REGENERAÇÃO NATURAL EM FORMAÇÕES FLORESTAIS DE UMA UNIDADE DE CONSERVAÇÃO, MARACANÃ, PARÁ, BRASIL.
2015
Daniel Gonçalves Jardim | Mário Augusto Gonçalves Jardim | Adriano Costa Quaresma | Salustiano Villar Costa Neto
португальский. <!--[if gte mso 9]><xml> <o:OfficeDocumentSettings> <o:RelyOnVML /> <o:AllowPNG /> </o:OfficeDocumentSettings> </xml><![endif]--> <p class="MsoNormal" style="margin-left: 0cm; text-align: justify; text-indent: 0cm; line-height: normal;"><span style="mso-bidi-font-size: 12.0pt;">o objetivo da pesquisa foi conhecer a composição florística, a estrutura e as formas de vida da regeneração natural em duas formações florestais da Área de Proteção Ambiental Algodoal-Maiandeua, Maracanã, Pará. Foram delimitadas duas </span><span style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: TimesNewRomanPSMT;">parcelas de 50 x 50 m (0,5 ha) na floresta seca e duas na floresta inundável. Cada parcela foi dividida em 50 subparcelas de 2 x 2 m distribuídas aleatoriamente e identificados e quantificados todos os indivíduos com altura </span><span style="mso-bidi-font-size: 12.0pt;">≥ 5 cm e ≤ 80 cm, calculada a densidade e a frequência relativa e caracterizada as formas de vida das espécies. Na floresta seca foram registrados 1.926 indivíduos em 34 famílias, 59 gêneros e 78 espécies. Fabaceae, Myrtaceae e Rubiaceae se destacaram com o maior número de espécies (9 spp. cada) e <em style="mso-bidi-font-style: normal;">Myrcia fallax</em>, <em style="mso-bidi-font-style: normal;">Pradosia pedicellata e <em style="mso-bidi-font-style: normal;">Psychotria barbiflora com maior número de indivíduos. Na floresta inundável foram registrados 2.663 indivíduos em 28 famílias, 50 gêneros e 55 espécies. As famílias com maior número de espécies foram Araceae, Arecaceae e Fabaceae (6 spp.) e <em style="mso-bidi-font-style: normal;">Symphonia globulifera</em>,<em style="mso-bidi-font-style: normal;"> Virola surinamensis e <em style="mso-bidi-font-style: normal;">Macrolobium bifolium com maior número de indivíduos. Os resultados indicaram alta heterogeneidade de espécies entre as duas florestas e a outras florestas das restingas brasileiras. </span> <!--[if gte mso 9]><xml> <w:WordDocument> <w:View>Normal</w:View> <w:Zoom>0</w:Zoom> <w:TrackMoves /> <w:TrackFormatting /> <w:HyphenationZone>21</w:HyphenationZone> <w:PunctuationKerning /> <w:ValidateAgainstSchemas /> <w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid> <w:IgnoreMixedContent>false</w:IgnoreMixedContent> <w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText> <w:DoNotPromoteQF /> <w:LidThemeOther>PT-BR</w:LidThemeOther> <w:LidThemeAsian>X-NONE</w:LidThemeAsian> <w:LidThemeComplexScript>X-NONE</w:LidThemeComplexScript> <w:Compatibility> <w:BreakWrappedTables /> <w:SnapToGridInCell /> <w:WrapTextWithPunct /> <w:UseAsianBreakRules /> <w:DontGrowAutofit /> <w:SplitPgBreakAndParaMark /> <w:DontVertAlignCellWithSp /> <w:DontBreakConstrainedForcedTables /> <w:DontVertAlignInTxbx /> <w:Word11KerningPairs /> <w:CachedColBalance /> 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