Results 1 to 10 of about 77,164 (309)

Potential and limits of stable isotopes (δ18O and δD) to detect parasitic water in sewers of oceanic climate cities

open access: yesJournal of Hydrology: Regional Studies, 2018
Study region: Brussels (Belgium) and Nantes (France), two cities located in oceanic settings. Study focus: The article assesses the capabilities of detecting the presence of groundwater in sewers and waste-water in storm sewers (also called parasitic ...
K. De Bondt   +5 more
doaj   +1 more source

Stable Isotopes and Trace Elements

open access: yes, 2011
The stable isotopic and trace element compositions of coral skeletons provide a wealth of information about past environmental conditions in reef settings. Interpretation of existing proxies continues to be refined, while the development of new proxies is shedding light on a range of environmental parameters.
Gagan, Michael, Abram, Nerilie
openaire   +4 more sources

Joint control of precipitation and CO2 on global long-term patterns of plant nitrogen availability

open access: yesNature Communications
Plant nitrogen availability critically limits plant growth and thus constrains terrestrial carbon sequestration. Growing evidence points to a recent decline in plant nitrogen availability, yet the global consistency of this trend and its underlying ...
Songbo Tang   +3 more
doaj   +1 more source

Winter carry-over effects on spring body condition driven by agricultural subsidies to Lesser Snow Geese (Anser caerulescens caerulescens)

open access: yesAvian Conservation and Ecology, 2020
Anthropogenic changes to landscapes associated with intensive agriculture often have deleterious effects on avian abundance. However, some species like the Lesser Snow Goose (Anser caerulescens caerulescens), can benefit from increases in agricultural ...
Drew N. Fowler   +3 more
doaj  

Bioavailability of different sources and doses of zinc using stable isotopes in weaned male Holstein calves

open access: yesJournal of Dairy Science
: Trace minerals are an important component of ruminant nutrition. Furthermore, understanding the bioavailability of various trace mineral sources is essential for accurate dietary formulation. The objective of this trial was to determine the suitability
H.A. Tucker
doaj   +1 more source

Climate and landscape control of runoff stable isotopes in the inland mountain

open access: yesJournal of Hydrology: Regional Studies
Study region: The Xiying River Basin is a typical inland mountainous watershed located in the Qilian Mountains. Study focus: This article reveals the change of runoff stable isotopes and their control mechanisms based on isotope data of different water ...
Xinrui Lin   +10 more
doaj   +1 more source

Modelling stable water isotopes: Status and perspectives

open access: yesEPJ Web of Conferences, 2010
Modelling of stable water isotopes H2 18O and HDO within various parts of the Earth’s hydrological cycle has clearly improved our understanding of the interplay between climatic variations and related isotope fractionation processes.
Werner M.
doaj   +1 more source

On the Geochemical Studies of Stable Isotopes

open access: yesJournal of the Mass Spectrometry Society of Japan, 1964
The sum of the geochemical cycle of each element should have an average equal to its primary value. Therefore, it should be possible to obtain an isotopic balance for eache lementin the crust. The parameters involved are: the concentration of these elements in the igneous, sedimentary and marine divisions of the crust, the amounts of each environment ...
openaire   +4 more sources

Progress of Analytical Techniques and Application of Triple Oxygen Isotopes in Dissolved Oxygen

open access: yesJournal of Isotopes
Oxygen is one of the essential elements in Earth's ecosystem,with stable isotopes including δ16O,δ17O,and δ18O. The composition of oxygen stable isotopes (δ17O,δ18O) exhibits different fractionation patterns in various biogeochemical reactions,making ...
Hongmin ZHENG   +3 more
doaj   +1 more source

Stable hydrogen isotope in tropical bat hair and the Asian isoscape: A dataset to advance migration research

open access: yesScientific Data
Stable hydrogen isotope analysis is an emerging technique in ecological studies, provides an approach to understand animal migration, and provides locality information for wildlife forensics.
Ada Chornelia, Alice C. Hughes
doaj   +1 more source

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