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Universidade Federal de Santa Catarina Centro de Ciências Biológicas Departamento de Botânica Programa de Pós-graduação em Biologia Vegetal
| Content Provider | Semantic Scholar |
|---|---|
| Author | Hassemer, Gustavo Trevisan, Rafael |
| Copyright Year | 2013 |
| Abstract | The mineral coal exploitation process carried out in the past was the most serious way of the natural resources degradation in the South of Santa Catarina State region, among them the Atlantic Forest. This forest preservation and recuperation is, at present, the biggest challenge in the scientific field due to its huge diversity and its extinction risk in which a numerous number of species are submited. Before the preocupation with the future of this forest the present study aimed to create subsidy for the degraded areas environmental recuperation by the open pit coal mining in the South of Santa Catarina State, throught a floristic-phytosociological study and peripheral forest remnant an mined areas, as well as the interspecific interations observed in the sampled species. It was used the plot method quadrat, being demarcated 100 plots with 10 x 10 m totaling 1 ha of sampled area where it was measured the stems diameters, 1,30 from de soil ≥ 5 cm and calculate phytosociological parameters of frequency, density, dominance, covering value and importance value. For the interspecific encounters it was used a multivariate analysis being used the MULVA 5 (Multivariate Analysis of Vegetation Data) program. It was identified 115 species, belonged to 79 genera and 40 botany families, 113 belong to the Magnoliophyta division, 2 belong to Pteridophyta division totaling 1417 sampled individuals. The most important families were Myrtaceae, Lauraceae, Rubiaceae, Meliaceae, Euphorbiaceae and Annonaceae. Euterpe edulis presented the highest important value due to the big individuals density, followed by Ocotea catharinensis. Concerning the sucessional categories, 4% of the species belong to the pioneer ecological groups, 13% are early secundaries, 53% are late secundaries and 30% are climax. From the total, 94% presented pollination by the animals while 6% by the wind. In relation to dispersion 81% are dispersed by the animals, 5% by the wind, and 14 % presented authocory. The multivariate analysis applied to the phytosociological structure allowed to relate the light as the main factor to the species groups formed. For the probability of interspecific encounters Ocotea puberula and Ocotea catharinensis are prominent among the others ones. The species which presented the highest probability of interspecific encounters were also the ones placed among the ones with the highest importance value in the classical phytosociological analysis. The results obtained through the present study can be used as tools define the plant species wich can be used in environmental recuperation projects in the South of Santa Catarina State coal region. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://repositorio.ufsc.br/xmlui/bitstream/handle/123456789/103027/212465.pdf;jsessionid=EB1E420F96C4028D3D2D5DA5EE58E8A4?sequence=1 |
| Alternate Webpage(s) | https://repositorio.ufsc.br/bitstream/handle/123456789/92932/278940.pdf?isAllowed=y&sequence=1 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
