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Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:49:49Z No. of bitstreams: 1 S0100-67622008000500016.pdf: 515457 bytes, checksum: 160fb1dd1fe4c7b59bffc7db372f0216 (MD5) Made available in DSpace on 2013-08-22T18:49:49Z (GMT). No. of bitstreams: 1 S0100-67622008000500016.pdf: 515457 bytes, checksum: 160fb1dd1fe4c7b59bffc7db372f0216 (MD5) Previous issue date: 2008-10-01 Made available in DSpace on 2013-09-30T19:40:13Z (GMT). No. of bitstreams: 2 S0100-67622008000500016.pdf: 515457 bytes, checksum: 160fb1dd1fe4c7b59bffc7db372f0216 (MD5) S0100-67622008000500016.pdf.txt: 44089 bytes, checksum: 318e241c4627cb5b18d8cc4414c20442 (MD5) Previous issue date: 2008-10-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:10:40Z No. of bitstreams: 2 S0100-67622008000500016.pdf: 515457 bytes, checksum: 160fb1dd1fe4c7b59bffc7db372f0216 (MD5) S0100-67622008000500016.pdf.txt: 44089 bytes, checksum: 318e241c4627cb5b18d8cc4414c20442 (MD5) Made available in DSpace on 2014-05-20T15:10:40Z (GMT). No. of bitstreams: 2 S0100-67622008000500016.pdf: 515457 bytes, checksum: 160fb1dd1fe4c7b59bffc7db372f0216 (MD5) S0100-67622008000500016.pdf.txt: 44089 bytes, checksum: 318e241c4627cb5b18d8cc4414c20442 (MD5) Previous issue date: 2008-10-01 O trabalho objetivou descrever e avaliar a estrutura da regeneração de espécies arbóreas em dois remanescentes naturais e em três áreas reflorestadas com espécies nativas e em um povoamento de Eucalyptus robusta, situados em área de várzea do rio Mogi-Guaçu, Luiz Antônio, SP (21º31'S e 47º55'W). Foram amostradas 40 subparcelas de 2 m² em cada remanescente natural e sub-bosque de eucalipto e 60 subparcelas de 3,5 m² em cada área reflorestada. Foram amostrados todos os indivíduos arbóreos de regeneração com altura > a 10 cm e diâmetro do caule até a altura do peito (DAP) < 5,0 cm e analisados separadamente, em quatro classes de altura, a diversidade florística, a regeneração natural (Rn%), o valor de importância (VI) e a similaridade da regeneração com indivíduos de DAP > 5 cm. Foram identificados 1.990 indivíduos, pertencentes a 24 famílias, 46 gêneros e 51 espécies. Cabralea canjerana, Psidium cattleyanum, Nectandra megapotamica, Acacia polyphylla e Syzygium cumini estavam entre as espécies mais representadas nas quatro categorias de tamanho. O reflorestamento com espécies nativas em áreas degradadas da várzea do rio Mogi-Guaçu promoveu a regeneração natural com biodiversidade superior aos remanescentes naturais de florestas ciliares sob efeito de borda e contribuiu para com o processo de restauração de ecossistemas florestais. O povoamento de Eucalyptus robusta com cerca de 20 anos de idade favoreceu a regeneração de espécies climácicas e secundárias. The phytosociology of the woody stratum of both young regenerating individuals and seed banks are quality indicators of heterogeneous reforestations. The objetive of this research was to evaluate the structure of regeneration of the arboreal species in two natural remainders, in three areas reforested with native species and in a Eucalyptus robusta settlement located in a floodplain of Mogi-Guaçu river in Luiz Antônio County (21°31´S and 47°55´W), São Paulo, Brazil. Sampling was collected in 40 subplots of 2 m²in of each natural remainder and each eucalyptus sub-forest, as well as 60 subplots of 3.5 m²in each area reforested. All individuals with height > 10 cm and diameter at breast height (DBH) < 5.0 cm were measured and analyzed separately in four height classes according to floristic diversity, similarity, density, frequency, dominance, importance value and natural regeneration. A total of 2,010 individuals were identified, belonging to 24 families, 46 genera and 51 species. The species with greater importance values were Cabralea canjerana, Psidium cattleyanum, Nectandra megapotamica, Acacia polyphylla and Syzygium cumini, well represented in the four height classes. Reforestation with native species in a degraded Mogi-Guaçu River floodplain promoted natural regeneration with more biodiversity than in natural remainders submitted to border effect, and contributed to the forest ecosystem restoration process. The 20-year-old Eucalyptus robusta plantation promoted the regeneration of climax and secondary species. Universidade Federal de Campina Grande (UFCG) Departamento de Engenharia Florestal Universidade Estadual Paulista Departamento de Produção Vegetal International Paper do Brasil Setor de Pesquisa e Gestão Ambiental Universidade Estadual Paulista Departamento de Produção Vegetal

Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-27T11:22:34Z No. of bitstreams: 0Bitstream added on 2014-05-27T14:28:27Z : No. of bitstreams: 1 2-s2.0-36749088057.pdf: 498404 bytes, checksum: 285ddc75404dcd37ea32f681eb98907a (MD5) Made available in DSpace on 2014-05-27T11:22:34Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-09-01 This study objective was to evaluate the effective revegetation in a Mogi Guaçu River degraded floodplain area, located at Luiz Antonio municipality (21° 31' S e 47° 55' W), São Paulo State, Brazil. Two native riparian forest remnants (RIP1 and RIP2) and three 10-year-old reforested areas, planted of native species (R1, R2 and R3), were analyzed by using phytosociological describers of the arboreal stratum (trees with DBH ≥ 5 cm) as indicators. The arboreal stratum inventory was accomplished by 180 plots (10 × 10 m each), 60 representing every native forest and 20 for every reforested area. A total of 60 arboreal species was recorded, only six species (Cecropia hololeuca, Crotón urucurana, Genipa americana, Inga striata, Nectandra megapotamica e Peltophorum dubium) occurring in all the five studied areas. Seventeen species were common to both native forests, and nine species were recorded in all the reforested areas. Sebastlania commersonlana and Guarea macrophyllawere recorded in the native forests (RlP1 and RIP2), and Cecropia hololeuca, Croton urucurana and Inga striata occurring in all the reforested areas, were the species that best characterize the physiognomy of local diversity and were the most important among the studied species. The results showed that the rehabilitation of the areas made by the reforestation created conditions to implant forests with similar structures of the adjacent natural remainders. The reforestation with native species performed in the degraded floodplain of Mogi Guaçu River, initially with the predomination of invasive grasses, has been effective at the first stage of the ecological restoration process. The reforestation is making possible the natural regeneration of species from the adjacent remnants, what indicates that the similarity between planted forests and the native ones are rising through the time. The phytosociology, accomplished ten years after the planting date, is adequate to evaluate the effectiveness of the reforestation during the restoration process of degradated areas in the Mogi Guaçu floodplain. Curso de Graduação em Engenharia Florestal Centro de Saúde e Tecnologia Rural Campus de Patos, Caixa Postal 64, Patos, PB - 58700-970 Departamento de Produção Vegetal Faculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista, Via de Acesso Prof. Paulo Donato Castellane, Km 5, Jaboticabal, SP - 14884-900 Biólogo da International Paper do Brasil, Rodovia SP 255 - Km. 41, Luiz Antonio, SP -14210-000 Unidade Univesitária Universidade Estadual do Mato Grosso do Sul, Rodovia Aquidauana / UEMS, Km 12, Aquidauana, MS - 79200-000 Departamento de Produção Vegetal Faculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista, Via de Acesso Prof. Paulo Donato Castellane, Km 5, Jaboticabal, SP - 14884-900