Research to understand the nitrogen cycle has been thriving. The production of reactive
nitrogen by humans exceeds the removal capacity through denitrification of any natural …

Ocean warming has severe impacts on coral reef ecosystems with frequent incidences of
coral bleaching. In addition, eutrophication poses an increasing threat to coral reef …

Growing populations and agricultural intensification have led to raised riverine nitrogen (N)
loads, widespread oxygen depletion in coastal zones (coastal hypoxia) and increases in the …

Despite decades of policy that strives to reduce nutrient and sediment export from
agricultural fields, surface water quality in intensively managed agricultural landscapes …

River networks modify material transfer from land to ocean. Understanding the factors
regulating this function for different gaseous, dissolved, and particulate constituents is critical …

Small water bodies such as interval water-flooded ditches, ponds, and streams serve as
important nutrient sinks in many landscapes, especially in the multi-water continuum system …

Wetlands have the capacity to retain nitrogen and phosphorus and are thereby often
considered a viable option for improving water quality at local scales. However, little is …

Arctic riverine fluxes are anticipated to increase as the Arctic warms and have a large impact
on the Arctic ocean. Deltas modify the spatial and temporal distributions of riverine fluxes …

A recently introduced multiscale model for representing the effects of small-scale hyporheic-
zone biogeochemical processes is extended from the reach scale to river network scales …

Wetlands are often dominant features in low relief, depressional landscapes and provide an
array of hydrologically driven ecosystem services. However, contemporary models do not …