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Yinan Mao, Qingyun Ma, Jiaxin Lin, Ye Chen and Qiang Shu
In this study, total organic carbon (TOC), total nitrogen (TN), and stable carbon isotopes (d13C) were measured in surface intertidal saltmarsh and bare tidal flat sediments along the Rudong coast. The distribution and sources of organic carbon were exam...
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Irene Raya-Moreno, Rosa Cañizares, Xavier Domene, Vicenç Carabassa and Josep Maria Alcañiz
The goal of this study was to evaluate biochar?s resistance to microbial decomposition and its impact on native soil organic matter (SOM) decomposition. Conducted in a vineyard with a sandy loam Mediterranean soil with neutral pH and low organic carbon c...
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Mikhail S. Golubkov, Vera N. Nikulina, Alexei V. Tiunov and Sergey M. Golubkov
Knowledge of carbon and nitrogen isotopic ratios in organic matter and their changes is important when studying nutrient cycles in aquatic ecosystems. Relationships between d13C and d15N values of suspended particulate organic matter (POM), water tempera...
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Pham Van Hieu, Nguyen Thi Hoang Ha, Luu Viet Dung and Koji Omori
Mangrove forests are important in providing habitats for complex communities of terrestrial and marine fauna. Moreover, they are recognized as highly productive ecosystems in providing nutrients to mangrove food webs or exporting them to nearby coastal w...
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Elissavet Dotsika, Georgios Diamantopoulos, Spyridon Lykoudis, Sofia Gougoura, Elena Kranioti, Petros Karalis, Dimitra Michael, Eleni Samartzidou and Emmanouil Palaigeorgiou
We review the stable isotopic data of recovered Greek bones from the Early Neolithic to the Late Bronze period in order to examine dietary changes over time. As an isotopic baseline we use the published fauna data of the periods. The analysis revealed a ...
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Olga Khokhlova and Tatyana Myakshina
The work is aimed at the analysis of carbonate dynamics in soils under different land use. The studied area is located in the forest steppe - of the Central Russian Upland. Soils were sampled at four sites: a broadleaf forest, an adjacent 50-year continu...
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Olga Khokhlova and Tatyana Myakshina
The work is aimed at the analysis of carbonate dynamics in soils under different land use. The studied area is located in the forest steppe - of the Central Russian Upland. Soils were sampled at four sites: a broadleaf forest, an adjacent 50-year continu...
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Nikita Tananaev, Vladislav Isaev, Dmitry Sergeev, Pavel Kotov and Oleg Komarov
Hydrochemical and geophysical data collected during a hydrological survey in September 2017, reveal patterns of small-scale hydrological connectivity in a small water track catchment in the north-European Arctic. The stable isotopic composition of water ...
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Tomasz Gruszczynski, Jerzy J. Malecki, Anastasiia Romanova and Maciej Ziulkiewicz
Studies with application of stable isotopes of oxygen and carbon have been performed on calcareous tufa, groundwater and dissolved inorganic carbon (DIC) from the spring mire cupola in Wardzyn. This study was focused on the verification of the a priori h...
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Kate Andrzejewski, Neil Tabor, Dale Winkler and Timothy Myers
Pedogenic carbonate samples collected from three Lower Cretaceous (Aptian?Albian) fossil localities in Texas and Oklahoma were analyzed to develop paleoatmospheric pCO2 estimates by measuring the stable carbon isotopes of pedogenic calcite and their co-e...
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Roberta Piscia, Emanuela Boggio, Roberta Bettinetti, Michela Mazzoni and Marina Manca
Interest in Stable Isotopes Analyses (SIA) is increasing in freshwater ecology to better clarify ecosystems? functioning. By measuring carbon and nitrogen isotopic signatures, food sources and organism trophic levels can be tracked, providing quantitativ...
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Peter W. Swarzenski, Mark Baskaran, Robert J. Rosenbauer, Brian D. Edwards and Michael Land
Stable and radioactive tracers were utilized in concert to characterize geochemical processes in a complex coastal groundwater system and to provide constraints on the kinetics of rock/water interactions. Groundwater samples from wells within the Domingu...
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Ronald W. Klusman
Monitoring of potential gas seepage for CO2 sequestration and CO2-EOR (Enhanced Oil Recovery) in geologic storage will involve geophysical and geochemical measurements of parameters at depth and at, or near the surface. The appropriate methods for MVA (M...
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Rossana Caroni, Roberta Piscia, Gary Free and Marina Manca
The purpose of this study was to elucidate the patterns and mechanisms driving seasonal and interannual variations of carbon and nitrogen stable isotopes in the zooplankton crustacean community of Lake Maggiore (Italy), during the period 2009?2020. Diffe...
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Xinyi Wang, Weifang Qiao, Jing Chen, Xiaoman Liu and Fang Yang
Geothermal water samples taken from deep aquifers within the city of Kaifeng at depths between 800 and 1650 m were analyzed for conventional water chemical compositions and stable isotopes. These results were then combined with the deuterium excess param...
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Tanja G M Sanders, Ingo Heinrich, Björn Günther and Wolfgang Beck
Intrinsic water use efficiency (WUEi) in trees is an indication of the ratio of carbon assimilation to the rate of transpiration. It is generally assumed that it is a response to water availability. In agricultural research, the question of drought toler...
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Stefano Conti, Claudio Argentino, Chiara Fioroni, Aura Cecilia Salocchi and Daniela Fontana
The natural emission of methane-rich fluids from the seafloor, known as cold seepage, is a widespread process at modern continental margins. The studies on present-day cold seepages provide high-resolution datasets regarding the fluid plumbing system, bi...
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Emma L. Jackson, Nathan B. English, Andrew D. Irving, Andrew M. Symonds, Gordon Dwane, Owen T. Nevin and Damien T. Maher
Maintenance dredging for shipping channels is required to maintain safe and efficient navigational channels and berths in ports around the world. Sediment that refills dredged channels can enter ports via alluvial transport of eroded materials from upstr...
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Jian Gao, Ping Zhong, Jiajia Ning, Zhengwen Liu, Erik Jeppesen
Pág. 1 - 21
Studies suggest that, unlike the situation in temperate lakes, high biomasses of omnivorous fish are maintained in subtropical and tropical lakes when they shift from a turbid phytoplankton-dominated state to a clear water macrophyte-dominated state, and...
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Jian Gao, Ping Zhong, Jiajia Ning, Zhengwen Liu and Erik Jeppesen
Studies suggest that, unlike the situation in temperate lakes, high biomasses of omnivorous fish are maintained in subtropical and tropical lakes when they shift from a turbid phytoplankton-dominated state to a clear water macrophyte-dominated state, and...
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