Validity of the centrifuge method for determining the water retention properties of tropical soils - INSU - Institut national des sciences de l'Univers Accéder directement au contenu
Article Dans Une Revue Soil Science Society of America Journal Année : 2008

Validity of the centrifuge method for determining the water retention properties of tropical soils

Résumé

This study aims at comparing the centrifuge and pressure plate methods when appropriate duration of run is adopted. Samples collected in tropical soils located in Brazil along a 10-km local hydrosequence across the Cerrado-Amazonia transition (set 1) and along a 350-km regional toposequence across the Cerrado region (set 2) were selected to compare and discuss statistically the similarity of the soil-water retention recorded by using the pressure plate and centrifuge methods. The results showed good agreement (R2 = 0.99) for the 1:1 comparison of measured point-wise soil-water content values (set 1) as well as for the fitted soil-water content curves by van Genuchten model using data points obtained with the two methods (set 2). Thus, the centrifuge method should be considered as an appropriate method for determining soil-water retention properties not only for the similar results with the pressure plate method but also for being much less time consuming.
Fichier principal
Vignette du fichier
Reatto_et_al_SSSAJ._72_1547-1553_2008.pdf (284.12 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

insu-00311740 , version 1 (31-10-2008)

Identifiants

Citer

Adriana Reatto-Braga, Euzebio Medrado da Silva, Ary Bruand, Éder de Souza Martins, Jorge Enoch Furquim Werneck Lima. Validity of the centrifuge method for determining the water retention properties of tropical soils. Soil Science Society of America Journal, 2008, 72 (6), pp.1547-1553. ⟨10.2136/sssaj2007.0355N⟩. ⟨insu-00311740⟩
122 Consultations
1808 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More