| Registro completo |
| Provedor de dados: |
PAB
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| País: |
Brazil
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| Título: |
Use of topsoil for restoration of a degraded pasture área
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| Autores: |
Amaral,Luise Andrade
Pereira,Israel Marinho
Silva,Michele Aparecida Pereira da
Oliveira,Marcio Leles Romarco de
Machado,Evandro Luiz Mendonça
Laia,Marcelo Luiz de
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| Data: |
2017-11-01
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| Ano: |
2017
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| Palavras-chave: |
Ecosystem restoration
Fertility
Natural regeneration
Topsoil application
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| Resumo: |
Abstract: The objective of this work was to evaluate the influence of topsoil thickness, shading and origin when performing environmental restoration in a degraded pasture area. The experiment was conducted in a randomized block design with a factorial (3 x 2 x 2) + 2 layout. Treatments consisted of combinations of topsoil origins (forest at early or middle regeneration stages), topsoil thicknesses (10, 20, or 30-cm superficial soil layer), and presence or absence of 70% shading; with two additional control treatments. Surveys on topsoil physical-chemical attributes and flora and soil coverage were conducted. Good correlation was observed between bulk density and total porosity. Vegetation comprised a total of 2,932 individuals of herbaceous, shrub and subshrub plants; 33 species in 11 families and 1 morphospecies were identified. A floristic survey of the tree stratum revealed 235 individuals belonging to 21 species and 14 families, as well as 2 unidentified species. The best natural regeneration index is observed in the 20-cm topsoil layer, where shading exerts a positive influence on the humidity and natural regeneration of the seed bank. Topsoil from middle-stage forest is the most suitable for restoration of degraded pasture areas.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001101080
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| Editor: |
Embrapa Secretaria de Pesquisa e Desenvolvimento
Pesquisa Agropecuária Brasileira
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| Relação: |
10.1590/s0100-204x2017001100014
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| Formato: |
text/html
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| Fonte: |
Pesquisa Agropecuária Brasileira v.52 n.11 2017
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| Direitos: |
info:eu-repo/semantics/openAccess
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