Chevallier Tiphaine auteur aut IRD Blanchart Eric auteur aut IRD Toucet Joële auteur aut IRD Bernoux Martial auteur aut IRD text journalArticle eng text/pdf born digital access The additional mineralized soil organic carbon (SOC) after soil crushing is considered to be the amount of SOC protected within aggregates (>200 mu m). This study investigated the effect of soil moisture in crushed and uncrushed soil samples on the calculated amounts of protected SOC in five tropical soils (Arenosol, two Ferralsols, Nitisol, and Vertisol). No differences in soil moisture optimum were observed between crushed and uncrushed soil samples, except in clayey soils with high SOC contents and high SOC mineralization rates (Nitisol and Vertisol). Crushing the soil increased soil respiration by 0.9 to 2.4 times. Soil moisture seemed to be a confounding factor in estimation of the SOC-protected amount only in soil with a high amount of protected SOC or with a low macroaggregate stability (Ferralsol and Vertisol). In these soils, the amount of protected SOC could be influenced by the method used to estimate it. specialized Carbon mineralization soil water 068 42 13 1522-1536 2011 0010-3624 https://www.documentation.ird.fr/hor/PAR00008682 10.1080/00103624.2011.581723 0010-3624 [F B010080692] https://www.documentation.ird.fr/hor/PAR00008682 https://www.documentation.ird.fr/intranet/publi/depot/2020-12-23/010080692.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2012-05-04 2021-01-04 PAR00008682 fre