Net photosynthetic accumulation of carbon by plants, also known as net primary production (NPP), captures solar energy and drives most biotic processes on Earth.
These colloidal suspensions of elemental sulfur compounds have been termed 'sols' and consist of a range of particles of varying surface character and composition that can be formed via abiotic and biotic processes (for a review of this, see [11]).
The biotic and abiotic processes of As release were investigated by using wet chemistry, X-ray diffraction, X-ray absorption and genomic techniques.
Under sterile soil conditions, the absence of mineralization confirms the importance of biotic processes in SMOC degradation.
The extensive overlap could be caused by several abiotic and biotic processes including vertical mixing of byproducts in long-screened monitoring wells, adsorption of Fe(II) onto aquifer solids, or microscale heterogeneity in Fe(III) concentrations.
The objectives of the study were to (1) investigate abiotic and biotic processes in the release of arsenic sorbed on or co-precipitated with ferrihydrite, (2) compare the results with recent observations on the decoupling of As and Fe release after incubation of Bengal Delta Plain sediments [12], and (3) evaluate different explanations of the As release using a biogeochemical model.
Overall, our results suggest that a combination of biotic processes (driven by plant life-history traits) and abiotic filters (e.g., post-fire climate) determine the early post-fire recovery process.
Recently, abiotic redox processes that induce rapid reductive dehalogenation, hydroxyl radical-based oxidation, or electron shuttling have been reasonably coupled with microbial catabolic actions, thereby compensating for the drawbacks of biotic processes in POP removal.
Biotic processes, such as the secretion of root exudates or the release of H+ from the roots to balance excess intake of cations over anions, are the common focus of root-mediated pH change.
Temporal and spatial auto-correlation is a widespread property of environmental variables and as such the result of abiotic and biotic processes and their interrelations.
