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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
31/01/2017 |
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Data da última atualização: |
31/01/2017 |
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Autoria: |
WATANABE, R.; FIGUEIREDO, G. C.; SILVA, A. P. da; NEVES, J. C. L.; OLIVEIRA, T. S. de. |
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Afiliação: |
Rafaela Watanabe; Getulio Coutinho Figueiredo; Alvaro Pires da Silva; Júlio César Lima Neves; Teógenes Senna de Oliveira. |
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Título: |
Physical quality of a Luvisol under agroforestry systems in a semi-arid region, Brazil. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Soil Research, v. 54, N. 4, p. 430-439, 2016. |
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DOI: |
http://dx.doi.org/10.1071/SR15179 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Agroforestry systems provide many environmental benefits in semi-arid regions; however, trampling by cattle, and agricultural practices, can degrade physical quality of the soil. The aim of this study was to evaluate the degree of compaction and the compression behaviour of a Luvisol after 14 years under agro-silvopastoral (ASP) and silvopastoral systems (SILV), compared with a soil under natural vegetation (NV). We evaluated the degree of soil compactness, compaction index, pre-consolidation pressure, maximum bulk density, critical water content and the stocks of total organic carbon (C), organic matter (OM), C in light organic matter (LOM), and nitrogen (N) in LOM. The results indicated that agroforestry systems change the compressive behaviour of the soil, increasing maximum bulk density (P < 0.05) and reducing critical water content (P < 0.05). Despite the increases in maximum bulk density, changes induced by agroforestry system did not affect the pore space, as shown by similar values for degree of compactness (P > 0.05) under ASP, SILV and NV. This suggests a change in the quality of OM, as evidenced by the lower values for stocks of N in LOM (P < 0.10) and total organic C (P < 0.05) under ASP and SILV, whereas pre-consolidation pressure was unaffected (P > 0.05). After 14 years, the degree of compactness and load-bearing capacity of the soils under ASP and SILV had not increased, being suitable for plant growth. After 14 years of agroforestry land use (in silvopastoral and agro-silvopastoral systems), compression behaviour of the soil was stable, with no increases in the degree of compactness or load-bearing capacity, indicating suitability for plant growth. MenosAbstract: Agroforestry systems provide many environmental benefits in semi-arid regions; however, trampling by cattle, and agricultural practices, can degrade physical quality of the soil. The aim of this study was to evaluate the degree of compaction and the compression behaviour of a Luvisol after 14 years under agro-silvopastoral (ASP) and silvopastoral systems (SILV), compared with a soil under natural vegetation (NV). We evaluated the degree of soil compactness, compaction index, pre-consolidation pressure, maximum bulk density, critical water content and the stocks of total organic carbon (C), organic matter (OM), C in light organic matter (LOM), and nitrogen (N) in LOM. The results indicated that agroforestry systems change the compressive behaviour of the soil, increasing maximum bulk density (P < 0.05) and reducing critical water content (P < 0.05). Despite the increases in maximum bulk density, changes induced by agroforestry system did not affect the pore space, as shown by similar values for degree of compactness (P > 0.05) under ASP, SILV and NV. This suggests a change in the quality of OM, as evidenced by the lower values for stocks of N in LOM (P < 0.10) and total organic C (P < 0.05) under ASP and SILV, whereas pre-consolidation pressure was unaffected (P > 0.05). After 14 years, the degree of compactness and load-bearing capacity of the soils under ASP and SILV had not increased, being suitable for plant growth. After 14 years of agroforestry land use (in si... Mostrar Tudo |
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Palavras-Chave: |
Agrosilvopastoral systems; Brasil; Capacidade de suporte de carga; Carga animal; Load-bearing capacity; Pisoteio animal; Semiárido; Sistema agroflorestal; Sistema agrosilvopastoril; Sistema silvopastoril; Soil chemicophysical properties; Soil physical quality; Trampling. |
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Thesagro: |
Compactação do solo; Crescimento; Pastejo; Planta; Qualidade; Solo. |
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Thesaurus Nal: |
Brazil; plant growth; Semiarid soils; Silvopastoral systems; Soil compaction. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 03062naa a2200469 a 4500
001 2062245
005 2017-01-31
008 2016 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1071/SR15179$2DOI
100 1 $aWATANABE, R.
245 $aPhysical quality of a Luvisol under agroforestry systems in a semi-arid region, Brazil.$h[electronic resource]
260 $c2016
520 $aAbstract: Agroforestry systems provide many environmental benefits in semi-arid regions; however, trampling by cattle, and agricultural practices, can degrade physical quality of the soil. The aim of this study was to evaluate the degree of compaction and the compression behaviour of a Luvisol after 14 years under agro-silvopastoral (ASP) and silvopastoral systems (SILV), compared with a soil under natural vegetation (NV). We evaluated the degree of soil compactness, compaction index, pre-consolidation pressure, maximum bulk density, critical water content and the stocks of total organic carbon (C), organic matter (OM), C in light organic matter (LOM), and nitrogen (N) in LOM. The results indicated that agroforestry systems change the compressive behaviour of the soil, increasing maximum bulk density (P < 0.05) and reducing critical water content (P < 0.05). Despite the increases in maximum bulk density, changes induced by agroforestry system did not affect the pore space, as shown by similar values for degree of compactness (P > 0.05) under ASP, SILV and NV. This suggests a change in the quality of OM, as evidenced by the lower values for stocks of N in LOM (P < 0.10) and total organic C (P < 0.05) under ASP and SILV, whereas pre-consolidation pressure was unaffected (P > 0.05). After 14 years, the degree of compactness and load-bearing capacity of the soils under ASP and SILV had not increased, being suitable for plant growth. After 14 years of agroforestry land use (in silvopastoral and agro-silvopastoral systems), compression behaviour of the soil was stable, with no increases in the degree of compactness or load-bearing capacity, indicating suitability for plant growth.
650 $aBrazil
650 $aplant growth
650 $aSemiarid soils
650 $aSilvopastoral systems
650 $aSoil compaction
650 $aCompactação do solo
650 $aCrescimento
650 $aPastejo
650 $aPlanta
650 $aQualidade
650 $aSolo
653 $aAgrosilvopastoral systems
653 $aBrasil
653 $aCapacidade de suporte de carga
653 $aCarga animal
653 $aLoad-bearing capacity
653 $aPisoteio animal
653 $aSemiárido
653 $aSistema agroflorestal
653 $aSistema agrosilvopastoril
653 $aSistema silvopastoril
653 $aSoil chemicophysical properties
653 $aSoil physical quality
653 $aTrampling
700 1 $aFIGUEIREDO, G. C.
700 1 $aSILVA, A. P. da
700 1 $aNEVES, J. C. L.
700 1 $aOLIVEIRA, T. S. de
773 $tSoil Research$gv. 54, N. 4, p. 430-439, 2016.
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Embrapa Caprinos e Ovinos (CNPC) |
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| 4. |  | DONAGEMMA, G. K.; RUIZ, H. A.; ALVAREZ V., V. H.; FERREIRA, P. A.; CANTARUTTI, R. B.; SILVA, A. T.; FIGUEIREDO, G. C. Índice de uniformidade de distribuição do amônio, nitrato, potássio e fósforo, em Latossolos sob condições de fertigação. Revista Brasileira de Engenharia Agrícola e Ambiental, v. 14, n. 6, p. 575-581, 2010.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Solos. |
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| 5. | | DONAGEMMA, G. K.; RUIZ, H. A.; ALVAREZ V., V. H.; FERREIRA, P. A.; CANTARUTTI, R. B.; SILVA, A. T. da; FIGUEIREDO, G. C. Distribuição do amônio, nitrato, potássio e fósforo em colunas de latossolos fertirrigadas. Revista Brasileira de Ciência do Solo, v. 32, n. 6, p. 2493-2504, dez. 2008.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
| Biblioteca(s): Embrapa Solos. |
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| Registros recuperados : 5 | |
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