Results 31 to 40 of about 876,776 (169)

Contrastive mechanisms of lacustrine groundwater discharge and associated pollutant fluxes into two typical inland lakes in Inner Mongolia, Northwest China.

open access: yesJournal of Environmental Science
Lacustrine groundwater discharge (LGD) plays an important role in water resources management. Previous studies have focused on LGD process in a single lake, but the differences in LGD process within the same region have not been thoroughly investigated ...
Yuan-Zhen Zhao   +7 more
semanticscholar   +1 more source

Towards an ‘absolute’ timing of biostratigraphic and environmental phases from the Saalian late glacial to the Weichselian pleniglacial in central Europe—Insights from a lacustrine succession in Lichtenberg, northern Germany

open access: yesBoreas, EarlyView.
Palynological records are central to the biostratigraphic subdivision of the Late Pleistocene in central Europe. Yet many interglacial and interstadial phases—such as the Eemian, Brörup and Odderade—remain only poorly constrained in time due to limited numerical dating.
Michael Hein   +19 more
wiley   +1 more source

Dispersal, source and glass chemistry of a third tephra unit within Iceland's Settlement Layer

open access: yesBoreas, EarlyView.
Tephra layers may be studied to understand the dynamics and sequence of past explosive volcanism. In Iceland, the distinctive Settlement Layer (AD ~877) underlies almost all archaeological evidence for the Norse Settlement and is preserved in soils across Iceland and as cryptotephra overseas.
Conner A. G. Morison   +3 more
wiley   +1 more source

Microplastic Dynamics in Sediment Layers of Two Ramsar‐Designated Wetlands

open access: yesWater and Environment Journal, EarlyView.
ABSTRACT Little is known about the vertical and spatial dynamics of microplastics in relation to hydrology and land use, particularly in African context. This study aimed to assess the abundance, type, colour and vertical distribution of microplastics in sediment from two Ramsar‐designated wetlands, the Makuleke and Nylsvley. Sediment core samples were
Nelisiwe Ngomane   +7 more
wiley   +1 more source

Nitrate removal in a restored riparian groundwater system : functioning and importance of individual riparian zones [PDF]

open access: yes, 2012
For the design and the assessment of river restoration projects, it is important to know to what extent the elimination of reactive nitrogen (N) can be improved in the riparian groundwater.
Tockner, Klement   +26 more
core   +2 more sources

Approaches to hazard-oriented groundwater management based on multivariate analysis of groundwater quality [PDF]

open access: yes, 2011
Drinking water extracted near rivers in alluvial aquifers is subject to potential microbial contamination due to rapidly infiltrating river water during high discharge events.
Page, Rebecca Mary
core   +1 more source

Genetic Structure and Signs of Local Adaptation in Icelandic Brown Trout Populations

open access: yesEcology and Evolution, Volume 16, Issue 9, September 2026.
We present here an assessment of the genetic structure of Icelandic brown trout across 40 locations, revealing 16 distinct genetic clusters shaped by postglacial isolation and local adaptation. Our research highlights that landlocked headwater populations exhibit significantly reduced genetic diversity compared to anadromous groups and identifies ...
Marcos Lagunas   +4 more
wiley   +1 more source

Temporal Changes In Shallow Groundwater Quality In Northeastern Illinois [PDF]

open access: yes, 2002
The rapid increase in population and developed land in the Chicago, Illinois, metropolitan area has placed a heavy demand on water resources. The water sources most likely to be developed in this region over the next few decades are shallow aquifers ...
Kelly, Walton R., Wilson, Steven D.
core  

An assessment of the risk to surface water ecosystems of groundwater P in the UK and Ireland [PDF]

open access: yes, 2010
A good quantitative understanding of phosphorus (P) delivery is essential in the design of management strategies to prevent eutrophication of terrestrial freshwaters. Most research to date has focussed on surface and near-surface hydrological pathways,
Willby, N.   +17 more
core   +1 more source

Delineation of Flow Components in a Tropical Region With Carbonate Rocks of Southeastern Mexico

open access: yesHydrological Processes, Volume 40, Issue 9, September 2026.
Hydrochemistry and statistical methods help to delimit the flow components in carbonate rocks with marine intrusion. ABSTRACT This study analyses groundwater flow systems in a tropical karst aquifer of the Yucatán Peninsula, Mexico, where population growth and tourism are concerns due to increasing urbanisation.
Castro‐Zarate Martha Edith   +9 more
wiley   +1 more source

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