%0 Journal Article %T Validity of the centrifuge method for determining the water retention properties of tropical soils %+ Institut des Sciences de la Terre d'Orléans (ISTO) %+ EMBRAPA Cerrados (EMBRAPA CERRADOS) %A Reatto-Braga, Adriana %A Medrado da Silva, Euzebio %A Bruand, Ary %A de Souza Martins, Éder %A Enoch Furquim Werneck Lima, Jorge %Z Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) %< avec comité de lecture %@ 0361-5995 %J Soil Science Society of America Journal %I Soil Science Society of America %V 72 %N 6 %P 1547-1553 %8 2008 %D 2008 %R 10.2136/sssaj2007.0355N %Z Sciences of the Universe [physics]/Continental interfaces, environment %Z Environmental Sciences/Global ChangesJournal articles %X 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. %G English %2 https://insu.hal.science/insu-00311740/document %2 https://insu.hal.science/insu-00311740/file/Reatto_et_al_SSSAJ._72_1547-1553_2008.pdf %L insu-00311740 %U https://insu.hal.science/insu-00311740 %~ SDE %~ INSU %~ CNRS %~ UNIV-ORLEANS %~ ISTO %~ OSUC %~ GIP-BE