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|Título:||FLORISTIC AND STRUCTURAL VARIATIONS OF A GULLY AT ITUMIRIM, MINAS GERAIS|
|Título(s) alternativo(s):||Variações florísticas e estruturais de uma voçoroca em Itumirim, Minas Gerais|
|Autor:||Loschi, Ricardo Ayres|
Pereira, José Aldo Alves
Machado, Evandro Luiz Mendonça
Santos, Rubens Manoel dos
|Palavras-chave:||Degraded areas, natural regeneration, needle method, phytosociology, floristics|
|Outras Identificações :||http://www.cerne.ufla.br/site/index.php/CERNE/article/view/118|
|Descrição:||This work aimed at knowing and evaluating the florisitc composition, the strucuture and the diversity of the regenerating species in a gully at Itumirim, MG. The gully possesses an area of 0.9 ha and was subdivided into three sectors named as arms “A”; “B” and “C”. For the structural survey of the vegetation the needle method was employed, i. e. , 574 points distributed systematically across the three arms were sampled. Each spot was stratified on the terrain as related to a topographic gradient. The indicator species analysis (ISA) was used to give statistical support to the standards found. A florisitic survey was also conducted with the purpose of recording all the species of shrub-tree life form ocorring in the gully. Through the strucutural survey, it was found that the species of the group of “grass-like” and “ferns” dominated widely all the sectors. The indicator species analysis performed for each of the arms pointed out that Ludwigia elegans (Cambess.) H. Hara presents high fidelity, and, therefore, can be regarded as an indicator of the sector slack for arm “A” (p = 0.002).the group of species which make up the guild “ferns” was considered an indicator for the upper third of arm “C” (p = 0.038). In the floristic survey concerning the species of shrub-tree life form, 73 species were recorded in the three arms arms 73, distributed into 63 genera and 33 botanic families. The families with highest diversities of species were Fabaceae, Asteraceae, Melastomataceae and Myrtaceae, standing for 46.6% of the total of recorded species.|
|Aparece nas coleções:||CERNE|
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