Results 21 to 30 of about 34,135 (304)

Application of Nitrogen and Oxygen Isotopes for Source and Fate Identification of Nitrate Pollution in Surface Water: A Review

Applied Sciences, 2018
Nitrate pollution in surface water has become an environmental problem of global concern. The effective way for controlling the nitrate pollution of surface water is to identify the pollution source and reduce the input of nitrate.
Yan Zhang, Peng Shi, Jinxi Song, Qi Li
doaj   +1 more source

Seabird Modulations of Isotopic Nitrogen on Islands

PLoS ONE, 2012
The transport of nutrients by migratory animals across ecosystem boundaries can significantly enrich recipient food webs, thereby shaping the ecosystems' structure and function. To illustrate the potential role of islands in enabling the transfer of matter across ecosystem boundaries to be gauged, we investigated the influence of seabirds on nitrogen ...
Caut, Stéphane, Angulo, Elena, Pisanu, Benoît, Ruffino, Lise, Faulquier, Lucie, Lorvelec, Olivier, Chapuis, Jean-Louis, Pascal, Michel, Vidal, Eric, Courchamp, Frank   +9 more
openaire   +10 more sources

Dataset for analyzing and modelling the eutrophication processes in groundwater-coastal lagoon systems: The La Pletera lagoons case study (NE Spain)

Data in Brief, 2023
A comprehensive hydrogeological report was conducted to determine the origin, occurrence and processes affecting nitrogen in a Mediterranean coastal aquifer-lagoon system.
A. Menció, E. Madaula, W. Meredith, X. Casamitjana, X.D. Quintana   +4 more
doaj   +1 more source

Estimates of woody biomass and mixed effects improve isoscape predictions across a northern mixed forest

Frontiers in Ecology and Evolution, 2023
Contemporary methods used to predict isotopic variation at regional scales have yet to include underlying distributions of the abundance of isotopic substrates.
John L. Berini, John L. Berini, Bryan Runck, Jody Vogeler, David L. Fox, James D. Forester, James D. Forester   +6 more
doaj   +1 more source

Measurement of proton-distribution radii of neutron-rich nitrogen isotopes [PDF]

EPJ Web of Conferences, 2019
Measurement of root-mean-square radii of proton distributions of 17–22N from charge-changing cross section shows the emergence of thick neutron skin towards the neutron-drip line.
Bagchi Soumya, Kanungo Rituparna, Horiuchi Wataru, Hagen Gaute, Morris Titus D., Stroberg Steven Ragnar, Suzuki Toshio, Ameil Frederic, Atkinson Joel, Ayyad Yassid, Cortina-Gil Dolores, Dillmann Iris, Estradé Alfredo, Evdokimov Alexey, Farinon Fabio, Geissel Hans, Guastalla Giulia, Janik Rudolf, Kaur Satbir, Knöbel Ronja, Kurcewicz Jan, Litvinov Yury, Marta Michele, Mostazo Magdalena, Mukha Ivan, Nociforo Chiara, Ong Hooi Jin, Pietri Stephane, Prochazka Andrej, Scheidenberger Christoph, Sitar Branislav, Strmen Peter, Takechi Maya, Tanaka Junki, Tanaka Yoshiki, Tanihata Isao, Terashima Satoru, Vargas Jossitt, Weick Helmut, Winfield John Stuart   +39 more
doaj   +1 more source

Stable Isotopes Unveil Dietary Trends in the Samnite and Peligni Communities of Opi Val Fondillo and Sulmona S. Lucia (V–VI Centuries BCE, Abruzzo, Central Italy)

Biology, 2023
The purpose of this study is to gain insights into the subsistence activities and nutrition of the Samnite and Peligni populations who lived in the Abruzzo region (Italy) during the Iron Age. The samples under investigation are from Opi Val Fondillo (AQ)
Iuri Icaro, Inmaculada Alemán, Joan Viciano   +2 more
doaj   +1 more source

Different Responses in Root Water Uptake of Summer Maize to Planting Density and Nitrogen Fertilization

Frontiers in Plant Science, 2022
Modifying farming practices combined with breeding has the potential to improve water and nutrient use efficiency by regulating root growth, but achieving this goal requires phenotyping the roots, including their architecture and ability to take up water
Yang Gao, Jinsai Chen, Guangshuai Wang, Zhandong Liu, Weihao Sun, Yingying Zhang, Xiaoxian Zhang   +6 more
doaj   +1 more source

The fate of nitrogen in the Zarin-Gol River receiving trout farm effluent

Scientific Reports, 2023
This study investigated the Zarrin-Gol River ecosystem in Iran to trace organic matter in the food web and evaluate the impact of aquaculture farm effluent using stable isotopes of nitrogen (δ15N) and carbon (δ13C).
Altin Ghojoghi, Rasoul Ghorbani, Rahman Patimar, Abdolrassoul Salmanmahiny, Rahmat Naddafi, Abdolazim Fazel, Timothy D. Jardine   +6 more
doaj   +1 more source

Marine sediment nitrogen isotopes and their implications for the nitrogen cycle in the sulfate-methane transition zone

Frontiers in Marine Science, 2023
IntroductionRecent work has proposed that the nitrogen isotopes in marine sediments can be impacted by anaerobic oxidation of methane (AOM), since nitrogen uptake by anaerobic methanotrophic archaea (ANME) modifies the nitrogen isotope compositions of ...
Xin Yang, Xin Yang, Yihao Zhang, Yihao Zhang, Xiaoming Sun, Xiaoming Sun, Xiaoming Sun, Li Xu, Li Xu, TingTing Chen, TingTing Chen   +10 more
doaj   +1 more source

Zinc Isotope Ratios as Indicators of Diet and Trophic Level in Arctic Marine Mammals.

PLoS ONE, 2016
Carbon and nitrogen stable isotope ratios of bone collagen are an established method for dietary reconstruction, but this method is limited by the protein preservation.
Klervia Jaouen, Paul Szpak, Michael P Richards   +2 more
doaj   +1 more source