<?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>0870-6352</journal-id>
<journal-title><![CDATA[Silva Lusitana]]></journal-title>
<abbrev-journal-title><![CDATA[Silva Lus.]]></abbrev-journal-title>
<issn>0870-6352</issn>
<publisher>
<publisher-name><![CDATA[Unidade de Silvicultura e Produtos Florestais]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0870-63522002000200005</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[Mata Nacional de Leiria: Indicadores Fitoecológicos]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Almeida]]></surname>
<given-names><![CDATA[Ana F.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Capelo]]></surname>
<given-names><![CDATA[Jorge]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mesquita]]></surname>
<given-names><![CDATA[Sandra]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,INIA - Instituto Nacional de Investigação Agrária Estação Florestal Nacional Departamento de Ecologia, Recursos Naturais e Ambiente]]></institution>
<addr-line><![CDATA[OEIRAS ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2002</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2002</year>
</pub-date>
<volume>10</volume>
<numero>2</numero>
<fpage>195</fpage>
<lpage>200</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S0870-63522002000200005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S0870-63522002000200005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S0870-63522002000200005&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Em parcelas de pinhal bravo instaladas na Mata Nacional de Leiria, pretendeu-se determinar combinações de plantas indicadoras das classes de qualidade do pinheiro bravo. Com este objectivo, efectuaram-se inventários de vegetação, utilizando-se para a análise desses dados o programa de classificação divisiva politética TWINSPAN e um teste de comparação múltipla de médias - teste de Newman-Keuls. Concluiu-se que a determinação de espécies indicadoras das classes de qualidade é, neste caso, apenas parcialmente possível em situações de baixa perturbação ambiental do sob-coberto.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Using maritime pine plots growing in the Mata Nacional de Leiria, we set out to identify combinations of plant class quality indicators for maritime pine. To accomplish this purpose, a vegetation inventory was carried out and the data analysed by the TWINSPAN divisive polythetic classification method, and by the Newman-Keuls multiple test for means comparison. We came to the conclusion that the determination of class quality species was, in this case, only partially possible in low environment disturbance situations.]]></p></abstract>
<abstract abstract-type="short" xml:lang="fr"><p><![CDATA[Dans des placettes d'échantillon situées dans Mata Nacional de Leiria, on a essayé de déterminer les associations d'espèces indicatrices des classes de qualité des peuplements de pin maritime. Dans ce but, on a efectué des inventaires de végétation, puis on a analysé les données obtenues avec le programme divisive polythétique TWINSPAN, ainsi que avec un test multiple de comparaison de moyennes - le test de Newman-Keuls. Nous en sommes arrivés a conclure que la détermination d'espèces indicatrices des classes de qualité n'était que partiellement possible dans les cas de faible perturbation du sous-bois.]]></p></abstract>
<kwd-group>
<kwd lng="pt"><![CDATA[pinhal bravo]]></kwd>
<kwd lng="pt"><![CDATA[plantas indicadoras]]></kwd>
<kwd lng="pt"><![CDATA[classes de qualidade]]></kwd>
<kwd lng="en"><![CDATA[maritime pine]]></kwd>
<kwd lng="en"><![CDATA[indicator species]]></kwd>
<kwd lng="en"><![CDATA[site-index]]></kwd>
<kwd lng="fr"><![CDATA[pin maritime]]></kwd>
<kwd lng="fr"><![CDATA[espèces indicatrices]]></kwd>
<kwd lng="fr"><![CDATA[classes de qualité]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align=center><b>Mata Nacional de Leiria: Indicadores Fitoecológicos</b></p>      <p>&nbsp;</p>     <p align=center><b>Ana F. Almeida<a name="top1"></a><a href="#1">*</a>, Jorge    Capelo**, Sandra Mesquita***</b></p>     <p align=center>* Investigadora Auxiliar, ** Assistente Investigação, *** Arquitecta Paisagista</p>     <p align=center>Estação Florestal Nacional. Departamento de Ecologia, Recursos Naturais e Ambiente. Quinta do Marquês, Av. da República 2780-149 OEIRAS</p>     <p>&nbsp;</p>     <p><b >Sumário:</b> Em parcelas de pinhal bravo instaladas na Mata Nacional de    Leiria, pretendeu-se determinar combinações de plantas indicadoras das classes    de qualidade do pinheiro bravo. Com este objectivo, efectuaram-se inventários    de vegetação, utilizando-se para a análise desses dados o programa de classificação    divisiva politética TWINSPAN e um teste de comparação múltipla de médias - teste    de Newman-Keuls. Concluiu-se que a determinação de espécies indicadoras das    classes de qualidade é, neste caso, apenas parcialmente possível em situações    de baixa perturbação ambiental do sob-coberto.</p>     <p ><b>Palavras-chave</b>: pinhal bravo; plantas indicadoras; classes de qualidade</p>     <p>&nbsp;</p>     <p><b>Abstract</b>. Using maritime pine plots growing in the Mata Nacional de Leiria, we set out to identify combinations of plant class quality indicators for maritime pine. To accomplish this purpose, a vegetation inventory was carried out and the data analysed by the TWINSPAN divisive polythetic classification method, and by the Newman-Keuls multiple test for means comparison. We came to the conclusion that the determination of class quality species was, in this case, only partially possible in low environment disturbance situations.</p>     ]]></body>
<body><![CDATA[<p> <b>Key words</b>: maritime pine; indicator species; site-index</p>     <p>&nbsp;</p>     <p><b >Résumé</b>: Dans des placettes d'échantillon situées dans Mata Nacional de Leiria, on a essayé de déterminer les associations d'espèces indicatrices des classes de qualité des peuplements de pin maritime. Dans ce but, on a efectué des inventaires de végétation, puis on a analysé les données obtenues avec le programme divisive polythétique TWINSPAN, ainsi que avec un test multiple de comparaison de moyennes - le test de Newman-Keuls. Nous en sommes arrivés a conclure que la détermination d'espèces indicatrices des classes de qualité n'était que partiellement possible dans les cas de faible perturbation du sous-bois.</p>     <p><b>Mots clés</b>: pin maritime; espèces indicatrices; classes de qualité</p>     <p>&nbsp;</p>     <p>Texto completo disponível apenas em PDF.</p>     <p>Full text only available in PDF format.</p>     <p>&nbsp;</p>     <p><b>Referências</b></p>     <!-- ref --><p >ALEXANDRIAN, D., 1986. Le choix des essences de reboisement en région méditerranéenne française: un exemple de liaison station-production. <i>Cemagref-Informations Techniques</i> pp. 63-5.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000022&pid=S0870-6352200200020000500001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p>ALMEIDA, A.F., 1989. <i>Avaliação Indirecta das Classes de Qualidade do Pinheiro Bravo. Indicadores fito-ecológicos</i>. Tese prog. carr., INIA, EFN.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000023&pid=S0870-6352200200020000500002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p>BARNES, B.V., D.R. ZAK, S.R DENTON, S.H SPURR, 1998<i>. Forest Ecology</i>,    4<sup>th</sup> ed., John Wiley &amp; Sons, Inc., New York.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000024&pid=S0870-6352200200020000500003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p>BRAUN-BLANQUET, J., 1965. <i >Plant sociology: the study of plant comunities</i>. Hafner, Londres, 439 pp.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000025&pid=S0870-6352200200020000500004&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p>CAJANDER, A.K., 1926. The theory of forest types.<i>Acta For. 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Cramer</i>, Vaduz.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000028&pid=S0870-6352200200020000500007&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p>HANKS, J.P., FITZHUGH, E. e HANKS, S.R., 1983. A habitat type classification system for ponderosa pine forests of northern Arizona. USDA <i>For. Serv. Gen. Tech. Report</i> RM-97. Rocky Mount. For. and Rge. Exp. Sta., Fort Collins, CO 22 pp.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000029&pid=S0870-6352200200020000500008&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p>HILL, M.O., 1979. <i>Twinspan - a Fortran Program for Arranging Multivariate Data in an Orded Two - Way Table by Classification of the Individuals and Attributes.</i> Cornell University, Ithaca, New York.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000030&pid=S0870-6352200200020000500009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p >HUNTER JR, M.L., 2000. <i>Maintaining Biodiversity in Forest Ecosystems</i>.    Cambridge Univ. Press, U.K.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000031&pid=S0870-6352200200020000500010&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p>KENT, M., COKER, P., 1994. <i>Vegetation Description and Analysis. A Practical    Approach</i>. John Wiley &amp; Sons, Lda, Chichester.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000032&pid=S0870-6352200200020000500011&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><p>&nbsp;</p>     <p><i>Submetido para publicação em Outubro de 2002</i></p>     <p ><i>Aceite para publicação em Novembro de 2002</i></p>     <p >&nbsp;</p>     <p ><a name="1"></a><a href="#top1">*</a> 1&ordm; Autor E-mail: <a href="mailto:ana.almeida@efn.com.pt">ana.almeida@efn.com.pt</a></p>      ]]></body><back>
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