Phytosociology of the tree level in native forest areas and in degraded areas recovery program under the influence of mining, Paragominas, Pará, Brasil
DOI:
https://doi.org/10.6008/CBPC2318-2881.2021.003.0002Keywords:
Lecythidaceae, Croton, Cecropia, RestaurationAbstract
The Amazon biome has suffered intensely from the process of deforestation of its natural plant areas since the 20th century, with incentives from the government itself for the occupation and use of its lands. Degraded Areas Recovery Programs (PRAD), implemented by large companies that alter and degrade the landscape for its implementation and operation, have favored the restoration of vegetation and its ecological processes and services. This research aimed to analyze the floristic and structural composition in areas of Native Forest (FN) and in PRAD areas in HYDRO mining, municipality of Paragominas, Pará. It also aimed to identify the most representative species in the two environments and relate the parameters phytosociological with the morphological and ecological attributes. Eighteen plots of 40 x 250 m were used (9 in the PRAD and 9 in the FN) and all individuals with CAP cm30 cm were sampled. To compare the richness and abundance of the two areas, the Bray Curtis analysis and the TWINSPAN divisive classification analysis were performed. A total of 60 families, 166 genera and 302 species were sampled. The richest genera were Pouteria and Inga. In PRAD, Croton matourensis and Cecropia distachya had the highest IVI and in FN Lecythis idatimon, Eschweilera coriacea and Rinorea guianense. The Bray-Curtis analysis and grouping by means of groups showed the floristic (richness) and structural (abundance) separation of the two environments analyzed, with a dissimilarity around 95%. In the first division of Twinspan groups, there was a separation of all the parcels sampled in the native forest area (FN) and the parcels sampled in the PRAD areas (PR). We recommend that studies which focus on understanding how the life characteristics of species provide them with better aptitude to occupy and settle in certain areas, be developed.
Downloads
Downloads
Published
Issue
Section
License
Copyright (c) 2021 Nature and Conservation
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
The CBPC - Companhia Brasileira de Produção Científica (Brazil CNPJ: 11.221.422/0001-03) the material rights of the published works. The rights relate to the publication of the work anywhere in the world, including rights to renewals, expansions and dissemination of the contribution, as well as other subsidiary rights. All electronically published works may subsequently be published in printed collections under the coordination of this company and / or its partners. The authors preserve the copyright, but are not allowed to publish the contribution in another medium, printed or digital, in Portuguese or in translation.