Artigo
Análise estrutural em relictos de cerrado no parque estadual do Guartelá, município de Tibagi, estado do Paraná, Brasil
Strutural Analysis In Cerrado's Relicts At State Park Of Guarteĺ, Tibagi, Parana State, Brazil
Registro en:
Ciencia Florestal, v. 22, n. 3, p. 505-517, 2012.
0103-9954
1980-5098
10.5902/198050986618
WOS:000312050100008
2-s2.0-84867185282
2-s2.0-84867185282.pdf
4830964329792347
Autor
Carmo, Marta Regina Barrotto do
Andrade, Anna Luiza Pereira
Santos, Gisele Aparecida da Silva Doratti dos
Assis, Marco Antônio [UNESP]
Resumen
This study was accomplished in existing Cerrado's relicts at State Park Guartelá, Tibagi, PR (24°39'10S and 50°15'25W), which represent one of the last extreme-meridional remanescents of this type of formation. Fifty plots with dimensions of 5x5m were allocated for phyto-sociological analysis, including in the sample individuals with height ≥ 1 m, divided into two samples to evaluate the following strata: a) upper-plants with DAS ≥ 3 cm, and b) intermediate - plants with DAS <3cm. Moreover, in each plot, there were established sub-plots with dimensions of 1x1m for sampling the lower stratum, comprised by individuals with height <1m and >10cm. The complete survey found 1340 individuals distributed in 28 families, 66 genera and 115 species. The diversity index was higher for the mean component (H'=3.30), followed by the superior component (H'=3.09) and the inferior (H'=2.91). The frequent occurrence of bushes is a remarkable characteristic of the physiognomy of the areas inside the park and 82 % of the populations studied are distributed in aggregated standard. Because it is a marginal region of occurrence of cerrado vegetation, now under the influence of a subtropical climate, more humid and cold, compared to the core area of this biome, it is noted that these areas are characterized by a decrease in stature, richness and diversity of its flora. Nevertheless, they preserve typical species of the Brazilian Savannah; but, due to their distribution in relicts and been, in part, devastated, some are included in the red list of endangered plants in Parana state, which evidences the importance of conservation and management of these areas. Departamento Biologia Geral Universidade Estadual de Ponta Grossa, Av. Carlos Cavalcanti, 4748, Uvaranas, CEP 84030-910, Ponta Grossa (PR) Engenharia Florestal Universidade Federal do Paraná, Av. Pref. Lothário Meissner, 900, Jardim Botânico, CEP 80210-170, Curitiba (PR) Biológicas pela Universidade Estadual de Londrina Rodovia Celso Garcia Cid, Campus Universitário, Caixa Postal 6001, CEP 86051-980, Londrina (PR) Universidade Estadual Paulista, campus de Rio Claro, Av. 24 A, 1515, Bela Vista, CEP 13506-900, Rio Claro (SP) Universidade Estadual Paulista, campus de Rio Claro, Av. 24 A, 1515, Bela Vista, CEP 13506-900, Rio Claro (SP)