Results 81 to 90 of about 24,017 (211)

Stable Nitrogen Isotopes in a Forested Watershed in Taiwan

open access: yesJournal of Forest and Environmental Science, 2013
Abstract Differences in rates and patterns of nitrogen cycling have been correlated with nitrogen stable isotope measurements in forest ecosystems of tropical and temperate regions, but limited similar work has been conducted in sub-tropical forests. This study investigated patterns in stable N isotopic composition in a subtropical forest in Taiwan by ...
openaire   +2 more sources

CHARACTERIZATION OF NITROGEN AND CARBON STABLE ISOTOPES IN EPIPHYTIC FORAMINIFERAL MORPHOTYPES

open access: yesThe Journal of Foraminiferal Research, 2016
Epiphytic foraminifera are important components of the seagrass-meadow biota. These foraminifera previously were categorized, based upon their ecological and feeding strategies, into four morphotypes that were subsequently modified to include a new morphotype for the symbiont-bearing foraminifera.
Mateu, G. (Guillermo)   +4 more
openaire   +3 more sources

Complexities of Nitrogen Isotope Biogeochemistry in Plant-Soil Systems: Implications for the Study of Ancient Agricultural and Animal Management Practices

open access: yesFrontiers in Plant Science, 2014
Nitrogen isotopic studies have potential to shed light on the structure of ancient ecosystems, agropastoral regimes, and human-environment interactions.
Paul eSzpak
doaj   +1 more source

Otolith chemistry, stomach contents and stable isotope analysis of a snapper (Pagrus auratus) caught in the Waikato River at Ngaruawahia [PDF]

open access: yes, 2009
Analyses of stomach contents, stable isotopes and otolith microchemistry were carried out in order to ascertain the length of freshwater residence of a snapper (Pagrus auratus) caught in the Waikato River at Ngaruawahia in a net set for grey mullet(Mugil
Hicks, Brendan J., Blair, Jennifer Marie
core  

Nitrogen transformation pathways, rates, and isotopic signatures in Lake Lugano [PDF]

open access: yes, 2014
The consequences of detrimental alterations caused to the natural nitrogen (N) cycle are manifold. To tackle problems, such as eutrophication of coastal marine and lacustrine environments, or increasing emissions of greenhouse gas nitrous oxide (N2O ...
Wenk, Christine B.
core   +1 more source

Cycad forensics: tracing the origin of poached cycads using stable isotapes, trace element concentrations and radiocarbon dating techniques [PDF]

open access: yes, 2013
In South Africa, the greatest threat to cycad populations is the illegal removal of wild plants for landscaping purposes and collector's gardens, resulting in declining populations that are already threatened with extinction.
Retief, Kirsten
core  

Carbon nitrogene and stable isotopes of sediment core IOW211660-6 [PDF]

open access: yes, 1999
Carbon nitrogene and stable isotopes of sediment core IOW211660-
Ulrich Struck (6973964)   +3 more
core   +1 more source

Application of Stable Isotopes in Identifying the Sources and Formation of Sulfate and Nitrate in PM2.5: A Review

open access: yesAtmosphere
Sulfate and nitrate are important components of atmospheric PM2.5, which is the main contributor of haze. Therefore, studying the sources and formation mechanisms of atmospheric sulfate and nitrate is very important for the prevention and control of haze
Jiamei Peng   +5 more
doaj   +1 more source

Organic produce and production system conformity assessments : eggs and isotope analysis [PDF]

open access: yes, 2008
Eggs were analysed for stable isotope composition, as a measure for organic produce ...
van Ruth, S.M.   +2 more
core  

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