Estudo da estrutura da regeneração natural sob a influência do índice de área foliar e da luminosidade em um fragmento de Floresta Ombrófila Mista, Irati – PR

• Autor(a) principal: Carvalho Júnior, Reinaldo Senra de
• Data de Publicação: 2018
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações do UNICENTRO
• Texto Completo: http://tede.unicentro.br:8080/jspui/handle/jspui/1369
• topic: Regeneração Natural; IAF; Lux; FOM; MNT; Natural regeneration; LAI; Lux; MOF; DTM; CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL; RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL::MANEJO FLORESTAL

The Mixed Ombrophilous Forest (MOF), typology that characterizes part of the vegetation of the three southern states of Brazil, is in the form of sparse fragments and with each passing day its area decreases. In a scenario marked by destruction, caused by deforestation, reconstruction is necessary, through preservation, restoration and recovery techniques. Over the years the MOF has been the target of many studies, yet it lacks even more specific studies, since the nature of this typology is complex. Factors such as luminosity, soil, water and the interaction between plants make each region unique. This work had as a study area a fragment of MOF and it was aimed to analyze at first, the Leaf Area Index (LAI), the Luminosity (klx) and the interaction between them, using Digital Terrain Model (DTM), where models with four class for each variable were elaborated. Correlation calculations were performed for Spearman and Pearson between the variables using the LAI as a predictor and the klx as dependent and in both correlations the results were excellent. In a second moment the overlapping of the generated models was carried out and from this interaction three subunits of radius equal to 1 meter per class were selected for the accomplishment of a floristic survey of the vegetation in a regenerative character. 198 individuals were found distributed in 14 families and 21 species. In classes 1st, 3rd and 4th were found some exclusive individuals that only occurred in these classes, such as Araucaria angustifolia that only occurred in the 1st class, Solanum cf. granulosoleprosum that only occurred in the 3rd class and Zanthoxylum rhoifolium that only occurred in the 4th class.