Main Article Content
Studies on the composition and structure of vegetation can provide important information for decision-making and the application of forest-management techniques. The aim of this research was to analyse an area of Caatinga using vegetation characterisation and forest inventory in the Rocha Eterna Community, in the district of São João do Piauí, Brazil. Simple Random Sampling was used, installing 17 sampling units of 20 x 20 m. The phytosociological parameters of the horizontal and vertical structure, the floristic diversity of the species and the timber production in the area were evaluated. Fabaceae was the most representative family. The three most representative species in the area were Senna acuruensis (Benth.) H.S. Irwin & Barneby, Sideroxylon obtusifolium (Roem. & Schult.) T. D. Penn. and Mimosa tenuiflora (Willd.) Poir. The Shannon-Weaver diversity index (H') for the area was 1.74 nats.ind-1. The estimated basal area for the area was 8.68 m².ha-1. The estimated actual volume was 36.56 m³.ha-1. Species diversity in the fragment under study was considered low.
Prado EP, Van Mier JGM. Effect of particle structure on mode I fracture process in concrete. Engineering fracture mechanics. 2003;70(14):1793-1807.
Vasconcelos ADM, Henriques IGN, Souza MP, Santos WS, Santos WS, Ramos GG. Floristic and phytosociological characterization in Caatinga area for forest management purposes in São Francisco-PI. Scientific Farming in the Semiarid, Ducks. 2017;13(4):329-337.
Souza PF. Analysis of the vegetation of a caatinga fragment in the jatobá reservoir microbasin. Patos-PB. Course conclusion work (Forest Engineering) - Federal University of Campina Grande, Patos, PB. 2009;51.
Santos WS, Souza MP, Nobrega GFQ, Medeiros FS, Alves AR, Hokanda AC. Floristic-phytosociological characteri-zation of the woody component In a caatinga fragment in the municipality of Upanema-RN. Native, Sinop. 2017a;5(2): 85-91.
DOI: 10.5935 / 2318-7670.v05n02a02
Souza JS, Espírito Santo FDB, Fontes ALAL, Oliveira-Filho AT, Botezelli L. Analysis of floristic and structural variations of the tree community of a semideciduous forest fragment on the banks of the Capivari river, Lavras - MG. Tree Magazine, Viçosa. 2003;27(2):185-206.
Aguiar RB, Gomes, JRC. Groundwater source Registration Project, Piauí: Diagnosis of the Municipality of São João do Piauí-PI-CPRM-Fortaleza; 2004.
Nascimento JM, Shi LZ, Tam J, Chandsawangbhuwana C, Durrant B, Botvinick EL, Berns MW. Comparison of glycolysis and oxidative phosphorylation as energy sources for mammalian sperm motility, using the combination of fluorescence imaging, laser tweezers, and real‐time automated tracking and trapping. Journal of Cellular Physiology. 2008;217(3):745-751.
Felfili JM, Rezende RP. Concepts and methods in phytosociology. Brasília: UnB, Department of Forest Engineering. 2003;68. (Forest Technical Communications).
Zakia MJB, Pareyn FGC, Riegelhaupt E. Weight and volume equations for eight native woody species of Seridó-RN. In: Forest Management Plan for the Seridó-RN Region. Christmas: Project UNDP / FAO / IBAMA / BRA / 87/007. 1988;4(1).
Calixto Junior JT, Drumond MA. Comparative study of the phytosociological structure of two Caatinga fragments at different conservation levels. Brazilian Forest Research, Colombo. 2014;34(80):345-355.
Dias C, Ejtemai O, Sarvi M, Burd M. Exploring pedestrian walking through angled corridors. Transportation Research Procedia. 2014;2:19-25.
Leite KR, Reis ST, Junior JP, Zerati M, de Oliveira Gomes D, Camara-Lopes L H. Srougi M. PD-L1 expression in renal cell carcinoma clear cell type is related to unfavorable prognosis. Diagnostic Pathology. 2015;10(1):189.
Santos WS, Henriques IGN, Santos WS, Ramos GG, Vasconcelos GS, Vasconcelos ADM. Floristic-phytosocio-logical analysis and logging potential in a caatinga area under forest management. Scientific Farming in the Semiarid, Ducks. 2017b;13(3):213- 211.
Oliveira PTB, DMBM Thunder, Carvalho ECD, Souza BC, Ferreira LMR. Floristic and phytosociology of four vegetation remnants in mountainous areas in Paraíba cariri. Caatinga Magazine, Mossoró. 2009;22(4):169-178.
We read JR, Rodal MJN. Phytosociology of the woody component of a stretch of Caatinga vegetation in the Serra da Capivara Piauí National Park, Brazil. Minutes Bot Bras. 2002;16:23-42.
Rodal MJN, Andrade KVA, Sales MF, Gomes APS. Phytosociology of the woody component of a vegetation refuge in the municipality of Buíque, Pernambuco. Brazilian Journal of Biology. 1998;58(3): 517-526.
Rodal MJN, Birth LM. The arboreal component of a dry forest in northeastern Brazil. Brazilian Journal of Biology. 2006;66(2A):479-491.
Amorim IL, Sampaio EVSB, Araújo EL. Flora and structured shrub-tree vegetation of an area of Caatinga do Seridó, RN. Brazil. Brazilian Botanical Act, Porto Alegre. 2005;19(3):615-623.
Xavier EPL, Paes JB, Lira Filho JA. Wood potential of two microregions of Paraíba State. Biomass and Energy. 2005;2(2): 103-112.