Native species indicated for degraded area recovery in Western Paraná, Brazil

Abstract

-Colonization in the State of Paraná has culminated in the devastation of large forest areas in the entire State. Degraded area recovery programs have emphasized the utilization of native species, but often the species indicated for local reforestation areas are unknown, as those areas are little known floristically. This study aimed to survey native species indicated for reforestation of areas in the Western region of the State of Paraná, classify those species as pioneer, secondary, or climactic, and indicate places of occurrence of matrices where seeds of those species could be collected. Bibliographic surveys in the specialized literature and research in the Herbarium Museu Botânico Municipal de Curitiba (MBM) and Herbarium of Universidade Estadual do Oeste do Paraná (UNOP) were conducted to identify potential species for degraded area recovery in the study of Western region of Paraná. In all, 115 species were selected, of which 22 are pioneer, 73 are secondary, and 20 are climactic. The bibliographic surveys suggests that pioneer species are the most indicated for the initial processes in the degraded areas recovery, while secondary and climactic species play a major role in area enrichment.Keywords: Reforestation, Pioneer species, Secondary species and climactic species. ESPÉCIES NATIVAS INDICADAS PARA RECUPERAÇÃO DE ÁREAS DEGRADADAS NO OESTE DO PARANÁ RESUMO -A colonização no Estado do Paraná culminou na devastação de grandes áreas florestadas em todo o Estado. Os programas de restauração de áreas degradadas enfatizam a utilização de espécies nativas, mas, muitas vezes, não se conhecem as espécies indicadas para reflorestamentos locais

Phytosociological study of a riverine forest remnant from Taquari river, State of Rio Grande do Sul, Brazil

“…Luehea divaricata was the species with the highest IVI in the forest remnant, however its presence was higher in plots that were further from the riverbank. Its main habitats are riparian forests or hillsides, and this species is important for degraded areas recovery, as it tolerates short or long-term periodic flooding, low temperatures and has quick growth, besides tolerating shading when young (Gris et al 2012). Furthermore, the fragment was mainly represented by Lonchocarpus nitidus, Myrcia palustris, Terminalia australis, Gymnanthes klotzschiana, Matayba elaegnoides, Pouteria salicifolia, Calyptranthes concinna and Campomanesia xanthocarpa, which showed the highest values of IVI and are characteristic species of riparian forests.…”

Survival and growth of tree seedlings as a function of seed size in a gallery forest under restoration

“…Pioneering species are normally indicated in ecological restoration projects because they are light-dependent, have high growth rates, promote fast covering of the soil and influence the microclimate, favouring the establishment of species from later successional stages, which have larger seeds (Carpanezzi & Carpanezzi 2006;Gris et al 2012;Klippel et al 2015). However, our results suggested that the higher initial relative growth rate of smaller seed species was observed only until the end of the first year after planting, while the larger seeds we recorded a higher probability of survival, which can extend for at least two years in the field increasing the probability of establishment of plant individuals.…”

Consórcio De Espécies Nativas Da Mata Atlântica Com Milho E Feijão Para Revegetação De Mata Ciliar Na Região Noroeste Fluminense

“…Segundo Gris et al (2012), espécies pioneiras apresentam maior rusticidade, crescimento e robustez, características que podem favorecer o seu estabelecimento em áreas degradadas, quando comparadas com espécies de estágios mais avançados da sucessão ecológica. Não foi observada diferença no estabelecimento e no crescimento em diâmetro e altura entre os grupos ecológicos das pioneiras e não pioneiras utilizadas neste estudo, nos dois sistemas de manejos (plantio convencional e Taungya), entretanto a mais rápida cobertura da área em função do maior diâmetro de copa foi observada nas pioneiras em relação ao grupo das espécies tardias.…”