Soil biogeochemistry considers the interactions between soil particles and the plants, microbes, and chemicals that control the fate of contaminants and nutrients in soils.
My research group is concerned with the soil-plant-microbial interface. We are studying how microorganisms on mineral and root surfaces enhance the weathering of minerals and supply of nutrients to living organisms while inhibiting denudation of the soil. We are also looking at how composts can be designed for use as components in soil remediation and stormwater filtering to sequester toxic metals and metalloids.
My research emphasizes linking the function and phylogeny of the soil microbiome, specifically with regard to interactions with plant roots and impacts on metal bioavailability and plant uptake. The soil microbiome is key in the biotransformations of many micronutrients and metals in the rhizosphere; these consortia and the mechanisms involved, drives my work.