Results 81 to 90 of about 4,028 (227)

The Baget Karstic System and the Interstitial Environment of Lachein, a Hotspot of Subterranean Biodiversity in the Pyrenees (France)

Diversity
Located in Lestelas-Balaguères massif, central northern Pyrenees, France, the Baget catchment covers 13.25 km2 and is highly karstified: so far, more than 80 caves have been recorded.
Franck Bréhier, Danielle Defaye, Arnaud Faille, Anne Bedos   +3 more
doaj   +1 more source

Modeling the impacts of streambed sediment heterogeneity on hyporheic exchange

Shui kexue jinzhan, 2019
The hyporheic exchange plays a crucial role in maintaining fluvial ecological processes. In order to examine the influence of streambed heterogeneity on the hyporheic exchange,a surface water-groundwater coupling model is constructed for solving flow ...
CHEN Xiaobing, ZHENG Chunyang, YUAN Yue
doaj   +1 more source

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

PLoS 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, Karl Auerswald, Juergen Geist   +2 more
doaj   +1 more source

Ecological Characteristics of Stream Reaches With and Without Low‐Tech Process‐Based Restoration in a Wildfire‐Affected Catchment

River Research and Applications, Volume 42, Issue 5, Page 1022-1037, June 2026.
ABSTRACT Low‐tech process‐based stream restoration (LTPBR) is increasingly implemented following wildfire, underscoring the need to evaluate restoration outcomes in burned catchments. To help address this need, we measured abiotic and biotic characteristics of a reach that received LTPBR, an untreated reach, and a reach with relict beaver activity that
Kimberly A. Nichter, Travis Gilmore, Cole Carbone, Ben Sellers, Matthew P. Fairchild, Daniel L. Preston   +5 more
wiley   +1 more source

Habitat characteristics of the hyporheic zone in a mountain streambed: a case study of the upper mountainous river in China

Environmental Research Communications
The physicochemical characteristics of the hyporheic zone in streambed have a critical impact on the river ecosystem health. This study investigated eleven physicochemical parameters of the hyporheic habitat of a mountainous river in southwestern China ...
Yuewei Zhang
doaj   +1 more source

Stream Temperature Response to Increased Shading Due To Riparian Shrubification in Northern Latitudes

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 6, June 2026.
Abstract Global warming is causing rapid and profound impacts on northern ecosystems. Shifting precipitation, permafrost thaw, and rapid shrub advance into tundra environments are combining to alter stream temperature in uncertain ways. The expansion and increased abundance of shrub vegetation, termed shrubification, may moderate warming stream ...
Andras J. Szeitz, Cory A. Wallace, Faye L. Jackson, Iain A. Malcolm, David M. Hannah, Sean K. Carey   +5 more
wiley   +1 more source

Integrating Flow and Solute Flux Dynamics in an Adaptive LSTM Model for Stream Chemistry Predictions

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 3, June 2026.
Abstract High‐frequency measurements of stream solute dynamics reveal fluctuations across a multitude of time‐scales. At the storm‐event time‐scales they expose solute specific rapid mobilization or dilution effects, in addition to hysteresis. For various applications, predictions of these dynamics at measurement sites are desired to inform impending ...
Tarun Agrawal, Jinyu Wang, Allison Goodwell, Jennifer Druhan, Praveen Kumar   +4 more
wiley   +1 more source

Numerical analysis of the impacts of bedform on hyporheic exchange

Shui kexue jinzhan, 2012
The impacts of irregular bedform in cross section on hyporheic exchange are studied by means of numerical simulation computations.The computation of the hyporheic exchange rate is done using the modular finite-difference ground-water flow model(MODFLOW ...
LU Cheng-peng, SHU Long-cang, CHEN Xun-hong   +2 more
doaj   +1 more source

Contaminant Removal and Precious Metal Recovery by Lateral Channel Filtration in Mining-Impacted Alluvial Floodplains

Frontiers in Water, 2020
Water quality impacts from artisanal and small-scale alluvial (placer) gold mining operations occur in developing economies across several continents including Asia, Africa, and South America.
William P. Johnson, Eddy Pazmiño, Logan Frederick, Cesar Ron, Andrea Chica, Luis Tapia   +5 more
doaj   +1 more source

Localization of Spatiotemporally Heterogeneous Subsurface Flows Using Autoencoder‐Based Deep Learning Framework for Time‐Lapse Self‐Potential Tomography

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 3, June 2026.
Abstract Self‐potential (SP) monitoring has emerged as a valuable method for characterizing subsurface hydrogeological features and processes due to its sensitivity to fluid‐induced electrokinetic effects. Despite advancements in SP inversion, challenges remain in imaging groundwater dynamics from SP activities due to complex hydrological settings and ...
Huichao Yin, Scott J. Ikard, Dale F. Rucker, Scott C. Brooks, Zhenxue Dai, Mohamad Reza Soltanian, Kenneth C. Carroll   +6 more
wiley   +1 more source