|From the desk of Bruce Wilkinson:|
Briggs, M.A., Lautz, L.K., and Hare, D.K., 2013, Residence time control on hot moments of net nitrate production and uptake in the hyporheic zone: Hydrological Processes
"The retention capacity for biologically available nitrogen within streams can be influenced by dynamic hyporheic zone exchange, a process that may act as either a net source or net sink of dissolved nitrogen. The results indicate a non-linear relation of net NO-3 production followed by net uptake in the hyporheic zone as a function of residence time. This Lagrangian-based relation is consistent through time and across varied morphology (bars, pools, glides) above the dams, even though biogeochemical and environmental factors varied"