Results 31 to 40 of about 878 (181)

Interaction Between Nitrogen Forms, Phosphorus Forms, and Mineral Phases Drives Phosphorus Limitation and Uptake by Ryegrass in a Model System

open access: yesJournal of Plant Nutrition and Soil Science, Volume 189, Issue 4, Page 593-604, August 2026.
Nitrogen addition shifts plant nutrition from nitrogen to phosphorus (P) limitation. Nitrate‐based nitrogen enhances P acquisition more effectively than ammonium through increased phosphatase activity, independently of pH changes. Organic P forms induce stronger P limitation than inorganic P.
Issifou Amadou   +4 more
wiley   +1 more source

Geochemical and Isotopic Evidence of Groundwater Salinization Processes in El Dabaa Area, Northwestern Coast, Egypt

open access: yesGeosciences, 2018
El Dabaa city is located along the northwestern coast ridge zone of Egypt, where the groundwater is the major water source for drinking, domestic, and agricultural purposes. The groundwater salinity increased over the last decades, therefore, geochemical
Mustafa A. Eissa   +4 more
doaj   +1 more source

A Global Review of Microplastic Contamination in Groundwater: Empirical Evidence and Latin American Perspectives

open access: yesWater and Environment Journal, Volume 40, Issue 3, Page 357-366, August 2026.
ABSTRACT The presence of microplastics (MPs) in groundwater has emerged as a significant concern due to their environmental impact and the threat they pose to vital water resources, groundwater being one of the most important freshwater sources in the world.
Lara Luiza de Oliveira Pompermayer   +7 more
wiley   +1 more source

Identifying sources and environmental risks of emerging mobile organic pollutants in the urban groundwater of Barcelona (Spain)

open access: yesEnvironmental Chemistry and Ecotoxicology
Groundwater is a vital yet vulnerable resource, subject to contamination from recharge sources and water system leaks by organic pollutants, including personal care products, pharmaceuticals, sweeteners, and industrial chemicals.
Francesc Labad   +5 more
doaj   +1 more source

Application of Multi-Isotopes and Geochemical Modeling for Delineating Recharge and Salinization Sources in Dahab Basin Aquifers (South Sinai, Egypt)

open access: yesHydrology, 2018
The Dahab watershed comprises three aquifers; the alluvial Quaternary, the Early Cambrian sandstone, and the fractured Pre-Cambrian basement aquifers.
Mustafa A. Eissa
doaj   +1 more source

Understanding of groundwater evolution through chemical and age dating information in the Yongding River alluvial fan in Beijing

open access: yesFrontiers in Environmental Science, 2022
Groundwater plays important roles in human community development and the urbanization process as the results of global environmental change and rapid population growth.
Kai Liu   +6 more
doaj   +1 more source

Abiotic Drivers of Groundwater Fauna Across Aquifer Types and Urban–Rural Gradients in the City of Halle (Saale), Germany

open access: yesEcohydrology, Volume 19, Issue 5, July/August 2026.
ABSTRACT Subterranean ecosystems in urban environments are exposed to multiple anthropogenic stressors that compromise groundwater quality and biodiversity. Rising groundwater temperatures, oxygen depletion, hydraulic disturbance and chemical contamination are among the main pressures.
Laura Meyer   +3 more
wiley   +1 more source

The Influence of Water Temperature on the Hydrogeochemical Composition of Groundwater during Water Extraction and Reinjection with Geothermal Heat

open access: yesEnergies, 2023
This study presents a simulation of potential changes in groundwater in three wells within a Quaternary gravel aquifer in the city of Ljubljana when groundwater cooled by about 4 °C is reinjected into it.
Timotej Verbovšek
doaj   +1 more source

Thermodynamic Constraints on H2 Production and Habitability From Mg‐Rich Serpentinites as Mars Analogs

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Serpentinization produces hydrogen and methane through abiotic water‐rock interactions, potentially supporting chemotrophic life in planetary subsurface environments. Serpentine deposits in the Martian Noachian landscapes of Nili Fossae and the Southern Highlands have been considered as potential paleo‐habitable zones. However, the geochemical
Devan M. Nisson   +11 more
wiley   +1 more source

Geochemical Features of the Thermal and Mineral Waters From the Apuseni Mountains (Romania)

open access: yesFrontiers in Earth Science, 2021
The Apuseni Mountains are located between the large geothermal area of the Pannonian Basin and the low thermal flux Transylvanian Basin. Thermal and mineral waters have been sampled from 42 points along a NW-SE transect.
Alin-Marius Nicula   +7 more
doaj   +1 more source

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