Descrição fitossociológica da comunidade herbácea das dunas de Curupu, Raposa, Maranhão

نویسندگان

چکیده

O Brasil apresenta uma imensa extensão territorial e grande faixa litorânea, com vegetação de dunas restingas observadas ao longo da costa do país. presente estudo teve como objetivo realizar um levantamento fitossociológico herbácea das Ilha Curupu, município Raposa/MA, o intuito contribuir para a conservação ampliar as informações sobre comunidade no Estado Maranhão. Para foi utilizado método parcelas 1x1m, sendo alocadas 50 parcelas. Foram analisados os seguintes parâmetros fitossociológicos: cobertura, frequência relativa, valor importância, índice diversidade Shannon (H´c), equabilidade Pielou (J´c) riqueza total. encontradas 25 espécies, distribuídas em 11 famílias. Com maior VI: Ipomoea pes-caprae (52,88%), Sporobolus virginicus (27,61%), Turnera pumilea (14,25%) Cenchrus echinatus (11,28%). Os valores foram: H'c 2,47 nats/m² J'c 0,74. Apesar estrato herbáceo Curupu apresentar semelhança outras áreas Maranhão, essa composição contribui local.Palavras-chave: diversidade, restinga, arranjo estrutural. Phytosociological description of the herbaceous community dunes Raposa, Maranhão state A B S T R C TBrazil has large extension and immense coastal strip, with vegetation observed along coast country. The present study aimed to carry out phytosociological survey municipality Raposa /MA contribute conservation dune expand information on for state. For survey, method plots1x1m was used, installments being allocated. following parameters were used: coverage, relative frequency, importance value, diversity measures: index equability (J´c), total richness. We found species, distributed in families. (52.88%), (27.61%), (14.25%), (11.28%) are more representative area. values 2.47 0.74. Although layer is similar other areas this composition contributes local diversity.

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ژورنال

عنوان ژورنال: Revista Brasileira de Geografia Física

سال: 2023

ISSN: ['1984-2295']

DOI: https://doi.org/10.26848/rbgf.v16.3.p1387-1396