Do we need to account for dynamic changes in subsurface plumbing to project blue water stocks and fluxes?

摘要: The degree to which subsurface plumbing-pores space and its connectivity—fluctuates and/or evolves is largely ignored in predictions of how Earth's critical zone is and will respond to changing climate, atmospheric (eg, CO 2), and land use/cover drivers. We argue that the community needs to consider that changes in the subsurface structure throttles the partitioning of water. We will provide several examples from across different land cover types and lithologies where subsurface pore space can respond to changes in these drivers altering groundwater recharge and interflow. Specifically, we focus on: 1) how changing summer rainfall patterns can alter groundwater recharge patterns in hillslopes overlain by shrink-swell soils, 2) how the encroachment of woody vegetation may create a greater degree of heterogeneity in patterns of interflow, 3) how shift in local and regional groundwater bodies can drive the …