A contribuição da Geomorfologia para o conhecimento da fitogeografia nativa do estado de São Paulo e da representatividade das Unidades de Conservação de Proteção Integral / The contribution of geomorphology to the knowledge of native phytogeography in the state of São Paulo and representativeness of the Conservation Units of Integral Protection


IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia




The analysis of native vegetation maps of the state of São Paulo elaborated throughout the XIX, XX and XXI centuries shows different possibilities for the interpretation of the state phytogeography, although it also reveals many converging aspects, e.g., forest types in the Atlantic façade adapted to higher moisture than those located in the interior of the state. A review of the geomorphological knowledge of the state of São Paulo that allowed differentiating the main aspects of the state relief was prepared, in order to seek for territorial elements to promote the understanding of the state phytogeographical organization. Comparison among the proposals that described and mapped the native vegetation with the main types of relief pointed out the possible occurrence of twenty-three types of terrestrial environments with phytogeographical affinities, besides two aquatic environments and exception environments, with very restricted occurrence. Reconnaissance of this set of environments also allowed to prepare an analysis of the distribution of Conservation Units (UCs) with Integral Protection in the state territory that featured the concentration of these units in the Serra do Mar - Paranapiacaba, followed by the Atlantic Plateau, in contrast to the rest of state that has large gaps and isolated conservation units. The current protected area in such category reaches 3.8% of the state territory. The final results showed that the knowledge of the state native phytogeography must be improved to express its real original diversity, and the relief must be the territorial base for this organization, since it adds botanical, climatic and soil data. It is suggested that the new mapping proposal adopts a digital platform and scales between 1:250,000 and 1:500,000, besides a physiognomical-ecological classification for the upper levels, accepting subdivisions based on flora or specific environmental conditions. The terminology should be that proposed by the IBGEs Brazilian vegetation official map, adapted to to more localized conditions. The better the conceptual and information bases are, the better will be the actions focused on biodiversity conservation or restoration, as well as processes of environmentalterritorial planning. Thus, the lack of proper phytogeographical knowledge may induce actions that lead to bio-simplification and make more and more easier the homogenization of landscapes.


biodiversidade biodiversity environmental protection geomorfologia geomorphology proteção ambiental vegetação vegetation

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