Diagnóstico florístico e ambiental de um bosque de manguezal na Reserva Extrativista Chocoaré Mato Grosso, Santarém Novo, Pará, Brasil.

Abstract

The objective of the research was to carry out the floristic and environmental diagnosis in a stretch of mangrove forest in the Chocoaré Mato Grosso Extractive Reserve, Santarém Novo, Pará. The study was carried out in July and August 2019 in 10 plots of 10 mx 50 m, and height and DBH ≥ 2.5 cm of all tree species were measured and phytosociological parameters of height, diameter, relative frequency, relative density, basal area, relative dominance, cover value and importance value were calculated. The environmental diagnosis was applied to the residents of the municipality's headquarters, Vila de Pedrinhas, Vila de Pirateua and Vila de Pacuja) using semi-structured questionnaires with open and closed questions. Three families, three genera and three species were registered in 620 individuals with 447 of Rhizophora mangle L., 119 of Avicennia germinans (L.) Stearn and 54 of Laguncularia racemosa (L.) Gaertn. Rhizophora mangle occurred in all plots, while Laguncularia racemosa (inkwell) in five plots. According to the environmental diagnosis, the pebble community uses the mangrove more frequently and claims that it is in a good state of conservation, generating harmony between man, nature and environmental sustainability.