Redox-driven biogeochemical element cycles play a central role in converting organic
matter in aquatic ecosystems. They also perform key functions such as removing nitrate …

Reduction–oxidation (redox) reactions underlie essentially all biogeochemical cycles. Like
most soil properties and processes, redox is spatiotemporally heterogeneous. However …

It has been documented that contaminants could be degraded by hydroxyl radicals (• OH)
produced upon oxygenation of Fe (II)-bearing sediments. However, the dependence of …

Floodplains perform diverse functions, including attenuation of fluxes of water, solutes, and
particulate material. Critical details of floodplain storage including magnitude, duration, and …

Core Ideas Development of a 300‐km2 mountainous headwater testbed began in 2016 in
the East River. The testbed can be used to explore how watershed changes impact …

Electron transfer (ET) is the fundamental redox process of life and element cycling. The ET
distance is normally as short as nanometers or micrometers in the subsurface. However, the …

Reductive transformation of organic contaminants by FeS in anoxic environments has been
documented previously, whereas the transformation in oxic environments remains poorly …

The cycling processes of elemental manganese (Mn), including the redox reactions of
dissolved Mn (III)(dMn (III)), directly and indirectly influences the biogeochemical processes …

Ecological water replenishment (EWR) is an essential approach for improving the quantity
and quality of regional water. The Chaobai River is a major river in Bei**g that is …

We use 3‐D high‐resolution reactive transport modeling to investigate whether the spatial
distribution of organic‐carbon‐rich and chemically reduced sediments located in the riparian …