Vetiver-Based Phytostabilization of Filtered Mine Tailings as a Sustainable Ecological Restoration Technology: Experimental Shear-Strength Characterization and Slope-Stability Assess-ment

This Supplemental Data document provides the complete numerical datasets that support all the results reported in the main manuscript. The data are organized according to the sequence of Results (Section 4) and cover: (S1) parameter of effective cohesion in dry conditions in bare tailings; (S2) friction angle parameter in dry conditions in bare tailings; (S3) apparent cohesion parameters under dry conditions in tailings-root matrix; (S4) parameters of modified friction angle under dry conditions in tailings-root matrix; (S5) slope stability of the heterogeneous model with variation in plant growth; (S6) slope stability of the heterogeneous model with variation in root orientation. The datasets included in this supplementary data document were generated from direct shear and triaxial compression tests, derived strength and envelope fitting procedures, and stability analyses of boundary equilibrium slopes performed on proposed prototype low-plasticity (CL) clay-silt (polyethylene columns, depth 0.3 - 0.0 m).