Soil-vegetation relationships influence the regeneration after fire in the species composition and structural parameters of Cerrado-Amazonia ecotone

• Published in: Acta Botânica Brasílica Vol. 38
• Main Authors: Raysa Valéria Carvalho Saraiva, Léo Vieira Leonel, Izadora Santos de Carvalho, Maurício Santos da Silva, Paloma Drielle Mourão da Fonseca, Niedja Bezerra Costa, José Roberto Pereira de Sousa, Fabrício de Oliveira Reis, Francisca Helena Muniz, Tiago Massi Ferraz
• Format: Journal Article
• Language: English; Portuguese
• Published: Sociedade Botânica do Brasil 01-01-2024
• Subjects: Cerrado; environmental filters; gallery forest; herbaceous; physiognomies; shrubs
• ISSN: 1677-941X
• DOI: 10.1590/1677-941x-abb-2023-0169

ABSTRACT In ecotonal Cerrado areas, the addition of Amazonian and Atlantic Forest species mainly occurs through connections between forest areas and forest physiognomies. In this context, the biome is a unique region for research on the influence of geographical and historical factors on its biota. In tropical ecotonal regions, integrated communities can exist on soils that present variations in fertility, physical properties and depth, which results in heterogeneity of physiognomies. It was tested the hypothesis that edaphic conditions related to calcium availability are significantly related to species composition and structural parameters in two physiognomies. The study was conducted in the Cerrado of the Chapada das Mesas National Park (CMNP) in the city of Carolina, Northeast Brazil, and the sample universe consisted of 18 areas in two physiognomies. The initial hypothesis was confirmed. The results and inferences about the vegetation structure and physical-chemical parameters of the soil, suggest that the management for conservation of the CMNP must consider the particularities of the Cerrado physiognomies and the vegetation responses to environmental filters, such as edaphic conditions and associations with other organisms.