Modelling the Effect of Land Management Changes on Soil Organic Carbon Stocks in a Mediterranean Cultivated Field

摘要: Land management in agricultural lands has important effects on soil organic carbon (SOC) dynamics. These are particularly relevant the Mediterranean region, where soils fragile and prone to erosion. Increasing interest of modelling simulate SOC dynamics significance erosion redistribution been linked development some recent models. In this study, SPEROS-C model was implemented a 1.6 ha cereal field for 150-year period covering 100 years minimum tillage by animal traction, 35 years conventional followed 15 years reduced chisel evaluate changes land stocks lateral fluxes agroecosystem. The spatial patterns measured simulated were good agreement their variability appeared be closely redistribution. Changes magnitude differed between showing that during losses is slightly higher (0.06 g C m-2 yr-1) compared till using (0.04 g yr-1). Although results showed potential tool induced assess relative contribution different agroecosystems, not able fully represent observed stocks. Further research (e.g. input parameters) will needed achieve more accurate results.