Results 51 to 60 of about 5,645 (215)

Dissolved organic carbon uptake in streams: A review and assessment of reach‐scale measurements [PDF]

open access: yes, 2016
Quantifying the role that freshwater ecosystems play in the global carbon cycle requires accurate measurement and scaling of dissolved organic carbon (DOC) removal in river networks.
Buffam, Ishi   +8 more
core   +3 more sources

Hydromorphological control of phosphorus in a large free-flowing gravel bed river: the Garonne river (France) [PDF]

open access: yes, 2001
The objective of this paper is to relate phosphorus (P) transport dynamics and hydromorphological characteristics of a large human-influenced river, the River Garonne within a sector receiving the waste water of a sewage treatment plant for a population ...
Agnew   +49 more
core   +1 more source

Testing Hidden Assumptions of Representativeness in Reach‐Scale Studies of Hyporheic Exchange

open access: yesWater Resources Research, 2023
Field studies of hyporheic exchange in mountain systems are often conducted using short study reaches and a limited number of observations. It is common practice to assume these study reaches represent hyporheic exchange at larger scales or different ...
Paige S. Becker   +3 more
doaj   +1 more source

Interactions between groundwater and surface water at river banks and the confluence of rivers [PDF]

open access: yes, 2004
Riparian vegetation depends on hydrological resources and has to adapt to changes in water levels and soil moisture conditions. The origin and mixing of water in the streamside corridor were studied in detail.
Fraser   +25 more
core   +2 more sources

Turbulence‐Driven Clogging of Hyporheic Zones by Fine Particle Filtration

open access: yesGeophysical Research Letters, 2023
Hyporheic exchange (HE), fine particle deposition and clogging are tightly coupled processes that control ecosystem services in rivers. While HE is assumed to be induced primarily by riverbed topography, surface flow turbulence also drives significant ...
Edwin Saavedra Cifuentes   +5 more
doaj   +1 more source

On the Representation of Hyporheic Exchange in Models for Reactive Transport in Stream and River Corridors

open access: yesFrontiers in Water, 2021
Efforts to include more detailed representations of biogeochemical processes in basin-scale water quality simulation tools face the challenge of how to tractably represent mass exchange between the flowing channels of streams and rivers and ...
Scott L. Painter
doaj   +1 more source

Hyporheic Exchange and Water Chemistry of Two Arctic Tundra Streams of Contrasting Geomorphology [PDF]

open access: yes, 2008
The North Slope of Alaska’s Brooks Range is underlain by continuous permafrost, but an active layer of thawed sediments develops at the tundra surface and beneath streambeds during the summer, facilitating hyporheic exchange.
Bowden, William B.   +6 more
core   +2 more sources

Quantifying the Spatial Variations of Hyporheic Water Exchange at Catchment Scale Using the Thermal Method: A Case Study in the Weihe River, China

open access: yesAdvances in Meteorology, 2017
Understanding the dynamics of hyporheic water exchange (HWE) has been limited by the hydrological heterogeneity at large catchment scale. The thermal method has been widely used to understand water exchange patterns in a hyporheic zone.
Junlong Zhang   +6 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

Subterranean environments contribute to three‐quarters of classified ecosystem services

open access: yesBiological Reviews, EarlyView.
ABSTRACT Beneath the Earth's surface lies a network of interconnected caves, voids, and systems of fissures forming in rocks of sedimentary, igneous, or metamorphic origin. Although largely inaccessible to humans, this hidden realm supports and regulates services critical to ecological health and human well‐being.
Stefano Mammola   +30 more
wiley   +1 more source

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