| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Cerrados. |
|
Data corrente: |
15/07/1999 |
|
Data da última atualização: |
15/07/1999 |
|
Autoria: |
NEUFELDT, H.; SCHNEIDER, M. de O.; ZECH, W. |
|
Título: |
Oxisol development along a compound catena of the Araguari river, Central Brazil. |
|
Ano de publicação: |
1999 |
|
Fonte/Imprenta: |
In: THOMAS, R.; AYARZA, M.A., ed. Sustainable land management for the oxisols of the Latin American savannas: dynamics of soil organic matter and indicators of soil quality. Cali: CIAT, 1999. |
|
Páginas: |
p.10-21. |
|
Idioma: |
Inglês |
|
Conteúdo: |
Several Oxisols, containing different parental materials, were studied along a compound catena of the Araguari River, central Brazil. Their development, age, and genetic features were analyzed by morphological, chemical, and mineralogical methods. Results indicated continuously decreasing weathering from tableland (also known as chapada) to valley floor. Soils on the chapada probably developed during middle and upper Tertiary, and are considered relict. Their different types of quartz sand clearly show that they derive from preweathered sediments of distinct locations, suggesting a polygenetic origin that may reach as far back as the Cretaceous. Soils on the pediment, inseted into the slope toward the Araguari River, developed in situ and may have been formed at the beginning of Pleistocene but still indicate ongoing ferralitization. A ferralitized paleosol that developed in situ near the river's present base level is apparently from late Pleistocene. Recent pedological processes are characterized by strong leaching and hillwash. |
|
Palavras-Chave: |
Brasil; Regiao Central; Rio Araguari. |
|
Thesagro: |
Cerrado; Oxisol; Solo. |
|
Thesaurus Nal: |
Brazil; Ferralsols; soil. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 01848naa a2200265 a 4500
001 1545395
005 1999-07-15
008 1999 bl uuuu u00u1 u #d
100 1 $aNEUFELDT, H.
245 $aOxisol development along a compound catena of the Araguari river, Central Brazil.
260 $c1999
300 $ap.10-21.
520 $aSeveral Oxisols, containing different parental materials, were studied along a compound catena of the Araguari River, central Brazil. Their development, age, and genetic features were analyzed by morphological, chemical, and mineralogical methods. Results indicated continuously decreasing weathering from tableland (also known as chapada) to valley floor. Soils on the chapada probably developed during middle and upper Tertiary, and are considered relict. Their different types of quartz sand clearly show that they derive from preweathered sediments of distinct locations, suggesting a polygenetic origin that may reach as far back as the Cretaceous. Soils on the pediment, inseted into the slope toward the Araguari River, developed in situ and may have been formed at the beginning of Pleistocene but still indicate ongoing ferralitization. A ferralitized paleosol that developed in situ near the river's present base level is apparently from late Pleistocene. Recent pedological processes are characterized by strong leaching and hillwash.
650 $aBrazil
650 $aFerralsols
650 $asoil
650 $aCerrado
650 $aOxisol
650 $aSolo
653 $aBrasil
653 $aRegiao Central
653 $aRio Araguari
700 1 $aSCHNEIDER, M. de O.
700 1 $aZECH, W.
773 $tIn: THOMAS, R.; AYARZA, M.A., ed. Sustainable land management for the oxisols of the Latin American savannas: dynamics of soil organic matter and indicators of soil quality. Cali: CIAT, 1999.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Cerrados (CPAC) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 12 | |
| 7. |  | RENZ, T. E.; NEUFELDT, H.; AYARZA, M. A.; RESCK, D. V. S.; ZECH, W. Microbial biomass, microbial activity, and carbon pools under different land-use systems in the Brazilian cerrados. In: THOMAS, R.; AYARZA, M.A., ed. Sustainable land management for the oxisols of the Latin American savannas: dynamics of soil organic matter and indicators of soil quality. Cali: CIAT, 1999. p.187-197.| Biblioteca(s): Embrapa Cerrados. |
|   |
| 9. | | FUHRMANN, S.; NEUFELDT, H.; WESTERHOF, R.; AYARZA, M. A.; SILVA, J. E. da; ZECH, W. Soil organic carbon, carbohydrates, amino sugars, and potentially mineralizable nitrogen under different land-use systems in oxisols of the Brazilian cerrados. In: THOMAS, R.; AYARZA, M.A., ed. Sustainable land management for the oxisols of the Latin American savannas: dynamics of soil organic matter and indicators of soil quality. Cali: CIAT, 1999. p.110-122.| Biblioteca(s): Embrapa Cerrados. |
| |
| 11. | | AYARZA, M. A.; THOMAS, R.; ZECH, W.; NEUFELDT, H.; WESTRHOF, R. LILIENFEIN, J.; FREIBAUER, A.; SILVA, J. E. da. Soil indicators of sustainable agropastoral systems. In: CONGRESSO BRASILEIRO DE CIENCIA DO SOLO, 27., 1999, Brasilia, DF. [Ciencia do solo e qualidade de vida: anais]. [Planaltina: Embrapa Cerrados, 1999]. Sessao de posteres 1. Resumo.| Biblioteca(s): Embrapa Cerrados. |
| |
| 12. | | LILIENFEIN, J.; FREIBAUER, A.; NEUFELDT, H.; WESTERHOF, R.; AYARZA, M. A.; SILVA, J. E. da; RESCK, D. V. S.; ZECH, W. Influence of land-use on the distribution of water stable aggregates and P status of sandy and clayey cerrado oxisols, Brazil. In: SIMPOSIO SOBRE O CERRADO, 8.; INTERNATIONAL SYMPOSIUM ON TROPICAL SAVANNAS, 1., 1996, Brasilia, DF. Biodiversidade e producao sustentavel de alimentos e fibras nos Cerrados: anais... Planaltina: EMBRAPA-CPAC, 1996. p.323-328.| Biblioteca(s): Embrapa Cerrados. |
|  |
| Registros recuperados : 12 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
