Synergistic Effects of a Microbial Amendment and Crushed Basalt: Soil Geochemical and Microbial Responses.

ABSTRACT: Over geologic timescales, the natural weathering of silicate minerals in soils and regolith regulates atmospheric CO₂. Although this process is slow relative to anthropogenic emissions, several strategies have been proposed to accelerate this process for climate mitigation. These include the application of finely-ground silicate rock to increase mineral surface area (enhanced weathering, EW) and the use of microbes that catalyze mineral dissolution and CO₂ biomineralization (microbial carbon dioxide mineralization, MCM). While both approaches show promise, their combined application has rarely been tested. Here, we examined how soil chemistry and bacterial communities respond to a basalt feedstock rich in silicate minerals, a Bacillus subtilis strain (MP1) previously

SUBMITTER: Yang YY 

PROVIDER: S-EPMC12811823 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature