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Floristic evolution in an agroforestry system cultivation in Southern Brazil Anais da ABC (AABC)
SILVA,LUÍS C.R.; MACHADO,SEBASTIÃO A.; GALVÃO,FRANKLIN; FIGUEIREDO FILHO,AFONSO.
ABSTRACT Bracatinga (Mimosa scabrella Bentham) is an important pioneer tree species in Ombrophylous Mixed Forest of Brazil and is widely used as an energy source. In traditional agroforestry systems, regeneration is induced by fire, then pure and dense stands known as bracatinga stands (bracatingais) are formed. In the first year, annual crops are intercalated with the seedlings. At that time the seedlings are thinned, then the stands remain at a fallow period and cut at seven years old. The species is very important mainly for small landowners. We studied the understory species that occur naturally during the succession over several years in order to manage them rationally in the future and maintain the natural vegetation over time. Three to 20 year-old...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bracatinga stands; Diversity Index; Ecological succession; Evenness Index.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000300973
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Dispersion and aggregation patterns of tree species in Araucaria Forest, Southern Brazil Anais da ABC (AABC)
MAÇANEIRO,JOÃO PAULO DE; GASPER,ANDRÉ LUÍS DE; GALVÃO,FRANKLIN; SCHORN,LAURI A..
Abstract Studies about dispersal syndromes and spatial distribution can provide information about species ecology. However, few studies analyze these ecological patterns in different vegetation layers. In this work, we verified the relationship between the dispersion syndromes and the spatial distribution in different layers in Araucaria Forest. We sampled 180 plots with size and inclusion criteria that changed according to the vegetative layer. We sampled 15,545 individuals in 103 tree species. We found significant differences between the number of species in the dispersion syndromes (χ2 = 11.52; P ≤ 0.05) and spatial distribution patterns (χ2 = 10.94; P ≤ 0.05), being zoochoric and tends to clustering the most predominant. We also found a significant...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Araucaria forest; Seed dispersal; Spatial distribution; Layers analysis.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000502397
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Vascular epiphyte biomass in a South Brazilian fragment of Atlantic Forest Anais da ABC (AABC)
PETEAN,MARISE P.; MARCON,AMANDA K.; LIEBSCH,DIETER; GALVÃO,FRANKLIN; KERSTEN,RODRIGO A..
Abstract The present study aimed at sampling the biomass of vascular epiphytes within a protected area in South Brazilian Atlantic Forest. All tree specimens with diameter at breast height equal or greater than 4.8 cm were measured and divided into classes. In each class, 10% of tree specimens were randomly selected for epiphytic biomass measuring. Furthermore, we divided the phorophytes into five tree parts to analyze epiphytic biomass. We generated mathematical models to estimate epiphytic biomass in similar forest areas. We analyzed 55 phorophytes and found an estimated epiphytic biomass of 5.3 Mg/ha. Epiphytic biomass ranged from 0.02 to 135 kg and the lower values were found on small-sized phorophytes. Higher values of epiphytic biomass were found on...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biomass estimation; Carbon storage; Crown humus; Dead organic matter; Epiphytes; Epiphytic biomass.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703717
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