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The behavior of root-soil system has raised more and more attention in both ecological and geotechnical fields. In this study, a two-dimensional discrete element method is employed using PFC2D to simulate the root-reinforced soil. The root system is mimicked by chains of bonded discs, while the soil is modeled by granular particles. The tensile strength of the root is modeled by interdiscs' bonding strength. Three laboratory tests were studied to calibrate the micromechanical parameters of DEM.doi:10.1155/2021/6623489 doaj:8306892f994541cab2a330d50602b640 fatcat:znlgc3swfnf3hnwr3nisexjdr4