Results 31 to 40 of about 7,895 (223)

Maximum respiration rates in hyporheic zone sediments are primarily constrained by organic carbon concentration and secondarily by organic matter chemistry [PDF]

open access: yesBiogeosciences, 2023
River corridors are fundamental components of the Earth system, and their biogeochemistry can be heavily influenced by processes in subsurface zones immediately below the riverbed, referred to as the hyporheic zone.
J. C. Stegen   +7 more
doaj   +1 more source

Influence of the hyporheic zone on the phosphorus dynamics of a large gravel-bed river, Garonne River, France [PDF]

open access: yes, 2009
Phosphorus (P) concentrations in sediments and in surface and interstitial water from three gravel bars in a large river (Garonne River, southern France) were measured daily, downstream of a wastewater treatment plant for a city of 740 000 inhabitants ...
Ballantine   +70 more
core   +2 more sources

Logjam Characteristics as Drivers of Transient Storage in Headwater Streams

open access: yesWater Resources Research, 2023
Logjams in a stream create backwater conditions and locally force water to flow through the streambed, creating zones of transient storage within the surface and subsurface of a stream.
A. Marshall   +4 more
doaj   +1 more source

Faunal response to benthic and hyporheic sedimentation varies with direction of vertical hydrological exchange [PDF]

open access: yes, 2014
1. Sedimentation and clogging of benthic and hyporheic zone substrates is increasingly being recognised as one of the greatest threats to the ecological integrity of riverine ecosystems globally. This ex-situ study examined the influence of sedimentation
Bo   +58 more
core   +2 more sources

Benthic and interstitial habitats of a lentic spring as invertebrate refuges during supra-seasonal drought [PDF]

open access: yes, 2013
Instream refuges are places where invertebrates persist during disturbances due to reduced adverse impacts. During droughts, low flows may be accompanied by elevated temperatures, and potential refuges including subsurface sediments and spring-fed ...
Stubbington, R, Wood, PJ
core   +1 more source

Advances in the response of surface-subsurface water exchange to activities of typical aquatic organisms in the hyporheic zone of rivers

open access: yesShui kexue jinzhan, 2022
The river hyporheic zone is the main area of surface-subsurface connection and exchange. Surface-subsurface water exchange promotes the transport and transformation of biogenic substances and can conserve water resources, stabilize regional ecological ...
Guangqiu JIN   +5 more
doaj   +1 more source

Microbial community composition of transiently wetted Antarctic Dry Valley soils [PDF]

open access: yes, 2015
During the summer months, wet (hyporheic) soils associated with ephemeral streams and lake edges in the Antarctic Dry Valleys (DVs) become hotspots of biological activity and are hypothesized to be an important source of carbon and nitrogen for arid DV ...
Aislabie   +77 more
core   +3 more sources

Hyporheic Oxygen Dynamics in the East River, Colorado: Insights From an In‐Situ, High Frequency Time Series During Two Distinct Flow Seasons

open access: yesWater Resources Research, 2023
Dissolved oxygen (DO) is critical for aquatic ecosystems, however, few studies have focused on the long‐term DO dynamics in hyporheic zones, which are a function of both transport (hydrologic exchange between river and hyporheic zone) and uptake by ...
Michael N. Gooseff   +5 more
doaj   +1 more source

The response of perennial and temporary headwater stream invertebrate communities to hydrological extremes [PDF]

open access: yes, 2009
The headwaters of karst rivers experience considerable hydrological variability, including spates and streambed drying. Extreme summer flooding on the River Lathkill (Derbyshire, UK) provided the opportunity to examine the invertebrate community response
A Chakona   +59 more
core   +1 more source

Drivers and spatio-temporal extent of hyporheic patch variation: implications for sampling. [PDF]

open access: yesPLoS ONE, 2012
The hyporheic zone in stream ecosystems is a heterogeneous key habitat for species across many taxa. Consequently, it attracts high attention among freshwater scientists, but generally applicable guidelines on sampling strategies are lacking.
Alexander Braun   +2 more
doaj   +1 more source

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