Canadian Journal of Soil Science, Год журнала: 2025, Номер 105, С. 1 - 10

Опубликована: Янв. 1, 2025

Water erosion of rare earth tailings poses significant ecological risks, while moss crusts are widely distributed across these tailings. However, their role in mitigation remains poorly understood. Using a single-raindrop simulation experiment, this study quantified the kinetic energy reduction capacity at four developmental stages (I: bare soil; II–IV: increasing cover, biomass, and height). Key results include: (1) Moss markedly increased accumulated required to disrupt surface ( E ). At 1 cm thickness, values for II, III, IV were 0.04, 0.18, 4.61 J, respectively—stage exhibited 363-fold greater resistance than soil (stage I). (2) After removal, underlying soil's under ) dropped sharply (averaging 0.01 J stages), with no differences between stages. reduced raindrop by 65.04% II), 92.79% III), 99.72% IV). (3) Resistance correlated strongly slope moisture: air-dried higher (0.35 J) wet samples, steeper slopes (25°–30°) mos s 10-fold compared flat terrain. These findings demonstrate that act as effective physical barriers against splash erosion, offering scalable strategy restoration degraded subtropical regions.

Язык: Английский