Transposição do banco de sementes do solo como metodologia de restauração florestal de pastagem abandonada em Viçosa, MG

Neto, Aurino Miranda; Kunz, Sustanis Horn; Martins, Sebastião Venâncio; Silva, Kelly de Almeida; Silva, Deideluci Aparecida da

doi:10.1590/s0100-67622010000600009

Cited by 23 publications

(23 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The large number of pioneer seeds in the seed bank is due to large seed production, to efficient dispersion mechanisms and to the ability of forming a persistent bank due to long seed viability (Dalling, 2002). Some studies in seasonal semideciduous forest (Martins, 2009b;Miranda Neto et al, 2010;Arzolla, 2011) also showed the same results, evidencing the contribution of the pioneer species in the forest restoration. The greater proportion of pioneers demonstrates that in a few years the vegetation may be replaced by other species at more advanced stages of succession (Rodrigues et al, 2010) since the area dominated by Pteridium in the Caparaó National Park is surrounded by secondary forest in an advanced stage of regeneration, being able to supply propagules of later species.…”

Section: Discussionmentioning

confidence: 58%

“…Miranda Neto et al (2010), when studying the transposition of the seed bank of forest (early and mature) to an abandoned pasture in Reserva Mata do Paraíso also verified that the Fabaceae family was one of those that presented the highest number of individuals. This family presents several species that form symbiosis with atmospheric nitrogen fixing bacteria (N 2 ), being important in the process of restoration of areas with low fertility soils, such as those found in the areas dominated by P. aquilinum (Silva and Silva-Matos, 2006).…”

Section: Discussionmentioning

confidence: 85%

“…Studies using nucleation techniques in abandoned pastures (Miranda Neto et al, 2010) and in mined areas (Cardozo, 2006) were found. However, no study was found using these techniques in areas dominated by P. aquilinum, so this is a pioneering study.…”

Section: Discussionmentioning

confidence: 99%

“…Seed bank transposition has been widely studied and recommended to form vegetation nuclei in abandoned pastures (Miranda Neto et al, 2010) and in areas degraded by mining (Martins et al, 2008). However, the application of these and other methodologies that promote the formation of vegetation nuclei in an area dominated by P. aquilinum is still practically non-existent.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

ECOLOGICAL RESTORATION IN AREA DOMINATED BY Pteridium aquilinum (L.) Kuhn IN CAPARAÓ NATIONAL PARK, MG

Brandão

Martins

Brandão³

et al. 2017

Rev. Árvore

Self Cite

View full text Add to dashboard Cite

-The goal of this study was to restore an area dominated by P. aquilinum in the National Park of Caparaó, by nucleation techniques. In an area covered by P. aquilinum, 60 nuclei or gaps of 2 x 2 m were cleared, i.e., 10 nuclei per treatment. In these open areas, all P. aquilinum cover was removed down to the soil. In the center of each gap was delimited one parcel of 1 x 1 m, in which the treatments were applied: T1-liming, T2-seed bank and litter transposition, T3-direct-seeding, T4-liming + seed bank and litter transposition, T5-liming + direct-seeding, T6-control. The experiment was arranged in a completely randomized design with 10 replications. In each nucleation plot, after one year, all arbustive-arboreous species were recorded, by measuring plant height and diameter at ground level. The plants were classified according to the succession class and dispersion type. One year after the installation of the nucleation experiment, 331 individuals of 19 species, 12 genera and 10 botanical families were recorded. Pioneer plants were the predominant ecological group, and the prevailing dispersion type was zoochoric. The richest families were Solanaceae and Euphorbiaceae. Solanaceae was represented by the highest number of individuals (56.2%), followed by Fabaceae (10%). The genus Solanum had the highest richness and abundance. The applied nucleation techniques triggered the succession process in the area invaded by P. aquilinum. Treatments with seed banks were the most appropriate to facilitate forest regeneration in this area.Keywords: Inhibition; Fern; Nucleation.RESTAURAÇÃO ECOLÓGICA EM ÁREA DOMINADA POR Pteridium aquilinum (L.) Kuhn NO PARQUE NACIONAL DO CAPARAÓ, MG RESUMO -O estudo objetivou aplicar técnicas de nucleação para restauração de uma área dominada por P. aquilinum no Parque do Caparaó. Na área ocupada por P. aquilinum, abriram-se sessenta núcleos de 2 x 2 m, sendo dez núcleos para cada tratamento avaliado. Nestas áreas abertas, toda a cobertura de P. aquilinum foi removida até atingir o solo. No centro de cada clareira foi delimitado uma parcela de 1 x 1 m, em que foram aplicados os tratamentos: T1-calagem, T2-Transposição do banco de sementes e serapilheira, T3-semeadura direta, T4-calagem + transposição do banco de sementes e serapilheira, T5-calagem + semeadura direta, T6-Testemunha. Adotou-se o delineamento inteiramente casualizado com 10 repetições por tratamento. Em cada parcela da nucleação, após um ano, registraram-se todos os indivíduos arbustivo-arbóreos, medidos em altura e diâmetro ao nível do solo.

show abstract

Section: Discussionmentioning

confidence: 58%

Section: Discussionmentioning

confidence: 85%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

ECOLOGICAL RESTORATION IN AREA DOMINATED BY Pteridium aquilinum (L.) Kuhn IN CAPARAÓ NATIONAL PARK, MG

Brandão

Martins

Brandão³

et al. 2017

Rev. Árvore

Self Cite

View full text Add to dashboard Cite

show abstract

“…A densidade e a composição florística do banco de sementes também variam com os estágios sucessionais da Floresta Tropical, com a redução da densidade total e aumento na representatividade de sementes de espécies arbóreas lenhosas nos estágios mais avançados da vegetação (Saulei e Swaine 1988), entre microsítios dentro da mesma área (Rajan et al 1995;Costa, 1999;Miranda Neto et al 2010), com a produtividade dos ecossistemas localizados em diferentes altitudes e estações climáticas distintas influenciando os ciclos fenológicos das espécies (Williams-Linera 1993;Jordano 2000) e ainda pela ocorrência de eventos catastróficos como incêndios (Smith et al 2000) e inundações (James et al 2007).…”

Section: Introductionunclassified

Variações espaço-temporais no estoque de sementes do solo na floresta amazônica

2013

View full text Add to dashboard Cite

A dispersão eficiente, a longevidade e a capacidade das sementes de permanecer em estado latente a espera de condições adequadas de germinação no banco de sementes do solo da floresta garantem a presença de espécies arbóreas pioneiras nas áreas perturbadas. As variações estacionais e espaciais na densidade e na composição florística do banco de sementes em Florestas Tropicais Úmidas são assuntos ainda pouco compreendidos. Este trabalho verificou a existência de modificações espaço-temporais do banco de sementes presente em áreas de Floresta Tropical úmida localizadas próximas a Manaus, AM. Em cada uma das seis áreas estudadas, foram coletadas 40 amostras circulares de solo superficial (10 cm de diâmetro e 2 cm de profundidade) ao acaso. Essas amostras foram coletadas a cada dois meses, entre agosto/2004 e junho/2005,. As amostras de solo foram distribuídas em bandejas em casa de vegetação e a emergência das sementes presentes no solo foi acompanhada por 4 meses. Houve uma redução significativa (H: 14,09, p < 0,05) na densidade média de sementes no solo em junho (início da estação seca) em relação a fevereiro (meio da estação chuvosa). Houve também diferença significativa (H: 188,72, p < 0,05) na densidade média de sementes do solo presente nas diferentes áreas amostradas. Assim como para outras áreas de florestas tropicais, o banco de sementes permanente da floresta foi dominado por espécies pioneiras, principalmente da família Melastomataceae, enquanto as espécies típicas da Floresta Tropical madura foram raras no solo florestal. PALAVRAS-CHAVE: banco de sementes, Amazônia, Reserva Florestal Adolpho Ducke. Space-time variations in soil seed stock in an amazon rainforest ABSTRACTThe dispersion efficiency, longevity and the ability of seeds to remain latent waiting for suitable conditions for germination in the forest soil seed bank ensures the presence of pioneer tree species in disturbed areas. The seasonal and spatial variations in the density and floristic composition of the seed bank in tropical rainforests is a subject still little understood. This work verified the existence of spatio-temporal changes of the seed bank present in areas of humid tropical rain forest located near Manaus, Amazonas. In each of the six study areas, 40 circular samples of topsoil (10 cm in diameter and 2 cm deep) were randomly collected every two months, from August 2004 to June/2005. Inside a greenhouse, the collected soil samples were distributed in trays and the emergence of seeds present in the soil was accompanied during four months. There was a significant reduction (H: 14.09112, p <0.05) in the mean density of seeds presents in the soil in June (early dry season) compared to February (middle of the rainy season). There was also a significant difference (H: 188.7245, p <0.05) in the mean density of soil seeds present in the different samples areas. Similar to other tropical forest areas, the permanent seed bank in the forest was dominated by pioneer species, mainly from the family Melastomataceae, while typical tropical for...

show abstract

Brushwood and artificial perch did not facilitate forest regeneration in Urochloa spp. grassland

et al. 2020

View full text Add to dashboard Cite

In Brazil, many pastures are formed by grasses of the genus Urochloa, which have recognized inhibitory effects on regeneration of native vegetation. Using facilitation practices for natural regeneration of these areas aims to promote forest restoration by creating safe sites in the seedbed. This study aimed to assess the efficiency of brushwood and artificial perch as techniques to improve native plant establishment in an area covered by the inhibitory grasses of Urochloa. Field work was conducted between February 2014 and February 2016, in an area of lowland Atlantic rainforest in Morretes-PR. A set of 12 8 m × 5 m plots were established, corresponding to three treatments and four replicates, organized according to randomized block and split-plot design. The treatments were: brushwood, brushwood + artificial perch and control treatment. Evaluations were conducted at 4, 8, 12, 18 and 24 months after the experiment was installed by counting and identifying regenerating woody species and visually estimating cover percentage of herbs and subshrubs species. Brushwood treatments with and without perch initially reduced Urochloa grasses; however, over time the initial effects ceased due to the rapid growth of grass at plot edges. Likewise, perches in this treatment did not increase native/woody species. We concluded that the ecological restoration of Urochloa pastures requires additional measures to control grasses and increase local resilience in order to improve the seedbed.

show abstract

Transposição do banco de sementes do solo como metodologia de restauração florestal de pastagem abandonada em Viçosa, MG

Cited by 23 publications

References 20 publications

ECOLOGICAL RESTORATION IN AREA DOMINATED BY Pteridium aquilinum (L.) Kuhn IN CAPARAÓ NATIONAL PARK, MG

ECOLOGICAL RESTORATION IN AREA DOMINATED BY Pteridium aquilinum (L.) Kuhn IN CAPARAÓ NATIONAL PARK, MG

Variações espaço-temporais no estoque de sementes do solo na floresta amazônica

Brushwood and artificial perch did not facilitate forest regeneration in Urochloa spp. grassland

Contact Info

Product

Resources

About