Impact of Riverine Source Rock Material Pressure Effect on Global Ocean POC Flux Simulation

The scatter plot in Figure 3 and the Taylor diagram in Figure 4 indicate that there is no significant difference in the quality of simulated global ocean POC flux between the control group and the sensitive experimental group, despite changes in the concentration of riverine source rock materials and their diffusion distance towards the open ocean. This suggests that, although the addition of the RLM effect did not significantly improve the simulation of global ocean POC flux, it also did not have any adverse effects. This does not necessarily mean that the simulation of the marginal seas in the sensitive experimental group was not affected, but rather that the limited sediment trap data collected from these regions may have had a small impact on the overall correlation and regression slope. It is worth noting that although the changes in simulation performance were small, the addition of riverine source rock material pressure effect enhanced the correlation coefficient between simulated and observed POC flux results slightly, from 0.58 in the control group to a maximum of 0.68 in the sensitive experimental group, particularly in the sensitive experiment of riverine source rock materials migrating from the continental shelf and slope towards the ocean, without performing logarithmic transformation.