<?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>S2007-40182022000200257</article-id>
<article-id pub-id-type="doi">10.5154/r.rchscfa.2021.02.010</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Soil inorganic nitrogen pulses and leaf nitrogen resorption in two Pinus hartwegii Lindl. forests]]></article-title>
<article-title xml:lang="es"><![CDATA[Pulsos de nitrógeno inorgánico en el suelo y reabsorción foliar de nitrógeno en dos bosques de Pinus hartwegii Lindl.]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres-Duque]]></surname>
<given-names><![CDATA[Fabiola]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez-Guerrero]]></surname>
<given-names><![CDATA[Armando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Trejo-Téllez]]></surname>
<given-names><![CDATA[Libia I.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reyes-Hernández]]></surname>
<given-names><![CDATA[Valentín J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Correa-Díaz]]></surname>
<given-names><![CDATA[Arian]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP) Centro Nacional de Investigación Disciplinaria en Conservación y Mejoramiento de Ecosistemas Forestales ]]></institution>
<addr-line><![CDATA[Coyoacán Ciudad de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2022</year>
</pub-date>
<volume>28</volume>
<numero>2</numero>
<fpage>257</fpage>
<lpage>269</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-40182022000200257&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-40182022000200257&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-40182022000200257&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction:  Nutrient movement in high mountain forests generates information on their functioning and response to climate change effects. Nitrogen dynamics in these ecosystems has been poorly studied.  Objective:  To quantify N reservoirs in forest litter, topsoil (0-10 cm) and needle litterfall, and to measure temporal concentrations of nitrate and ammonium in topsoil and N resorption (ReabsN) in the Jocotilán (JO) and Tláloc (TL) mountains of central Mexico.  Materials and methods:  A total of 108 (JO) and 128 (TL) soil and needle litterfall samples were collected for one year. N and ReabsN reservoirs were compared between mountains using the Wilcoxon test (P &lt; 0.05). Temporal trends of soil moisture, N and ReabsN forms were analyzed with linear mixed models, setting time and mountain as fixed factors.  Results and discussion:  Gravimetric moisture, total N, and nitrate and ammonium concentrations were not different between mountains. Total inorganic N (ammonium + nitrate) in JO was higher than in TL (46 vs. 41 mg&#8729;kg-1). N in needle litterfall and soil were higher in JO, but ReabsN in TL was higher (60 vs. 55 %). Soil moisture, ammonium and ReabsN had a seasonal pattern of cubic trend (P &lt; 0.05), denoting N pulses.  Conclusions:  Forests showed differences in N dynamics in needle litterfall, resorption and soil inorganic forms of N, indicating that it is possible to differentiate their functioning according to this nutrient.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción:  El movimiento de nutrientes en bosques de alta montaña genera información sobre su funcionamiento y respuesta a efectos de cambio climático. La dinámica de nitrógeno en estos ecosistemas se ha estudiado muy poco.  Objetivo:  Cuantificar los reservorios de N en mantillo, suelo superficial (0-10 cm) y caída de acícula, así como medir las concentraciones temporales de nitrato y amonio en el suelo superficial y la reabsorción de N (ReabsN) en las montañas Jocotilán (JO) y Tláloc (TL) del centro de México.  Materiales y métodos:  Durante un año se colectaron 108 (JO) y 128 (TL) muestras de suelo y de caída de acícula. Los reservorios de N y ReabsN se compararon entre montañas mediante la prueba Wilcoxon (P &lt; 0.05). Las tendencias temporales de humedad del suelo, formas de N y ReabsN se analizaron con modelos lineales mixtos, considerando el tiempo y la montaña como factores fijos.  Resultados y discusión:  La humedad gravimétrica, el N total y las concentraciones de nitrato y amonio no difirieron entre montañas. El N inorgánico total (amonio + nitrato) en JO fue mayor que en TL (46 vs. 41 mg&#8729;kg-1). El N en caída de acícula y suelo fueron mayores en JO, pero la ReabsN en TL fue mayor (60 vs. 55 %). La humedad del suelo, el amonio y ReabsN tuvieron un patrón estacional de tendencia cúbica (P &lt; 0.05), denotando pulsos de N.  Conclusiones:  Los bosques mostraron diferencias en las dinámicas de N en caída de acícula, reabsorción y en formas inorgánicas de N del suelo, indicando que es posible diferenciar su funcionamiento en términos de dicho nutriente.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[coniferous forest]]></kwd>
<kwd lng="en"><![CDATA[nitrogen reservoirs]]></kwd>
<kwd lng="en"><![CDATA[nutrient dynamics]]></kwd>
<kwd lng="en"><![CDATA[ammonium]]></kwd>
<kwd lng="en"><![CDATA[nitrate]]></kwd>
<kwd lng="es"><![CDATA[bosque de coníferas]]></kwd>
<kwd lng="es"><![CDATA[reservorios de nitrógeno]]></kwd>
<kwd lng="es"><![CDATA[dinámica de nutrientes]]></kwd>
<kwd lng="es"><![CDATA[amonio]]></kwd>
<kwd lng="es"><![CDATA[nitrato]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Arce]]></surname>
<given-names><![CDATA[J. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Layer]]></surname>
<given-names><![CDATA[P. W.]]></given-names>
</name>
<name>
<surname><![CDATA[Macías]]></surname>
<given-names><![CDATA[J. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Morales-Casique]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Palomo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Jiménez-Domínguez]]></surname>
<given-names><![CDATA[F. J.]]></given-names>
</name>
<name>
<surname><![CDATA[&#8230;Vásquez-Serrano]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Geology and stratigraphy of the Mexico basin (Mexico city), central Trans-Mexican volcanic Belt]]></article-title>
<source><![CDATA[Journal of Maps]]></source>
<year>2019</year>
<volume>15</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>320&#8210;332</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Booth]]></surname>
<given-names><![CDATA[M. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Stark]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Rastetter]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Controls on nitrogen cycling in terrestrial ecosystems: a synthetic analysis of literature data]]></article-title>
<source><![CDATA[Ecological Monographs]]></source>
<year>2005</year>
<volume>75</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>139&#8210;157</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bremmer]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Total nitrogen]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[A.]]></surname>
<given-names><![CDATA[B. C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Methods of soil analysis. Part 2. Agronomy 9]]></source>
<year>1965</year>
<publisher-loc><![CDATA[Madison, WI, USA ]]></publisher-loc>
<publisher-name><![CDATA[American Society of Agronomy]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chávez-Vergara]]></surname>
<given-names><![CDATA[B. M.]]></given-names>
</name>
<name>
<surname><![CDATA[González-Rodríguez]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Etchevers]]></surname>
<given-names><![CDATA[J. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Oyama]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Oliva]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Foliar nutrient resorption constrains soil nutrient transformations under two native oak species in a temperate deciduous forest in Mexico]]></article-title>
<source><![CDATA[European Journal of Forest Research]]></source>
<year>2015</year>
<volume>134</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>803&#8210;817</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Wen]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Zeng]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Dell]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Differential responses of net N mineralization and nitrification to throughfall reduction in a Castanopsis hystrix plantation in Southern China]]></article-title>
<source><![CDATA[Forest Ecosystems]]></source>
<year>2019</year>
<volume>6</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>14</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Correa-Díaz]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez-Guerrero]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Vargas-Hernández]]></surname>
<given-names><![CDATA[J. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Rozenberg]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Horwath]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Long-term wood micro-density variation in alpine forests at Central México and their spatial links with remotely sensed information]]></article-title>
<source><![CDATA[Forests]]></source>
<year>2020</year>
<volume>11</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>452</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Correa&#8208;Díaz]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Horwath]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez&#8208;Guerrero]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Vargas&#8208;Hernández]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Villanueva&#8208;Díaz]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[. . . Velázquez&#8208;Martínez]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[From trees to ecosystems: Spatiotemporal scaling of climatic impacts on montane landscapes using dendrochronological, isotopic, and remotely sensed data]]></article-title>
<source><![CDATA[Global Biogeochemical Cycles]]></source>
<year>2020</year>
<volume>34</volume>
<numero>3</numero>
<issue>3</issue>
</nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Correa&#8208;Díaz]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Horwath]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez&#8208;Guerrero]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Vargas&#8208;Hernández]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Villanueva&#8208;Díaz]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[. . . Suárez&#8208;Espinoza]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Linking remote sensing and dendrochronology to quantify climate&#8208;induced shifts in high&#8208;elevation forests over space and time]]></article-title>
<source><![CDATA[Journal of Geophysical Research: Biogeosciences]]></source>
<year>2019</year>
<volume>124</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>166&#8210;183</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cronan]]></surname>
<given-names><![CDATA[C. S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Microbial biogeochemistry]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Cronan]]></surname>
<given-names><![CDATA[C. S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Ecosystem biogeochemistry: Element cycling in the forest landscape]]></source>
<year>2018</year>
<page-range>31&#8210;40</page-range><publisher-loc><![CDATA[Springer ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dittman]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Driscoll]]></surname>
<given-names><![CDATA[C. T.]]></given-names>
</name>
<name>
<surname><![CDATA[Groffman]]></surname>
<given-names><![CDATA[P. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Fahey]]></surname>
<given-names><![CDATA[T. J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Dynamics of nitrogen and dissolved organic carbon at the Hubbard Brook Experimental Forest]]></article-title>
<source><![CDATA[Ecology]]></source>
<year>2007</year>
<volume>88</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>1153&#8210;1166</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Enta]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Hayashi]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Caceres]]></surname>
<given-names><![CDATA[M. L. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Fujiyoshi]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Yamanaka]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Oikawa]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Seidel]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Nitrogen resorption and fractionation during leaf senescence in typical tree species in Japan]]></article-title>
<source><![CDATA[Journal of Forestry Research]]></source>
<year>2019</year>
<volume>31</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>2053&#8210;2062</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fitzmaurice]]></surname>
<given-names><![CDATA[G. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Laird]]></surname>
<given-names><![CDATA[N. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ware]]></surname>
<given-names><![CDATA[J. H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Applied longitudinal analysis]]></source>
<year>2004</year>
<publisher-loc><![CDATA[USA ]]></publisher-loc>
<publisher-name><![CDATA[Wiley]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fonseca]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Figueiredo]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Carbon and nitrogen in forest floor and mineral soil under four forest species in the Mediterranean region]]></article-title>
<source><![CDATA[Spanish Journal of Soil Science]]></source>
<year>2018</year>
<volume>8</volume>
<numero>1</numero>
<issue>1</issue>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Modificaciones al sistema de clasificación climática de Köppen (Para adaptarlo a las condiciones de la República Mexicana)]]></source>
<year>2004</year>
<edition>5.a ed.</edition>
<publisher-loc><![CDATA[México ]]></publisher-loc>
<publisher-name><![CDATA[Instituto de Geografía, UNAM]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[González-Zurdo]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Escudero]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Mediavilla]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[N resorption efficiency and proficiency in response to winter cold in three evergreen species]]></article-title>
<source><![CDATA[Plant and Soil]]></source>
<year>2015</year>
<volume>394</volume>
<numero>1-2</numero>
<issue>1-2</issue>
<page-range>87&#8210;98</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[He]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Yan]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Cui]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Gong]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Han]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Scaling the leaf nutrient resorption efficiency: nitrogen vs phosphorus in global plants]]></article-title>
<source><![CDATA[Science of the Total Environment]]></source>
<year>2020</year>
<volume>729</volume>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hong]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Qin]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Ma]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Xu]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Seasonal shifting in the absorption pattern of alpine species for NO3&#8722; and NH4+ on the Tibetan Plateau]]></article-title>
<source><![CDATA[Biology and Fertility of Soils]]></source>
<year>2019</year>
<volume>55</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>801&#8210;811</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jiang]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Geng]]></surname>
<given-names><![CDATA[Q.]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[Q.]]></given-names>
</name>
<name>
<surname><![CDATA[Luo]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Vogel]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Shi]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[. . . Xu]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Nitrogen and phosphorus resorption in planted forests worldwide]]></article-title>
<source><![CDATA[Forests]]></source>
<year>2019</year>
<volume>10</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>201</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Johnson]]></surname>
<given-names><![CDATA[D. W.]]></given-names>
</name>
<name>
<surname><![CDATA[Turner]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Nitrogen budgets of forest ecosystems: a review]]></article-title>
<source><![CDATA[Forest Ecology and Management]]></source>
<year>2014</year>
<volume>318</volume>
<page-range>370&#8210;379</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kobe]]></surname>
<given-names><![CDATA[R. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Lepczyk]]></surname>
<given-names><![CDATA[C. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Iyer]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Resorption efficiency decreases with increasing green leaf nutrients in a global data set]]></article-title>
<source><![CDATA[Ecology]]></source>
<year>2005</year>
<volume>86</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>2780&#8210;2792</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Gou]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Gunina]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Long]]></surname>
<given-names><![CDATA[X. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Soil nitrogen pool drives plant tissue traits in alpine treeline ecotones]]></article-title>
<source><![CDATA[Forest Ecology and Management]]></source>
<year>2020</year>
<volume>477</volume>
</nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lopez-Escobar]]></surname>
<given-names><![CDATA[N. F.]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez-Guerrero]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Velázquez-Martínez]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Fierros-González]]></surname>
<given-names><![CDATA[A. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Castruita-Esparza]]></surname>
<given-names><![CDATA[L. U.]]></given-names>
</name>
<name>
<surname><![CDATA[Vera-Castillo]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Reservoirs and nutrient dynamics in two stands of Pinus montezumae Lamb. in Tlaxcala, Mexico]]></article-title>
<source><![CDATA[Revista Chapingo Serie Ciencias Forestales y del Ambiente]]></source>
<year>2018</year>
<volume>24</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>115&#8210;129</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Marín]]></surname>
<given-names><![CDATA[L. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Escolero-Fuentes]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Trinidad-Santos]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Physical geography, hydrogeology, and forest soils of the basin of Mexico]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Fenn]]></surname>
<given-names><![CDATA[M. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Bauer]]></surname>
<given-names><![CDATA[L. I. de]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández-Tejeda]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<source><![CDATA[Urban air pollution and forests]]></source>
<year>2002</year>
<page-range>44&#8210;67</page-range><publisher-loc><![CDATA[Springer ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Morgado-González]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez-Guerrero]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Villanueva-Díaz]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Terrazas]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Ramírez-Herrera]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[de la Rosa]]></surname>
<given-names><![CDATA[P. H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Densidad de la madera de Pinus hartwegii Lind. en dos niveles altitudinales y de exposición]]></article-title>
<source><![CDATA[Agrociencia]]></source>
<year>2019</year>
<volume>53</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>645&#8210;660</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Norby]]></surname>
<given-names><![CDATA[R. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Zak]]></surname>
<given-names><![CDATA[D. R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ecological lessons from free-air CO2 enrichment (FACE) experiments]]></article-title>
<source><![CDATA[Annual Review of Ecology, Evolution, and Systematics]]></source>
<year>2011</year>
<volume>42</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>181&#8210;203</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Núñez-García]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez-Guerrero]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Terrazas-Salgado]]></surname>
<given-names><![CDATA[T. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Vargas-Hernández]]></surname>
<given-names><![CDATA[J. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Villanueva-Díaz]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Análisis del incremento en área basal de Pinus hartwegii Lindl. a diferente altitud y exposición en el Cerro de Jocotitlán, Estado de México]]></article-title>
<source><![CDATA[Revista Chapingo Serie Ciencias Forestales y del Ambiente]]></source>
<year>2021</year>
<volume>27</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>73&#8210;88</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="book">
<collab>R Core Team</collab>
<source><![CDATA[A language and environment for statistical computing]]></source>
<year>2020</year>
<publisher-loc><![CDATA[Vienna, Austria ]]></publisher-loc>
<publisher-name><![CDATA[R Foundation for Statistical Computing]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ramírez-Contreras]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Rodríguez-Trejo]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Plantas nodriza en la reforestación con Pinus hartwegii Lindl]]></article-title>
<source><![CDATA[Revista Chapingo Serie Ciencias Forestales y del Ambiente]]></source>
<year>2009</year>
<volume>15</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>43&#8210;48</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Reed]]></surname>
<given-names><![CDATA[S. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Townsend]]></surname>
<given-names><![CDATA[A. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Davidson]]></surname>
<given-names><![CDATA[E. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Cleveland]]></surname>
<given-names><![CDATA[C. C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Stoichiometric patterns in foliar nutrient resorption across multiple scales]]></article-title>
<source><![CDATA[New Phytologist]]></source>
<year>2012</year>
<volume>196</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>173&#8210;180</page-range></nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rothstein]]></surname>
<given-names><![CDATA[D. E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Soil amino-acid availability across a temperate-forest fertility gradient]]></article-title>
<source><![CDATA[Biogeochemistry]]></source>
<year>2009</year>
<volume>92</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>201&#8210;215</page-range></nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rowell]]></surname>
<given-names><![CDATA[D. L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Soil science: Methods &amp; applications]]></source>
<year>2014</year>
<publisher-loc><![CDATA[UK ]]></publisher-loc>
<publisher-name><![CDATA[Routledge]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="book">
<collab>Statistical Analysis System (SAS)</collab>
<source><![CDATA[SAS/ETS 9.3 User&#8217;s Guide]]></source>
<year>2011</year>
<publisher-loc><![CDATA[Cary, NC, USA ]]></publisher-loc>
<publisher-name><![CDATA[Author]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Schlesinger]]></surname>
<given-names><![CDATA[W. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Bernhardt]]></surname>
<given-names><![CDATA[E. S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Biogeochemistry: an analysis of global change]]></source>
<year>2020</year>
<edition>4th ed.</edition>
<publisher-loc><![CDATA[San Diego, California, USA ]]></publisher-loc>
<publisher-name><![CDATA[Academic Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="book">
<collab>Secretaría de Medio Ambiente y Recursos Naturales (SEMARNAT)</collab>
<source><![CDATA[Norma Oficial Mexicana NOM-021-SEMARNAT-2000 Que que establece las especificaciones de fertilidad, salinidad y clasificación de suelos, estudio, muestreo y análisis]]></source>
<year>2000</year>
<publisher-loc><![CDATA[México ]]></publisher-loc>
<publisher-name><![CDATA[Diario Oficial de la Federación]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[L. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez&#8208;Guerrero]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Doane]]></surname>
<given-names><![CDATA[T. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Horwath]]></surname>
<given-names><![CDATA[W. R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Isotopic and nutritional evidence for species&#8208;and site&#8208;specific responses to N deposition and elevated CO2 in temperate forests]]></article-title>
<source><![CDATA[Journal of Geophysical Research: Biogeosciences]]></source>
<year>2015</year>
<volume>120</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1110&#8210;1123</page-range></nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Thomas]]></surname>
<given-names><![CDATA[K. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Prescott]]></surname>
<given-names><![CDATA[C. E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Nitrogen availability in forest floors of three tree species on the same site: the role of litter quality]]></article-title>
<source><![CDATA[Canadian Journal of Forest Research]]></source>
<year>2000</year>
<volume>30</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>1698&#8210;1706</page-range></nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Torres-Duque]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez-Guerrero]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Trejo-Téllez]]></surname>
<given-names><![CDATA[L. I.]]></given-names>
</name>
<name>
<surname><![CDATA[Reyes-Hernández]]></surname>
<given-names><![CDATA[V. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Correa-Díaz]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Estequiometría de la caída de acículas de pino en dos bosques alpinos de México]]></article-title>
<source><![CDATA[Revista Chapingo Serie Ciencias Forestales y del Ambiente]]></source>
<year>2022</year>
<volume>28</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>57&#8210;74</page-range></nlm-citation>
</ref>
<ref id="B38">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Verchot]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Holmes]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Mulon]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Groffman]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Lovett]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Gross vs net rates of N mineralization and nitrification as indicators of functional differences between forest types]]></article-title>
<source><![CDATA[Soil Biology and Biochemistry]]></source>
<year>2001</year>
<volume>33</volume>
<numero>14</numero>
<issue>14</issue>
<page-range>1889&#8210;1901</page-range></nlm-citation>
</ref>
<ref id="B39">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zar]]></surname>
<given-names><![CDATA[J. H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Biostatistical analysis: Pearson new international edition]]></source>
<year>2010</year>
<edition>5th ed.</edition>
<publisher-loc><![CDATA[New Jersey, USA ]]></publisher-loc>
<publisher-name><![CDATA[Prentice Hall]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B40">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zhan-Yuan]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Fu-Sheng]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[De-Hui]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Qiong]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Guang-Sheng]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Soil inorganic nitrogen and microbial biomass carbon and nitrogen under pine plantations in Zhanggutai sandy soil]]></article-title>
<source><![CDATA[Pedosphere]]></source>
<year>2008</year>
<volume>18</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>775&#8210;784</page-range></nlm-citation>
</ref>
<ref id="B41">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Peng]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Xue]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Yang]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Yang]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Niu]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[. . . Wang]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Dynamics of soil water extractable organic carbon and inorganic nitrogen and their environmental controls in mountain forest and meadow ecosystems in China]]></article-title>
<source><![CDATA[CATENA]]></source>
<year>2020</year>
<volume>187</volume>
</nlm-citation>
</ref>
<ref id="B42">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Yuan]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[Q.]]></given-names>
</name>
<name>
<surname><![CDATA[Yin]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Plant nitrogen acquisition from inorganic and organic sources via root and mycelia pathways in ectomycorrhizal alpine forests]]></article-title>
<source><![CDATA[Soil Biology and Biochemistry]]></source>
<year>2019</year>
<volume>136</volume>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
