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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
22/03/2022 |
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Data da última atualização: |
27/02/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ROCHA JUNIOR, P. R. da; DONAGEMMA, G. K.; ANDRADE, F. V.; PASSOS, R. R.; BALIEIRO, F. de C. |
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Afiliação: |
PAULO ROBERTO DA ROCHA JUNIOR, BIOVERSA; GUILHERME KANGUSSU DONAGEMMA, CNPS; FELIPE VAZ ANDRADE, UFES; RENATO RIBEIRO PASSOS, UFES; FABIANO DE CARVALHO BALIEIRO, CNPS. |
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Título: |
Physical attributes and organic material in pastures of Brachiaria brizantha at degradation levels. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Bioscience Journal, v. 38, e38008, 2022. |
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DOI: |
https://doi.org/10.14393/BJ-v38n0a2022-54529 |
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Idioma: |
Inglês |
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Conteúdo: |
Pastures cover, in Brazil, around 165 million ha, most of them are at some degradation level. Recovering these pastures is essential. The objective of this study was to evaluate the sensibility of soil organic matter (SOM) and its physical attributes in pasture soil at different degradation levels (1 to 4), Capoeiras (1 and 2) and secondary Forest (Control). Samples were collected at four depths (0.00-0.05, 0.05-0.10, 0.10-0.20 and 0.20-0.40 m). We verified higher values for SOM and hydraulic conductivity (Ko) in Forest, especially in the most superficial layer (0.00-0.05). We noted low values for macroporosity in this area. In all areas under Pastures lower values for Ko were observed in the superficial layer (0.00-0.05 m) when compared to layers 0.05-0.10 and 0.10-0.20 m, which indicates that the pasture management and cattle trampling negatively affect the physical quality of the pastures. For field capacity and wilting point the average values were observed in Pasture 4 (more degraded), which caused higher values for water availability. According to the principal components analysis, except for SOM at 0.20-0.40 m, all variables studied presented correlation above 0.6. From grouping analysis, we separated 3 groups: Forest; Capoeiras 1 and Capoeira 2 and Pastures 1 to 4. |
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Palavras-Chave: |
Soil physical attributes. |
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Thesagro: |
Água do Solo; Matéria Orgânica; Qualidade; Solo. |
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Thesaurus Nal: |
Soil organic matter; Soil quality; Soil water. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/232805/1/Physical-attributes-and-organic-material-in-pastures-2022.pdf
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Marc: |
LEADER 02128naa a2200277 a 4500
001 2141118
005 2023-02-27
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.14393/BJ-v38n0a2022-54529$2DOI
100 1 $aROCHA JUNIOR, P. R. da
245 $aPhysical attributes and organic material in pastures of Brachiaria brizantha at degradation levels.$h[electronic resource]
260 $c2022
520 $aPastures cover, in Brazil, around 165 million ha, most of them are at some degradation level. Recovering these pastures is essential. The objective of this study was to evaluate the sensibility of soil organic matter (SOM) and its physical attributes in pasture soil at different degradation levels (1 to 4), Capoeiras (1 and 2) and secondary Forest (Control). Samples were collected at four depths (0.00-0.05, 0.05-0.10, 0.10-0.20 and 0.20-0.40 m). We verified higher values for SOM and hydraulic conductivity (Ko) in Forest, especially in the most superficial layer (0.00-0.05). We noted low values for macroporosity in this area. In all areas under Pastures lower values for Ko were observed in the superficial layer (0.00-0.05 m) when compared to layers 0.05-0.10 and 0.10-0.20 m, which indicates that the pasture management and cattle trampling negatively affect the physical quality of the pastures. For field capacity and wilting point the average values were observed in Pasture 4 (more degraded), which caused higher values for water availability. According to the principal components analysis, except for SOM at 0.20-0.40 m, all variables studied presented correlation above 0.6. From grouping analysis, we separated 3 groups: Forest; Capoeiras 1 and Capoeira 2 and Pastures 1 to 4.
650 $aSoil organic matter
650 $aSoil quality
650 $aSoil water
650 $aÁgua do Solo
650 $aMatéria Orgânica
650 $aQualidade
650 $aSolo
653 $aSoil physical attributes
700 1 $aDONAGEMMA, G. K.
700 1 $aANDRADE, F. V.
700 1 $aPASSOS, R. R.
700 1 $aBALIEIRO, F. de C.
773 $tBioscience Journal$gv. 38, e38008, 2022.
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