Measuring and modelling macropores and preferential flow in structured soils

agricultural soils agrietamiento del suelo clay soils computador computers densidad del suelo estructura del suelo fissuration du sol flow rate gasto infiltration labranza mathematical models measurement merma mesure noruega norway ordinateur procesos de transporte en el suelo radiografia radiographie radiography rayon x retrait shrinkage soil cracking soil density soil hydraulic properties soil structure soil transport processes sol agricole sol argileux solute solutes soluto structure du sol suelo arcilloso tillage transport dans le sol travail du sol x rays