Banco de sementes do solo e serapilheira acumulada em floresta restaurada

Neto, Aurino Miranda; Martins, Sebastião Venâncio; Silva, Kelly de Almeida; Gleriani, José Marinaldo

doi:10.1590/s0100-67622014000400004

Cited by 17 publications

(8 citation statements)

References 31 publications

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“…In total, 554 seedlings m -2 were found in a given area after six restoration years, whereas 1,056 seedlings m -2 were recorded after nine restoration years (Sorreano, 2002). Previous studies had also found 857.6 seedlings m -2 in a secondary forest in a kaolin mining area located in Minas Gerais State, Brazil (Martins et al, 2008): 771 seedlings m -2 in an area were subjected to 40 restoration years (Miranda Neto et al, 2014), 357 seedlings m -2 in an area were subjected to 23 restoration years (Correia & Martins, 2015) and, finally, 2,489 seedlings m -2 in an area restored for 10 years after being subjected to bauxite mining activity (Miranda Neto et al, 2017). The variation in soil seed density in different areas is associated with several factors such as the history of the area, propagule source and dispersing fauna (Franco et al, 2012).…”

Section: Introductionmentioning

confidence: 85%

Soil Seed Banks in a Forest Under Restoration and in a Reference Ecosystem in Southeastern Brazil

et al. 2019

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The current study aims to characterize the soil seed banks in a forest under restoration and in a seasonal semideciduous forest remnant, as well as to quantitatively and qualitatively compare them in order to evaluate the seed bank potential to influence the restoration process. In total, 60 samples of soil seed banks were collected in two adjacent forests (30 in a 2.18-ha forest undergoing restoration process based on the planting of seedlings belonging to different tree species, after the forest was subjected to bauxite mining activity; and 30 in a 5.30-ha preserved forest fragment). The soil seed bank of the forest undergoing restoration recorded higher density of emerged seedlings than that of the reference ecosystem. Although the shrub-tree species in the investigated forests lacked floristic similarity, the highly similar dispersal syndrome distribution and the successional category of shrub-tree species in them have indicated that both forests underwent ecological processes. Therefore, the restoration process implemented in the mined area has successfully recovered the soil seed bank after a few years.

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Section: Introductionmentioning

confidence: 85%

Soil Seed Banks in a Forest Under Restoration and in a Reference Ecosystem in Southeastern Brazil

et al. 2019

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“…Other studies, in similar environments, found a reduced stock of shrub-tree species and observed a predominance of herbaceous plants (Tres et al, 2007;Pereira et al, 2010;Miranda et al, 2014). Some authors point out that the results may be influenced by the method used -germination or direct counting -due to errors associated with seed dormancy and mortality (Pereira et al, 2010;Silva et al, 2011).…”

Section: /11mentioning

confidence: 94%

“…DISCUSSION A dominance of Cyperaceae and even herbaceous non-grass plants is commonly found in seed banks of abandoned pastures or fragmented environments (Wijdeven & Kuzee, 2000;Miranda et al, 2014). Factors that contribute to this pattern include efficient dispersion mechanisms, reduced size, dormancy, and high seed production (Guimarães et al, 2014).…”

Section: /11mentioning

confidence: 99%

Seed Bank from Abandoned Pastures in the Coastal Region of Paraná

et al. 2018

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The aim of the present study was to evaluate the seed bank of three contiguous areas: pasture abandoned for ten years, with soil amended by partial beheading for two years at horizon A (area I); pasture identical to the previous example, but with recent mobilization of the topsoil (area II); area in the early stages of regeneration (area III). Field work was conducted in Morretes-PR, in an area of evergreen rain forest. In November 2013, seed bank samples were collected from ten points per area (0.30 × 0.30 m) and at three depths (0-3 cm + litter, 3.1 to 6.0 cm and 6.1 to 9.0 cm). We obtained 25.151 seeds m -2 , distributed between 85 species. The predominant life form was herbaceous (98%), with the Cyperaceae family being the most abundant. In the seed banks of the three areas, only a few seeds from a restricted number of woody species were found, which therefore, represents a limited resource for forest restoration purposes.

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“…Tanto na vegetação secundária como no sistema agroflorestal foi observada a predominância de espécies herbáceas (59%) sobre as lianas (18%), arbóreas (14%) e arbustivas (9%). Resultados semelhantes foram encontrados em sistemas agroflorestais no Mato Grosso do Sul (MORESSI, et al 2014), floresta restaurada em Minas Gerais (MIRANDA NETO et al, 2014), em distintos estágios de regeneração natural em área de Caatinga na Paraíba (FERREIRA et al, 2014) e em áreas sob diferentes tipos de Caatingas manejadas no semiárido paraibano (RIBEIRO et al, 2017).…”

Section: Resultsunclassified

Chuva E Banco De Sementes No Solo Em Agroecossistemas Do Baixo Amazonas, Pará

Rayol¹,

Alvino-Rayol²

2018

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RESUMO A avaliação de aspectos ecológicos é importante para a compreensão da dinâmica e funcionamento dos agroecossistemas. O estudo avaliou a chuva e banco de sementes no solo de dois agroecossistemas localizados na região do Baixo Amazonas, oeste paraense. Para avaliar a chuva de sementes nas áreas de estudo, foram realizadas coletas mensais, durante 12 meses, com o uso de coletores de madeiras (11 na área de vegetação secundária e 08 no sistema agroflorestal). Os diásporos foram separados, identificados e contados. Para a avaliação do banco de sementes, foram coletadas 50 amostras de solo de 0,5 x 0,5 m (0,25 m 2) na profundidade de 0-5 cm, em cada área. O material coletado foi acondicionado em saco de papel e levado para casa de vegetação. As amostras do solo foram colocadas nas bandejas sendo irrigadas diariamente. A contagem e identificação das espécies foram realizadas em intervalos de 30 a 40 dias. Nos dois agroecossistemas analisados foram identificadas 22 espécies de propágulos distribuídas em 15 famílias. As espécies de propágulos mais abundantes no período avaliado foram Centrosema brasilianum (L.) Benth., Chamaecrista sp. e Lonchocarpus spruceanus Benth. Os bancos de sementes dos agroecossistemas estudados apresentaram baixa similaridade entre si e predomínio de espécies herbáceas e lianas. PALAVRAS-CHAVE: Serrapilheira; sistemas agroflorestais; vegetação secundária.

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Banco de sementes do solo e serapilheira acumulada em floresta restaurada

Cited by 17 publications

References 31 publications

Soil Seed Banks in a Forest Under Restoration and in a Reference Ecosystem in Southeastern Brazil

Soil Seed Banks in a Forest Under Restoration and in a Reference Ecosystem in Southeastern Brazil

Seed Bank from Abandoned Pastures in the Coastal Region of Paraná

Chuva E Banco De Sementes No Solo Em Agroecossistemas Do Baixo Amazonas, Pará

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