Modelling of bulk density as related to aggregate size distribution in clayey Ferralsols

Nathalie Volland-Tuduri (1) , Ary Bruand (1) , Michel Brossard (2) , Luíz Carlos Balbino (3) , Maria Inês Lopes de Oliveira (4) , Éder de Souza Martins (4)

1 ISTO - Institut des Sciences de la Terre d'Orléans
2 VALPEDO - Actualisation et valorisation des données pédologiques tropicales et méditerranéennes. Contributions à la recherche, à l'expertise et à l'aide à la gestion des ressources
3 EMBRAPA ARROZ E FEIJãO - EMBRAPA Arroz e Feijão
4 EMBRAPA CERRADOS - EMBRAPA Cerrados

Among microaggregated soils, there are Ferralsols that show little or no distinct horizonation. Their macrostructure is weak to moderate and they have typically a strong microstructure. In most Brazilian clayey Ferralsols, physical properties are closely related to the development of microstructure that consists of subrounded microaggregates 50 to 500 µm in diameter.

Domaines: Interfaces continentales, environnement

Nathalie Volland-Tuduri, Ary Bruand, Michel Brossard, Luíz Carlos Balbino, Maria Inês Lopes de Oliveira, et al.. Modelling of bulk density as related to aggregate size distribution in clayey Ferralsols. Eurosoil, 2004, Freiburg, Germany. ⟨hal-00079880⟩