Carbon isotope anomaly in the major plant C-1 pool and its global biogeochemical implications [PDF]
, 2004 We report that the most abundant C-1 units of terrestrial plants, the methoxyl groups of pectin and lignin, have a unique carbon isotope signature exceptionally depleted in C-13.
Kalin, R. +4 more
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Stable isotopes in stratospheric carbon monoxide [PDF]
, 2021 The isotopes of an element provide a wealth of information for the chemistry and transport of trace gases in the atmosphere. In this work, the isotope composition of carbon and oxygen in carbon monoxide is used to gain new insights on transport and chemistry related to methane oxidation in the stratosphere.
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Biogeochemistry of Stable Carbon Isotopes [PDF]
, 1969 In 1947, in his classical paper on the thermodynamic properties of isotopic substances, H. C. Urey [1] laid the foundation of modern isotope geochemistry. At the same time, A. O. Nier [2] designed a new mass spectrometer which allowed the measurement of small differences in isotope abundance ratios. A modification in the Nier-type mass spectrometer and
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The geochemical and isotopic carbon cycle in an urban pond in the City of Wroclaw
Limnological Review, 2018 The aim of this study was a recognition of the carbon cycle in a small anthropogenic reservoir located in Wrocław (SW Poland). The research investigated the geochemical processes and isotopic interactions in the water column as well as those between the ...
Drzewicki Wojciech +2 more
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Frontiers in Ecology and Evolution, 2016 We have known about the processes of methanogenesis and methanotrophy for over 100 years, since the days of Winogradsky, yet their contributions to the carbon cycle were deemed to be of negligible importance for the majority of that period. It is only in
Jonathan eGrey
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Journal of Threatened Taxa, 2020 The penaeid shrimp Xiphopenaeus kroyeri is the second most important species of crustacean in Brazilian fisheries. Stable isotopes of carbon and nitrogen are chemical proxies to provide quantitative information about the consumer isotopic niche, which is
Keltony de Aquino Ferreira +2 more
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Environmental controls on the stable isotopic composition of Mercenaria mercenaria: Potential application to paleoenvironmental studies [PDF]
, 2003 We have investigated the environmental controls of seasonally resolved records of oxygen and carbon isotopes of modern Mercenaria mercenaria bivalves collected live from five coastal sites along the east coast of North America.
Linsley, B. K. +3 more
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Ecological Indicators, 2021 The stable and radioactive isotopes (δ13C, Δ14C and δ2H) of black carbon (BC) and polycyclic aromatic hydrocarbons (PAHs) in the sediment from the western coastal areas of the Yellow Sea (i.e.
Yipeng Wang +13 more
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A method to detect soil carbon degradation during soil erosion [PDF]
, 2009 Soil erosion has been discussed intensively but controversial both as a significant source or a significant sink of atmospheric carbon possibly explaining the gap in the global carbon budget.
Conen, F. +5 more
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Ancient Modeling of Hydrology Based on Comparison of δo18 Carbonate and the δo13 Crbonate Parishan Lake (Fars Province) Dariush Noorollahi M.Sc Climatology University of Shahid Beheshti Dr. Hassan Lashkari Associate Profesor of Natural Geography University of Shahid Beheshti Maria Amirzade Faculty of Earth science University of Shahid Beheshti [PDF]
جغرافیا و توسعه, 2012 Geography and Development 10nd Year - No. 29 - Winter 2013 Received : 31/1/2012 Accepted : 17/7/2012 PP: 28 - 31 Ancient Modeling of Hydrology Based on Comparison of δo18 Carbonate and the δo13 Crbonate Parishan Lake (Fars Province) Dariush ...
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