The Influence of Warming on Phosphorus Burial in Continental Margin Sediments

The marine phosphorus cycle plays a critical role in regulating rates of primary productivity and thus the size biosphere. Yet, cumulative effects temperature change—and warming, particular—on burial remain poorly understood. Here, we explore benthic biogeochemical model that accounts for compounded effect on kinetics key diagenetic reaction pathways, diffusion coefficients, seawater p H, dissolved O 2 concentration bioturbation, order to provide new predictive framework understanding response associated with P continental margin settings. We find has direct positive impact burial, as it directly increases formation rate mineral P-removal pathways—foremost carbonate fluorapatite (CFA). increase authigenic during climate warming is likely partially counter increased water-column regeneration events, influence extent oceanic anoxia organic matter factor should be considered when assessing face warming.