Estudo fitossociologico em uma floresta mesofila semidecidua secundaria na Estação Experimental de Angatuba, municipio de Angatuba, SP

AUTOR(ES)
DATA DE PUBLICAÇÃO

1993

RESUMO

A fitossociological study was carried out a secondary Forest area in the ?Estação Ecologica de Angatuba? of ?Instituto Florestal?, municipality of Angatuba, State of São Paulo (48º15` to 48º25`W and 23º30`S), and southeastern Brazil. The sampling area is situated on a branch of Angatuba Hill with altitudes between 608m and 817m; the climate was classified as Koeppen`s Cwa ? tropical, warm, with a non-rigorous dry winter. The annual mean temperature was 19ºC. the annual mean rainfall collected from 1964 to 1986 was 1321 mm. The water and climatic balance showed a 418 mm water excess and absence of water deficit during the analised period, considering the average values. The shallow soil with rock outcrops in several sampling points seems to allow its classification as Litolic, although a profile study was lacking. The chemical analysis showed that the soil is acid, distrophic with high level of organic matter in surface layers of most samples, suggesting that the cycles of nutrients play a fundamental role for the maintenance of this system. The vegetation was sampled by fifty 10m X10m plots laid out on a regular grid. Besides, outside the plots, additional collection were made throughout the ?Estação? by random hikes. One hundred seventy eight individuals were sampled, belonging to 48 families and 128 species, with at least 4,78 cm DBH. Fifty one species and 10 families were collected outside the plots... Note: The complete abstract is available with the full electronic digital thesis or dissertations

ASSUNTO(S)

comunidades vegetais ecossistema florestas - são paulo (estado) recursos naturais

ACESSO AO ARTIGO

Documentos Relacionados