Isotopic composition of nitrogen species in groundwater under agricultural areas: a review

O Nikolenko, A Jurado, AV Borges, K Knӧller… - Science of the Total …, 2018 - Elsevier
This work reviews applications of stable isotope analysis to the studies of transport and
transformation of N species in groundwater under agricultural areas. It summarizes evidence …

Denitrification and N2O: N2 production in temperate grasslands: Processes, measurements, modelling and mitigating negative impacts

S Saggar, N Jha, J Deslippe, NS Bolan, J Luo… - Science of the Total …, 2013 - Elsevier
In this review we explore the biotic transformations of nitrogenous compounds that occur
during denitrification, and the factors that influence denitrifier populations and enzyme …

Pathways of N2O production by marine ammonia-oxidizing archaea determined from dual-isotope labeling

XS Wan, L Hou, SJ Kao, Y Zhang… - Proceedings of the …, 2023 - National Acad Sciences
The ocean is a net source of the greenhouse gas and ozone-depleting substance, nitrous
oxide (N2O), to the atmosphere. Most of that N2O is produced as a trace side product during …

Identification of sources and transformations of nitrate in the **jiang River using nitrate isotopes and Bayesian model

C Li, SL Li, FJ Yue, J Liu, J Zhong, ZF Yan… - Science of the Total …, 2019 - Elsevier
Coupled nitrogen and oxygen isotopes of nitrate have proven useful in identifying nitrate
sources and transformation in rivers. However, isotopic fractionation and low-resolution …

[HTML][HTML] Enhanced ocean oxygenation during Cenozoic warm periods

A Auderset, S Moretti, B Taphorn, PR Ebner, E Kast… - Nature, 2022 - nature.com
Dissolved oxygen (O2) is essential for most ocean ecosystems, fuelling organisms'
respiration and facilitating the cycling of carbon and nutrients. Oxygen measurements have …

Electron shuttles enhance anaerobic ammonium oxidation coupled to iron (III) reduction

GW Zhou, XR Yang, H Li, CW Marshall… - Environmental …, 2016 - ACS Publications
Anaerobic ammonium oxidation coupled to iron (III) reduction, termed Feammox, is a newly
discovered nitrogen cycling process. However, little is known about the roles of electron …

Tracing anthropogenic inputs of nitrogen to ecosystems

C Kendall, EM Elliott, SD Wankel - Stable isotopes in ecology …, 2007 - Wiley Online Library
Nitrate (NO3−) concentrations in public water supplies have risen above acceptable levels
in many areas of the world, largely as a result of overuse of fertilizers and contamination by …

[KNIHA][B] Geomicrobiology

HL Ehrlich, DK Newman - 2008 - taylorfrancis.com
Uncovers the Key Role Microbes Play in the Transformation of Oxidizable and Reducible
MineralsMany areas of geomicrobial processes are receiving serious attention from …

Tracking nonpoint source nitrogen pollution in human-impacted watersheds

SS Kaushal, PM Groffman, LE Band… - … science & technology, 2011 - ACS Publications
Nonpoint source nitrogen (N) pollution is a leading contributor to US water quality
impairments. We combined watershed N mass balances and stable isotopes to investigate …

Present limitations and future prospects of stable isotope methods for nitrate source identification in surface-and groundwater

D Xue, J Botte, B De Baets, F Accoe, A Nestler… - Water research, 2009 - Elsevier
Nitrate (NO3−) contamination of surface-and groundwater is an environmental problem in
many regions of the world with intensive agriculture and high population densities …