Results 61 to 70 of about 7,599 (216)

Plastic Pollution in the Aquatic Ecosystem of the High-Mountain Lake Markakol (Kazakhstan): First Observations and Conclusions

Applied Sciences
The primary data of micro- and macroplastics in the aquatic environment of Lake Markakol, located in the mountainous area of East Kazakhstan, are presented.
Azamat Madibekov, Laura Ismukhanova, Christian Opp, Botakoz Sultanbekova, Askhat Zhadi, Serik Zhumatayev, Aisha Madibekova   +6 more
doaj   +1 more source

Age and Land Use as Factors Differentiating Hydrochemistry and Plant Cover of Astatic Ponds in Post-Agricultural Landscape

Journal of Water and Land Development, 2014
Small, astatic ponds are important features of post-glacial landscape, which support heterogeneity and biodiversity of agricultural areas. In the presented research we explored differences in hydrochemistry and plant cover of 20 small ponds located in ...
Mętrak Monika, Pawlikowski Paweł, Suska-Malawska Małgorzata   +2 more
doaj   +1 more source

Isotopic constraints on active nitrification in a eutrophic artificially oxygenated lake: Implications for nitrate regeneration and nitrous oxide production

Limnology and Oceanography, Volume 71, Issue 1, January 2026.
Abstract Nitrification is a key process in the aquatic nitrogen (N) cycle, but its products, nitrate (NO3−) and nitrous oxide (N2O), contribute to eutrophication and greenhouse gas emissions, particularly in eutrophic lakes. Variations in in‐lake N cycling and N2O production pathways, as a function of seasonality and artificial oxygenation, remain ...
Alessandra Mazzoli, Claudia Frey, Cameron M. Callbeck, Jakob Zopfi, Teresa Einzmann, Chiara Piantoni, Tim J. Paulus, Moritz F. Lehmann   +7 more
wiley   +1 more source

Microbial nitrogen removal and recycling in the redox transition zone of a meromictic lake and its coupling to sulfur cycling

Limnology and Oceanography, Volume 71, Issue 1, January 2026.
Abstract Organotrophic denitrification is an important nitrogen (N) removal process in lakes, but alternative N reduction processes such as lithotrophic sulfur (S)‐oxidizing denitrification may be greatly underappreciated. We studied the redox transition zone (RTZ) in the meromictic water column of the North Basin of Lake Lugano (Switzerland) to ...
Jana Tischer, Moritz F. Lehmann, Guangyi Su, Fabio Lepori, Jakob Zopfi   +4 more
wiley   +1 more source

Quantifying Atmospheric Humidity in the Western Mediterranean During the Iron Age and the Roman Era

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract Atmospheric moisture is a key hydroclimatic parameter that influenced ancient societies, agriculture, and ecosystems. However, quantitative constraints on pre‐industrial atmospheric humidity values are rarely available. Here, the triple oxygen (17O/16O and 18O/16O) and hydrogen (2H/1H) isotope compositions of lacustrine gypsum are used to ...
Fernando Gázquez, Claudia Voigt, Aurora Castillo‐Baquera, Antonio García‐Alix, Gonzalo Jiménez‐Moreno, Francisco Jíménez‐Espejo, Lucía Martegani, Marta Rodrigo‐Gámiz, Alejandro Jiménez‐Bonilla, Miguel Rodríguez‐Rodríguez   +9 more
wiley   +1 more source

Hydrodynamic and hydrochemistry behavior of the Barreiras-Jandaíra-Açu aquifer system in the area of fazenda Belém, west of the Potiguar Basin, CE

Revista Águas Subterrâneas, 2017
The evaluation of the hydrodynamic and hydrochemistry behaviour of the aquifers in areas under the influence of the oil exploration activity, are essential to the protection and management of the groundwater resource. The aim of this study was to analyse
Maurilo Gonçalves Braga Junior, José Geraldo de Melo, José Braz Diniz Filho   +2 more
doaj   +1 more source

Groundwater Flow Systems as Key Determinants of Groundwater‐Dependent Vegetation Distribution

Ecohydrology, Volume 18, Issue 8, December 2025.
ABSTRACT Direct investigations of the connection between groundwater flow systems across multiple scales and groundwater‐dependent ecosystems (GDEs) remain rare. Such studies offer valuable insights into the complex and scale‐dependent relationships between groundwater dynamics and vegetation patterns.
Szilvia Simon, Brigitta Czauner, Viktor Balogh, Judit Mádl‐Szőnyi, Marianna Biró   +4 more
wiley   +1 more source

Characterisation of tire wear particles and their chemical markers: A case study along a German highway

Case Studies in Chemical and Environmental Engineering
This case study investigates tire wear particles (TWP) and their chemical markers (6PPD-Q, DPG, 2-OHBT) in road dust and roadside soils along a German highway.
Faith Chebet Tumwet, Karin Fester, Stanislava Vrchovecká, Traugott Scheytt   +3 more
doaj   +1 more source

Spatial dynamics of animal‐mediated nutrients in temperate waters

Limnology and Oceanography, Volume 70, Issue 12, Page 3650-3662, December 2025.
Abstract Consumer‐mediated nutrient dynamics (CND), through which animals' metabolic waste products fertilize primary producers, drive variability in nutrient availability in tropical waters. This variability influences primary productivity and community functioning.
Em G Lim, Claire M Attridge, Kieran D Cox, Jasmin M Schuster, Kiara R Kattler, Emily J Leedham, Bridget Maher, Andrew L Bickell, Francis Juanes, Isabelle M Côté   +9 more
wiley   +1 more source

The Hydrochemical Genesis Mechanism of Shallow Groundwater in the Kaifeng Section of the Lower Yellow River

JAWRA Journal of the American Water Resources Association, Volume 61, Issue 6, December 2025.
ABSTRACT The lower Yellow River is a key watershed between the Haihe and Huaihe Rivers. The Kaifeng section, as a key river segment, holds significant geographical and ecological importance, and studying its shallow groundwater hydrochemistry is crucial for sustainable groundwater use.
Xingxing Du, Xiangxiang Cui, Shan Lei, Xueqing Zhang, Suhua Meng, Kun Liu   +5 more
wiley   +1 more source