Detalhes bibliográficos
| Ano de defesa: |
2012 |
| Autor(a) principal: |
PESSOA, Mayara Maria de Lima
 |
| Orientador(a): |
FELICIANO, Ana Lícia Patriota |
| Banca de defesa: |
ANDRADE, Leonardo Alves,
RODAL, Maria Jesus Nogueira,
SILVA, Ana Carolina Borges Lins e |
| Tipo de documento: |
Dissertação
|
| Tipo de acesso: |
Acesso aberto |
| Idioma: |
por |
| Instituição de defesa: |
Universidade Federal Rural de Pernambuco
|
| Programa de Pós-Graduação: |
Programa de Pós-Graduação em Ciências Florestais
|
| Departamento: |
Departamento de Ciência Florestal
|
| País: |
Brasil
|
| Palavras-chave em Português: |
|
| Área do conhecimento CNPq: |
|
| Link de acesso: |
http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/5532
|
Resumo: |
In the quest to understand the natural regeneration under homogeneous plantings and the native forest, the present research aimed at analyzing the ecological succession of native vegetation at a dense ombrophylous forest remnant and within Corymbia citriodora understories (Hook.) K.D. Hill & L.A.S. Johnson, in order to conduct a comparative analysis regarding the role of these settlements in the preservation and renovation of the Atlantic forest biodiversity, in Sirinhanhém town, Pernambuco. The study was developed on two planting areas with the C. citriodora species, (Planted Forest – PF1 and PF2) besides a fragment of dense ombrophylous forest (Natural Forest – NF) adjacent to one of the reforestation areas. For the natural regeneration analysis, twelve portions of 5 m x 5 m (25m²) were launched on each area, and also the height and diameter of the individuals was measured in an inclusion level with Basis Height Circumference (BHC) 0,30 m < 15cm), where : C1 = height (H) ≥ 1,0 up to 2,0 m; C2 = H > 2,0 up tp 3,0 m; C3 = H > 3,0 m and Chest Height Circumference (CHC) < 15cm. The phytosociological parameters were calculated as follows: Density, Frequency, Dominance and Importance Value. For the vertical structure analysis, and estimation study was done regarding the Total Natural Regeneration per Height Classes. Moreover, the ecological groups, the dispersion syndrome, the spatial distribution and the floristic similarities were calculated. For the floristic diversity, the Shannon’s diversity index was used. On Area 1 (PF1), 225 individuals were sampled, distributed among 25 species. On Area 2 (PF2), 402 individuals and 23 species. On Area 3 (PF3), 418 individuals of sampled which belonged to 66 species. On the three areas of study, the greatest percentage of species belong to the group of initial secondary, with a type of zoochoric dispersion and assembled distribution. For the Total Natural Regeneration per Height Classes, on Area 1, Vismia guianensis, Miconia minutiflora and Guarea guinonia stand out from all. On Area 2, Miconia minutiflora. On Area 3, Protium heptaphyllum were the species which represented the highest values, indicating the importance of these to the natural regeneration on the study areas. Shannon’s diversity index were considered as low on Areas 1 and 2, if compared (2,10 e 2,26 nats/ind.) if compared to Area 3 (3,12 nats/ind). Although the succession process that was observed, due to the appearance and establishment of some species belonging to the arboreal natural vegetation, the diversity index obtained on Area 1 and 2, if compared to other studies and to the fragment used on this research, at first glance can’t stand the ideia of using the eucalyptus as a facilitator specie to the recovery of the Atlantic forest biodiversity on the areas of study, which brings the need of future studies which aim at the dynamic of the succession process conducted under homogeneous reforestations. |
