This section details the calculated values used in the geochemical modeling of basalt amendment in soils. These calculations are essential for understanding the physical and chemical interactions in the soil system, including porosity, basalt concentration, and surface area, all of which influence dissolution kinetics, carbon sequestration potential, and soil fertility.
This refers to the fraction of soil volume that is occupied by air or inaccessible pores that do not contribute to active water and solute transport. These pores influence soil aeration, microbial activity, and water retention.
The total volume of soil considered per hectare, assuming a specific soil depth. This is critical for determining the mass of amendments needed and the scale of geochemical interactions.
This represents the total volume of water present in the soil pore spaces within one hectare. It accounts for soil porosity and influences dissolution rates of minerals, ion mobility, and reaction kinetics.
The amount of basalt amendment introduced per unit volume of soil. This factor is crucial for predicting mineral dissolution rates, cation release, and CO₂ sequestration efficiency.
The mass of basalt per unit volume of soil pore water, which determines the exposure of basaltic material to water and the subsequent geochemical reactions.
Represents the proportion of basalt relative to the total mass of the soil-water system. This metric helps evaluate the amendment's overall impact on soil properties and reaction dynamics.
Specific surface area (SSA) is the available reactive surface per unit mass or volume of rock. This parameter is fundamental in controlling reaction rates, as higher SSA increases the exposure of minerals to dissolution processes.
Total reactive surface area of basalt in the soil system, calculated based on the SSA and total basalt mass. This value helps determine dissolution kinetics, weathering rates, and the efficiency of CO₂ sequestration.
This documentation provides a foundational reference for interpreting geochemical model outputs and designing basalt amendment strategies in soil systems.