisher>
<publisher-name><![CDATA[Estación Experimental de Pastos y Forrajes Indio Hatuey]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0864-03942024000100004</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Reservas de carbono orgánico en diferentes tipos de utilización de la tierra]]></article-title>
<article-title xml:lang="en"><![CDATA[Organic carbon stocks in different types of land use]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martín-Gutiérrez]]></surname>
<given-names><![CDATA[George]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pablos-Reyes]]></surname>
<given-names><![CDATA[Pablo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cobo-Vidal]]></surname>
<given-names><![CDATA[Yakelín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Villazón-Gómez]]></surname>
<given-names><![CDATA[Juan Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto de Investigaciones de la Caña de Azúcar  ]]></institution>
<addr-line><![CDATA[Holguín ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto de Investigaciones de la Caña de Azúcar  ]]></institution>
<addr-line><![CDATA[Santiago de Cuba ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Holguín  ]]></institution>
<addr-line><![CDATA[Holguín ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2024</year>
</pub-date>
<volume>47</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0864-03942024000100004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0864-03942024000100004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0864-03942024000100004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Objetivo: Evaluar el efecto de diferentes tipos de utilización de la tierra en las reservas de carbono orgánico en un suelo Ferrítico Rojo oscuro típico. Materiales y Métodos: La investigación se desarrolló en un punto de observación permanente, ubicado en la localidad de Guaro, municipio Mayarí, provincia Holguín. Se tomaron muestras de suelo a la profundidad de 0-20, 20-40 y 40-60 cm, en tres tipos de utilización de la tierra: bosque de Pinus cubensis Griseb., pasto natural (Paspalum notatum Alain ex Flügge) y Saccharum spp., a los que se les determinó el carbono orgánico total. Además, se tomaron muestras sin disturbar para determinar la densidad aparente. Resultados: Se encontraron diferencias significativas en las reservas de carbono orgánico del suelo entre los tres tipos de utilización de la tierra, a una profundidad de 0-20 cm. En el pasto natural fue donde hubo mayor reserva. Le siguió Saccharum spp y el bosque de P. cubensis. Hubo incremento en la tasa de acumulación de carbono edáfico con la profundidad en todos los tipos de utilización de la tierra. Se encontraron los mayores valores en la profundidad de 0-20 cm, que disminuyeron con el perfil. Solo hubo cifras negativas en el bosque de P. cubensis, a profundidad de 40-60 cm. Conclusiones: Las mayores reservas de carbono se hallaron en terrenos con P. notatum. Le siguieron Saccharum spp. y P. cubensis. Los tipos de uso de la tierra con menor actividad humana mostraron las tasas más altas de acumulación de carbono y mejor calidad del suelo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Objective: To evaluate the effect of different types of land use on organic carbon stocks in a typical dark red ferritic soil. Materials and Methods: The research was developed in a permanent observation point, located in the Guaro locality, Mayarí municipality, Holguín province. Soil samples were taken at 0-20, 20-40 and 40-60 cm depth, in three types of land use: Pinus cubensis Griseb. forest, natural pasture (Paspalum notatum Alain ex Flügge) and Saccharum spp. to which total organic carbon was determined. In addition, undisturbed samples were taken to determine the bulk density. Results: Significant differences in soil organic carbon stocks were found among the three types of land use, at a depth of 0-20 cm. The natural pasture had the highest stock. It was followed by Saccharum spp and P. cubensis forest. There was increase in the rate of edaphic carbon accumulation with depth in all types of land use. The highest values were found in the 0-20 cm depth, which decreased with profile. There were negative figures only in the P. cubensis forest, at 40-60 cm depth. Conclusions: The highest carbon stocks were found in soils with P. notatum. This was followed by Saccharum spp. and P. cubensis. Land use types with less human activity showed the highest rates of carbon accumulation and better soil quality.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[densidad del suelo]]></kwd>
<kwd lng="es"><![CDATA[fertilidad]]></kwd>
<kwd lng="es"><![CDATA[profundidad]]></kwd>
<kwd lng="en"><![CDATA[soil density]]></kwd>
<kwd lng="en"><![CDATA[fertility]]></kwd>
<kwd lng="en"><![CDATA[Depth]]></kwd>
</kwd-group>
</article-meta>
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