River bed carbon and nitrogen cycling: state of play and some new directions
The significance of freshwaters as key players in the global budget of both carbon dioxide
and methane has recently been highlighted. In particular, rivers clearly do not act simply as …
and methane has recently been highlighted. In particular, rivers clearly do not act simply as …
Scaling the gas transfer velocity and hydraulic geometry in streams and small rivers
Scaling is an integral component of ecology and earth science. To date, the ability to
determine the importance of air–water gas exchange across large spatial scales is …
determine the importance of air–water gas exchange across large spatial scales is …
Evaluation and field-scale application of an analytical method to quantify groundwater discharge using mapped streambed temperatures
A method for calculating groundwater discharge through a streambed on a sub-reach to a
reach scale has been developed using data from plan-view mapping of streambed …
reach scale has been developed using data from plan-view mapping of streambed …
Multi-scale measurements and modeling of denitrification in streams with varying flow and nitrate concentration in the upper Mississippi River basin, USA
Denitrification is an important net sink for NO 3− in streams, but direct measurements are
limited and in situ controlling factors are not well known. We measured denitrification at …
limited and in situ controlling factors are not well known. We measured denitrification at …
Balancing watershed nitrogen budgets: accounting for biogenic gases in streams
Denitrification is critical for removal of reactive nitrogen (Nr) from ecosystems. However,
measuring realistic, scalable rates and understanding the role of denitrification and other …
measuring realistic, scalable rates and understanding the role of denitrification and other …
Whole-system estimation of hourly denitrification in a flow-through riverine wetland
W Zhang, H Li, B Li - Journal of Hydrology, 2023 - Elsevier
Accelerated degradation of aquatic ecosystems caused by excessive nitrogen input has
focused more attention on denitrification, which can permanently convert reactive nitrogen …
focused more attention on denitrification, which can permanently convert reactive nitrogen …
A comparison of different approaches for measuring denitrification rates in a nitrate removing bioreactor
Denitrifying woodchip bioreactors (denitrification beds) are increasingly used to remove
excess nitrate (NO 3−) from point-sources such as wastewater effluent or subsurface drains …
excess nitrate (NO 3−) from point-sources such as wastewater effluent or subsurface drains …
Net N2 fluxes from different lowland ponds draining contrasting land uses in a hilly catchment: Implications for nitrogen removal and its environmental controls
W Zhang, H Li, T Xia, H Cao - Agriculture, Ecosystems & Environment, 2022 - Elsevier
The lowland ponds, depressional submerged areas that are fed by runoff from surrounding
uplands and then send overflows to downstream water bodies, are recognized as …
uplands and then send overflows to downstream water bodies, are recognized as …
Open-channel measurement of denitrification in a large lowland river
Denitrification is considered to be the most important pathway removing nitrogen from
terrestrial and freshwater ecosystems. However, field studies that quantify this process under …
terrestrial and freshwater ecosystems. However, field studies that quantify this process under …
A synthesis of nitrogen transformations and transfers from land to the sea in the Yaqui Valley agricultural region of northwest Mexico
TD Ahrens, JM Beman, JA Harrison… - Water Resources …, 2008 - Wiley Online Library
Intensification of agricultural systems represents one of the most significant land use
changes of the last century. High fertilizer inputs have been a key component of …
changes of the last century. High fertilizer inputs have been a key component of …