<?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>S2007-11322018000300070</article-id>
<article-id pub-id-type="doi">10.29298/rmcf.v9i47.180</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Aporte y descomposición de hojarasca en bosques templados de la región de El Salto, Durango]]></article-title>
<article-title xml:lang="en"><![CDATA[Contribution and decomposition of leaf litter in temperate forests of the El Salto region, Durango]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moreno Valdez]]></surname>
<given-names><![CDATA[María Emma]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Domínguez Gómez]]></surname>
<given-names><![CDATA[Tilo Gustavo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alvarado]]></surname>
<given-names><![CDATA[María del Socorro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Colín]]></surname>
<given-names><![CDATA[José Guadalupe]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Corral Rivas]]></surname>
<given-names><![CDATA[Sacramento]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González Rodríguez]]></surname>
<given-names><![CDATA[Humberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Tecnológico de El Salto División de Estudios de Posgrado ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,El Colegio de Michoacán  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma de Nuevo León Facultad de Ciencias Forestales ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2018</year>
</pub-date>
<volume>9</volume>
<numero>47</numero>
<fpage>70</fpage>
<lpage>93</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-11322018000300070&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-11322018000300070&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-11322018000300070&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: A fin de conocer el aporte y descomposición de hojarasca como un proceso ecosistémico a través del cual se transfieren nutrientes al suelo, se evaluaron dos sitios de estudio (2 500 m2) durante un año: El Brillante, donde la estructura forestal está condicionada por Quercus sideroxyla y Pinus cooperi var. Ornelasii; y Santa Bárbara, con Cupressus lusitanica y Pseudotsuga menziesii y diferente composición de especies; en cada uno se instalaron 10 colectores de hojarasca de 1 m2, en los que la recolecta se hizo quincenalmente. Dicho material fue separado en componentes: hojas, estructuras reproductivas, ramas, corteza, insectos, heces y otros (musgo, resina y tejido no identificado). Para medir la descomposición foliar se distribuyeron, por sitio, 160 bolsas con 10 g de hojarasca seca que se revisaron cada mes. La producción de hojarasca total fue de 5.9 (El Brillante) y de 3.6 Mg ha-1 año-1 (Santa Bárbara). Mediante un análisis de regresión, el modelo Exponencial Negativo Simple fue el mejor para describir la relación entre el peso inicial y final en la descomposición. Para la descomposición de 50 y 90 % de la masa de las hojas, el tiempo requerido fue de 1.6 y 10.8 años, respectivamente. El Brillante tiene una mayor producción de hojarasca; sin embargo, el proceso de descomposición es semejante al de Santa Bárbara. La comparación de promedios en el aporte de hojarasca y descomposición de la fracción foliar para los sitios de estudio se realizó con la prueba no paramétrica de U de Mann-Whitney.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: In order to know the contribution and decomposition of litter as an ecosystem process through which nutrients are transferred to the soil, two study sites (2 500 m2) were evaluated during one year: El Brillante, where the forest structure is conditioned by Quercus sideroxyla and Pinus cooperi var. ornelasii, and Santa Bárbara, with Cupressus lusitanica and Pseudotsuga menziesii and different composition of species; in each one, ten 1 m2 litter collectors were installed, in which the collection was made every two weeks. This material was separated into components: leaves, reproductive structure, branches, bark, insects, feces and others (moss, resin and unidentified tissue). To measure foliar decomposition, 160 bags with 10 g of dry litter were distributed per site and reviewed each month. Total litter production was 5.9 (El Brillante) and 3.6 Mg ha-1 year (Santa Bárbara). Through a regression analysis, the Simple Negative Exponential model was the best to describe the relationship between the initial and final weight in the decomposition. For the decomposition of 50 and 90 % of the mass of the leaves, the time required was 1.6 and 10.8 years, respectively. El Brillante has a higher production of litter, however, the decomposition process is similar to that of Santa Bárbara. The comparison of averages in the litter contribution and decomposition of the foliar fraction for the study sites was carried out with the non-parametric Mann-Whitney U test.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Deposición de hojarasca]]></kwd>
<kwd lng="es"><![CDATA[hojarasca]]></kwd>
<kwd lng="es"><![CDATA[modelos de descomposición]]></kwd>
<kwd lng="es"><![CDATA[Pseudotsuga menziesii (Mirb.) Franco]]></kwd>
<kwd lng="es"><![CDATA[Quercus sideroxyla Humb &amp; Bompl.]]></kwd>
<kwd lng="es"><![CDATA[tasa de descomposición foliar]]></kwd>
<kwd lng="en"><![CDATA[Litterfall deposition]]></kwd>
<kwd lng="en"><![CDATA[litterfall decomposition models]]></kwd>
<kwd lng="en"><![CDATA[Pseudotsuga menziesii (Mirb.) Franco]]></kwd>
<kwd lng="en"><![CDATA[Quercus sideroxyla Humb &amp; Bompl.]]></kwd>
<kwd lng="en"><![CDATA[foliar decomposition rate]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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