This preprint presents a unified terrestrial-aquatic remediation framework connecting Holistic Planned Grazing (HPG) driven soil biology recovery in degraded agricultural catchments to surface water quality improvement in receiving waterways. The framework rests on four mechanistic connections: HPG improves soil infiltration through documented soil biology recovery; improved infiltration reduces surface runoff and contaminant export; reduced export improves receiving water quality; and spent filtration matrix tiles from the cannabis-earth hexagonal system (Presignal Preprint 27) provide soil amendments that contribute to upstream land restoration, creating a closed material linkage. The HPG evidence base is assessed honestly including the contested Briske et al. meta-analytic literature. An integrated three-phase research programme is proposed combining paired watershed monitoring, spent tile amendment trials, and catchment-scale hydrological modelling.
John Carter (Mon,) studied this question.