Phytostabilization results in:
Phytostabilization aims to reduce mobility and bioavailability of heavy metals not readily degradable without removing mass, establishing persistent vegetative cover immobilizing pollutants in root zone and preventing off-site migration via wind or water. Tolerant grasses Festuca rubra, Agrostis stolonifera and Buchloe dactyloides plus legumes fix nitrogen achieve stabilization through raising rhizosphere pH via carbonates causing precipitation as hydroxides and phosphates, stimulating sulfate-reducing Desulfovibrio producing sulfide precipitating PbS and ZnS with Ksp 10^-28, binding to root c
Ref: Mendez & Maier Phytostabilization of mine tailings 2008 Environmental Health; EPA phytostabilization guidance 2000; PubMed immobilization mechanisms.
