Dissolved organic carbon composition
Contrasting composition of terrigenous organic matter in the dissolved, particulate and sedimentary organic carbon pools on the outer East Siberian Arctic Shelf
... “young” and fresh vascular plant material. The older and more enriched δ 13 C signatures in the E-ESS and its higher POC and SOC concentrations suggest a greater influence of sea-ice coverage and the Pacific inflow. ...
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Coral cavities are sinks of dissolved organic carbon (DOC)
... in composition and quality of DOC. The composition of the DOM pool is very diverse with a size range of low- molecular-weight organic molecules like amino acids, to high-molecular-weight molecules ...
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Dissolved organic carbon concentrations under conditions of different forestcomposition
... 1999; Zhang et al. 2004). The study deals with the evaluation of the concentration of DOC in lysimetric water sampled from forest stands of various species composition in the Drahanská vrchovina Upland. At the ...
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Explorations of soil microbial processes driven by dissolved organic carbon
... the composition of the microbial community (Ettema and Wardle, 2002; Marschner, 2003; Rousk et ...found organic C quality and microbial biomass were, respectively, the most influential edaphic properties of ...
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Microbial Community Structure Affects Marine Dissolved Organic Matter Composition
... global carbon cycle, affecting both the reduction of inorganic carbon and the remineralization of reduced organic compounds back to carbon ...marine dissolved organic matter ...
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Seasonal variations in concentration and lability of dissolved organic carbon in Tokyo Bay
... bioavailable dissolved organic carbon (DOC) and their seasonal varia- tions were investigated at three stations in Tokyo Bay, Japan, and in two freshwater sources flowing into the ...and ...
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Carbon isotopic characterisation of dissolved organic mater during water treatment
... higher organic matter concentrations. Organic matter removal at WTWs is necessary, yet complex, and oc- curs in the clarification, filtration and adsorption stages of ...water organic matter (for ...
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Nitrogen effects on the pelagic food web are modified by dissolved organic carbon
... As a consequence, zooplankton growth and FWE will be impaired. However, with increasing DOC concentrations, the negative effects of N fertilization on phytoplankton stoi- chiometry will become smaller, since nutrient ...
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Exploring how land use may influence the export, composition, and reprocessing of dissolved organic carbon in peat-rich catchment drainage
... Considering the similar soil types and climatic conditions within this small catchment, the different land uses may be linked to the opposite DOC composition changes when stream water flow was lower. As discussed ...
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Temporal changes in photoreactivity of dissolved organic carbon and implications for aquatic carbon fluxes from peatlands
... The primary aim of this study was to assess temporal vari- ation in the photochemical lability of DOC from two con- trasting aquatic systems draining peatlands and to understand how this variation may impact aquatic C ...
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The composition and distribution of semi labile dissolved organic matter across the southwest Pacific
... Aluwihare, L. I., Repeta, D. J., and Chen, R. F.: A major biopoly- meric component to dissolved organic carbon in seawater, Na- ture, 387, 166–167, 1997. Benavides, M., Shoemaker, K. M., Moisander, ...
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Composition, Sources, and Age of Dissolved and Particulate Organic Matter in the Delaware River and Estuary
... f dissolved organic matter (DOM) and particulate organic matter (POM) along the salinity gradient using stable carbon and nitrogen isotopes (Cifuentes, et ...major organic matter inputs ...
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Seasonal hydrology drives rapid shifts in the flux and composition of dissolved and particulate organic carbon and major and trace ions in the Fraser River, Canada
... weight composition (Rochelle-Newall and Fisher, ...DOM composition within these tributary basins would be needed to better constrain this potential source of DOM to the main stem ...
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Mineral fertilizer and manure effects on leached inorganic nitrogen, nitrate isotopic composition, phosphorus, and dissolved organic carbon under furrow irrigation
... Isotopic composition of deep-leached nitrate indicates that both transformation and biologic cycling of mineral and manure N are rapid in these soils, which, with percolation volume, influence the amounts of NO 3 ...
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dissolved organic carbon
... Our major objectives are to determine whether plant pigments can be used as effective biomarkers to trace the dominant sources of HMW DOC in the Gulf of Mexico,[r] ...
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Dissolved organic carbon and biodegradable dissolved organic carbon determination in river water of the Strug Basin
... %BDOC recorded by Fellman et al. [19] in three watersheds in Alaska ranged between 7 and 38%. The present study demonstrated that DOC and BDOC concentrations varied depending on season. This was due to both accelerated ...
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The marine biogeochemistry of dissolved organic carbon and dissolved organic nutrients in the Atlantic Ocean
... 4. CONCLUSIONS The combined HTC TOC-NCD system provided excellent linearity and precision. The results of deep oceanic water CRMs for the system showed a good agreement with the certified values. TOC control software was ...
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Dissolved organic carbon and dissolved nitrogen in soil under different fertilization treatments
... of dissolved organic carbon (DOC) and dissolved nitrogen (DNt) down to deeper layers of the soil ...labile organic matter in the 0–25 and 25–50 cm layers of ...
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Comparison of extractable soil carbon and dissolved organic carbon by their molecular characteristics
... of organic carbon similar to the HS in DOC we obtained by soil extraction in CaCl 2 , where the M r and M w approximate values were ...of organic carbon extracted from soils among ...
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Dissolved organic carbon (DOC) in Arctic ground ice
... with carbon and ion ...and organic matter that originate from surface soils and vegetation debris that was carried along with the meltwater into the frost crack ...out carbon as it trickles down- ...
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