Results 21 to 30 of about 7,895 (223)

Probabilistic Forecasting of Nitrogen Dynamics in Hyporheic Zone [PDF]

Water Resources Research, 2018
AbstractNitrification‐denitrification processes in the hyporheic zone control the dynamics of dissolved inorganic nitrogen (DIN) species and can lead to production of nitrous oxide, which contributes to the greenhouse effect. We consider DIN dynamics in an advection‐dominated regime, wherein transport and reactions occur along streamlines crossing ...
Francesca Boso, Alessandra Marzadri, Daniel M. Tartakovsky   +2 more
openaire   +2 more sources

Short-term influences of flow alteration on microbial community structure and putative metabolic functions in gravel bar hyporheic zones

Frontiers in Environmental Science, 2023
Microbial communities in the hyporheic zone are important for self-purification as the riverbed is metabolically active and responsible for the retention, storage, and mineralisation of organic matter transported in the surface water.
Arnelyn D. Doloiras-Laraño, Arnelyn D. Doloiras-Laraño, Joeselle M. Serrana, Shinji Takahashi, Yasuhiro Takemon, Kozo Watanabe   +5 more
doaj   +1 more source

Longitudinal transformation of nitrogen and carbon in the hyporheic zone of an N-rich stream: A combined modelling and field study [PDF]

, 2011
A combined modelling and field study approach was used to examine biogeochemical functioning of the hyporheic zone in two gravel bars in an N-rich fourth-order stream (River Hers, south-west France).
Delmotte, Sébastien, Gérino, Magali, Namour, Philippe, Peyrard, Dimitri, Sanchez-Pérez, José Miguel, Simeoni-Sauvage, Sabine, Vervier, Philippe   +6 more
core   +2 more sources

Artificial flood reduces fine sediment clogging enhancing hyporheic zone physicochemistry and accessibility for macroinvertebrates

Ecological Solutions and Evidence, 2021
River regulation globally has reduced the riverine connectivity (longitudinal, lateral and vertically) with significant consequences for their abiotic and biotic components.
Kate L. Mathers, Christopher T. Robinson, Christine Weber   +2 more
doaj   +1 more source

Spatial variability in the hyporheic zone refugium of temporary streams [PDF]

, 2011
A key ecological role hypothesized for the hyporheic zone is as a refugium that promotes survival of benthic invertebrates during adverse conditions in the surface stream.
Reid, I, Stubbington, R, Wood, PJ
core   +1 more source

Spatial and temporal variability of hyporheic invertebrate community within a stream reach of the River Bača (W Slovenia)

Natura Sloveniae, 2011
We studied spatio-temporal distribution of hyporheic invertebrate community at the stream-reach scale in the River Bača on three sampling occasions (January, March, May) in 2005.
Nataša Mori, Anton Brancelj
doaj   +1 more source

Silicon Isotopes Reveal a Non-glacial Source of Silicon to Crescent Stream, McMurdo Dry Valleys, Antarctica

Frontiers in Earth Science, 2020
In high latitude environments, silicon is supplied to river waters by both glacial and non-glacial chemical weathering. The signal of these two end-members is often obscured by biological uptake and/or groundwater input in the river catchment.
Catherine Hirst, Sophie Opfergelt, François Gaspard, Katharine R. Hendry, Jade E. Hatton, Susan Welch, Diane M. McKnight, W. Berry Lyons   +7 more
doaj   +1 more source

Hyporheic hydraulic geometry: Conceptualizing relationships among hyporheic exchange, storage, and water age.

PLoS ONE, 2022
Hyporheic exchange is now widely acknowledged as a key driver of ecosystem processes in many streams. Yet stream ecologists have been slow to adopt nuanced hydrologic frameworks developed and applied by engineers and hydrologists to describe the ...
Geoffrey C Poole, S Kathleen Fogg, Scott J O'Daniel, Byron E Amerson, Ann Marie Reinhold, Samuel P Carlson, Elizabeth J Mohr, Hayley C Oakland   +7 more
doaj   +1 more source

Changes in invertebrate assemblage composition in benthic and hyporheic zones during a severe supraseasonal drought [PDF]

, 2014
Droughts are unpredictable disturbances characterized in streams by declining flow, reduced habitat availability, and deteriorating abiotic conditions.
Boulton, AJ, Little, S, Stubbington, R, Wood, PJ   +3 more
core   +2 more sources

Evaluation of Nitrate Reduction Potential Using Field Water Quality Parameters of the Hyporheic Zone in the Tandoncheon Stream, Daejeon, Korea [PDF]

Geo Data
The hyporheic zone is a transitional interface between surface water and groundwater that is characterized by distinct physicochemical conditions and plays a key role in various biogeochemical processes.
Hanna Choi, Sooyeon Han, JongGyu Han, Yebin Lee   +3 more
doaj   +1 more source