Variações estruturais e características edáficas em diferentes estádios sucessionais de floresta ciliar de Tabuleiro, ES

Magnago, Luiz Fernando Silva; Simonelli, Marcelo; Martins, Sebastião Venâncio; Matos, Fábio Antônio Ribeiro; Demuner, Valdir Geraldo

doi:10.1590/s0100-67622011000300008

Cited by 6 publications

(3 citation statements)

References 14 publications

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“…Características como a redução de densidade e incremento em área transversal foram observadas por Oliveira Filho et al (2007) e Magnago et al (2011), configurando um avanço de "sere" da floresta. Gentry e Terborgh (1990) As três categorias projetadas apresentaram em comum um leve aumento quanto ao número de indivíduos nas classes diamétricas superiores, propiciado pelo crescimento, que favorece o avanço de classes.…”

Section: Resultsunclassified

Ecologia E Projeção Diamétrica De Três Grupos Arbóreos Em Remanescente De Floresta Ombrófila Mista Em São Francisco De Paula, Rs

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Watzlawick

et al. 2013

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A Floresta Ombrófila Mista desempenha importante função social e ecológica na região Sul do Brasil. Embora tenha sofrido um profundo processo exploratório, resultando em sua fragmentação, apresenta elevado potencial para o manejo que, devidamente aplicado, favorece a conservação e recuperação de seus remanescentes. Com o objetivo de avaliar o incremento diamétrico e a dinâmica sucessional dessa fitofisionomia, foram empregados dados oriundos do estrato arbóreo (DAP ≥9,5 cm) de 10 parcelas permanentes de 1 ha cada, remedidas anualmente entre o período de 2000 a 2009, na Floresta Nacional de São Francisco de Paula, RS. As observações e projeções indicaram gradual redução da densidade da floresta, com destaque para a espécie Araucaria angustifolia (Bertol.) Kuntz., entretanto, observou-se tendência de aumento na densidade da família Lauraceae. O período de meia vida estimado para a floresta foi de 97 anos e, para Araucaria angustifolia, 332 anos. As estimativas ainda sugerem que, em 71 anos, as espécies de Lauraceae devem duplicar sua densidade. O crescimento da floresta foi inferior ao da família Lauraceae (= 0,175 cm/ano e = 0,179 cm/ano, respectivamente) e a Araucaria angustifolia manteve o menor crescimento (= 0,159 cm/ano). As análises indicaram um avanço sucessional, com a gradual substituição da Araucaria angustifolia por espécies com maior adaptação às condições de equilíbrio.Palavras-chave: Família Lauraceae; Floresta com Araucária; sucessão florestal. AbstractEcology and diametric projection of three arboreal groups in a Mixed Ombrophilous Forest fragment in São Francisco de RS, Brazil. The Mixed Ombrophylous Forest performs an important social and ecological function in southern Brazil. Although it has suffered a profound exploratory process, resulting in their fragmentation, it has a high potential for management that, properly applied, promotes conservation and recovery of their remains. In order to assess the increment in diameter and dynamics of phytophisiognomy, this research used data from the tree strata (DBH≥9.5 cm) of 10 permanent plots of 1 ha each remeasured annually between the period 2000 to 2009 in São Francisco de Paula National Forest, RS, Brazil. The observations and projections indicate a gradual reduction in the forest density, showing up Araucaria angustifolia (Bertol.) Kuntze species, however, for the Lauraceae species, there was a tendency of increase. The period of half-life estimated for the forest was 97 years and for Araucaria angustifolia, 332 years. The estimates also suggested that in 71 years, the Lauraceae should double its density. The forest growth was lower than that observed in the Lauraceae (=0.175 cm/year and =0.179 cm/year, respectively) and Araucaria angustifolia maintained the lowest growth (=0.159 cm/year). The analysis indicated a positive advance, with the gradual replacement of Araucaria angustifolia by other species with greater adaptation to the successional conditions. Keywords: Araucaria Forest; Lauraceae family; forest succession.

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Section: Resultsunclassified

Ecologia E Projeção Diamétrica De Três Grupos Arbóreos Em Remanescente De Floresta Ombrófila Mista Em São Francisco De Paula, Rs

Ebling

Netto

Watzlawick

et al. 2013

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“…This species can be found in the mature tree layer and the regeneration layer of lowland Atlantic rainforests (Paula et al 2009). Protium heptaphyllum occurs in forests with different successional stages but is frequently associated with later stages (Magnago et al 2011).…”

Section: Discussionmentioning

confidence: 99%

Growing at the forest edges: how natural regeneration develops under fragmentation

Gomes¹,

Dias²,

Dias³

et al. 2022

iForest

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“…Here, we hypothesized that the decrease in exchangeable Al over the years may be a result of increased pH, following a presumed increment of soil organic matter (SOM) (Magnago, Simonelli, Martins, Matos & Demuner, ; Zanini, Bergamin, Machado, Pillar & Müller, ). Although we did not assess the dynamics of SOM in this study, due to lack of information on SOM from the first sampling (1978), it is well known that it affects both pH and Al levels directly (McCauley et al., ; Rout et al., ).…”

Section: Discussionmentioning

confidence: 99%

Atlantic Forest topsoil nutrients can be resistant to disturbance and forest clearing

et al. 2019

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Human impacts can affect the soil properties through erosion and leaching, the ecosystem functions and, consequently, the capacity of a forest to regenerate. Here, we determine the effects of forest disturbance and succession on selected soil chemical properties using two different approaches, before-after-control-impact (BACI) and space-for-time (SFT) substitution, and the threatened Atlantic Forest biome as model.We assessed with BACI the long-term (37-year) effects of clear cutting on soil properties by comparing data from two topsoil surveys (1978-2017) divided into two treatments: a preserved old growth forest (control) and an adjacent forest that was experimentally cleared with full tree removal (clear-cut). We examined with SFT the relationship between stand age and soil properties using soil data from three old growth and 13 s growth forests ranging from 7 to 33 years. We found no significant differences between treatments for any soil property or significant changes in phosphorus, potassium, and calcium + magnesium over time. In contrast, pH increased and aluminum decreased in both areas. No relation was found between forest age and most of soil properties, with the exception of potassium which returned to old growth forest levels after 20 years of natural succession, and pH. BACI indicated that deforestation of old growth forest caused no significant effects on soil chemical properties after 37 years of regeneration. SFT demonstrated that soil properties did not change significantly during forest regeneration on formerly disturbed lands. Our findings indicate that natural nutrient-depleted lowland forests were overall resistant to deforestation followed by passive regeneration at landscape scale.Abstract in Portuguese is available with online material. K E Y W O R D Sbefore-after-control-impact, Brazil, deforestation, lowland rain forests, natural succession, soil properties, space-for-time substitution

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Variações estruturais e características edáficas em diferentes estádios sucessionais de floresta ciliar de Tabuleiro, ES

Cited by 6 publications

References 14 publications

Ecologia E Projeção Diamétrica De Três Grupos Arbóreos Em Remanescente De Floresta Ombrófila Mista Em São Francisco De Paula, Rs

Ecologia E Projeção Diamétrica De Três Grupos Arbóreos Em Remanescente De Floresta Ombrófila Mista Em São Francisco De Paula, Rs

Growing at the forest edges: how natural regeneration develops under fragmentation

Atlantic Forest topsoil nutrients can be resistant to disturbance and forest clearing

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