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Atlantic Forest succession over calcareous soil, Parque Estadual Turístico do Alto Ribeira - PETAR, SP

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Author(s): AIDAR MARCOS PEREIRA MARINHO | GODOY JOÃO RUFFIN LEME DE | BERGMANN JANINE | JOLY CARLOS ALFREDO

Journal: Revista Brasileira de Botânica
ISSN 0100-8404

Volume: 24;
Issue: 4;
Start page: 455;
Date: 2001;
Original page

Keywords: Secondary succession | Brazilian Atlantic Forest | tropical calcareous soil | Piptadenia gonoacantha | slash-and-burn agriculture

ABSTRACT
The forest succession after abandonment of slash-and-burn agriculture over calcareous soil in Brazilian Atlantic Forest was assessed. This is one of the world's most threatened Biome, with only 8% remaining. The study area is located over calcareous soil inside the Alto Ribeira Touristic State Park (PETAR), southeast Brazil. The phytossociological survey showed a successional pattern dominated by species of Leguminosae, especially Piptadenia gonoacantha (Mart.) J.F. Macbr. This species occurs in calcareous soils as a substitute of Tibouchina pulchra (Cham.) Cogn. (Melastomataceae) that is the most usual dominant tree species in early succession over acidic soil, which is the most common situation in this Biome. These results are important for a better understanding of Neotropical forest biodiversity and characterize a unique genetic bank in this highly endangered Biome. They are also decisive to support actions regarding rehabilitation of degraded lands and a potential tool for Neotropical forest sustainable management, both inside and around the conservation unit.
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