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539 results for “organic carbon”
The effect of intensive oyster aquaculture on the regional organic carbon burial: insights from a half-century historical record
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Impact of deadwood decomposition on soil organic carbon sequestration in Estonian and Polish forests
<p>Data for publication.</p>
Data for Simulation of Particulate Organic Carbon transport in the Pearl River Estuarine-Coastal Ocean, South China Sea following Typhoon Hato and Pakhar (2017)
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Files associated with Rui Jin, Anand Gnanadesikan and Christopher Holder, Using Random Forests to Compare the Sensitivity of Observed Particulate Inorganic and Particulate Organic Carbon to Environmental Conditions
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Computational results for the publication "Carbon dioxide capture from open air using covalent organic frameworks".
<p>This upload contains the computationally obtained adsorption structures of COF-999 series.</p>
Enhanced light absorption for solid-state brown carbon from wildfires due to organic and water coatings
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Divergent responses of Organic Carbon to Sedimentary Environment Transformation in a River-dominated Marginal Sea
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Supplementary information_Limited organic carbon burial by the rusty carbon sink in Swedish fjord sediments.
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Global Prediction Of Total Organic Carbon In Marine Sediments Using Deep Neural Networks (nn-toc) v2
<p>This is the second version that was uploaded to make the code available for the paper submission <strong><span>NN-TOC v1: global prediction of total organic carbon in marine sediments using deep neural networks</span></strong> to the Geoscientific Model Development journal. Here we create a deep neural network based approach for the geospatial predicition of total organic carbon percentages in marine sediments.</p> <p><span>The data folder contains "raw" features and labels, "interim" data for preprocessed features and labels and "output"s produced from the model. While the preprocessed folder contain all the other files that can be produced by running the code. The features are in .nc or .grd file format. The other files are in .xyz or .csv file format.</span></p> <p> </p>
Evaluation of a microplate spectrophotometer for soil organic carbon determination in south central Idaho
<p>Determination of soil organic carbon (SOC) is highly desirable for assessing fertility and carbon sequestration; however, numerous methods of determination warrant study of method agreement. Recently, a novel method was developed following dichromate oxidation using a microplate spectrophotometer. This novel method was compared with (i) total C by dry combustion - soil inorganic carbon (DC<sub>w/o pretreatment </sub>- Pcal); (ii) traditional Walkley-Black titration (WBTIT) and (iii) loss on ignition (LOI<sub>360</sub><sub>°C</sub>) in calcareous soils of south central Idaho (n=75) in conjunction with North American Proficiency Testing program soils (n=10). A two-way ANOVA was fit with soils as a blocking factor to identify any difference between methods, means were separated using Tukey's HSD (α=0.05). Additional comparisons were made for all soils (n=85) and for soils in the lower 75<sup>th</sup> percentile of SOC determined by WBTIT (n=56) using regression analysis. Only the WBTIT and LOI<sub>360</sub><sub>°C</sub> methods were statistically equivalent nevertheless there was high agreement (Lin's concordance coefficients >0.90) between all methods (n=85). Under low SOC soils (n=56) the agreement between all methods decreased, but the WBSPEC method fit other methods comparatively well r<sup>2</sup>= 0.71, 0.74, and 0.78 for LOI<sub>360</sub><sub>°C</sub>, DC<sub>w/o pretreatment </sub>- Pcal, and WBTIT respectively. The WBSPEC method provided estimates of SOC between the methods currently used in the region while reducing hazardous waste generation over traditional WBTIT and sample handling over LOI<sub>360</sub><sub>°C</sub> and DC<sub>w/o pretreatment </sub>- Pcal methods, positioning it as a sensible option for SOC determination in low SOC calcareous soils of south central Idaho.</p>
Divergent contributions of living roots to turnover of different soil organic carbon pools and their links to plant traits
<p>1. Rhizodeposits and root litter contribute critically to soil organic carbon (SOC) formation and decomposition. This root-induced SOC turnover shows great interspecific variations. Bulk SOC consists of diverse functional pools differing in formation and stabilization. Yet, it remains unclear which plant traits regulate the effects of living roots on the turnover of different SOC pools across species.</p> <p>2. By performing <sup>13</sup>CO<sub>2 </sub>continuous<sub> </sub>labelling of six grassland species for a growing season in a climate-controlled chamber, we quantified the contributions of living roots to the dynamics of the fast-cycling particulate organic C and the slow-cycling mineral-associated organic C, and explored their relations to plant traits.</p> <p>3. The results showed that new root-derived SOC varied more than threefold among the six species. The variation in new root-derived SOC was best explained by the ratio of shoot to root biomass. Plant species with higher shoot:root ratio formed more new root-derived SOC. Most of the root-derived C (72%) was incorporated into the particulate organic C pool. All species caused positive rhizosphere priming effects (RPE), which varied sevenfold across species. Among plant traits, specific root length was the best predictor of interspecific variations in the RPE, with greater RPE associated with higher specific root length. Most of the RPE (70%) occurred in the mineral-associated organic C pool. Our results also showed that most plant species caused more old SOC decomposition via the RPE than new SOC formation, leading to net SOC losses, especially for the mineral-associated organic C pool.</p> <p>4. Overall, we provide novel insights into the effects of plant traits on root-induced turnover of particulate and mineral-associated organic C. Our findings should be valuable for understanding how specific plant traits regulate SOC accumulation and stabilization.</p>
Covariates dataset for "Temporal harmonization of a national dataset for spatial prediction of soil organic carbon"
<p>Environmental covariates used to predict the spatial distribution of soil organic carbon for the article 'Temporal harmonization of a national dataset for spatial prediction of soil organic carbon'</p>
Supplementary material 1 from: Balestrini R, Delconte C, Buffagni A, Fumagalli A, Freppaz M, Calvo E, Buzzetti I (2019) Dynamic of nitrogen and dissolved organic carbon in an alpine forested catchment: atmospheric deposition and soil solution trends. In: Mazzocchi MG, Capotondi L, Freppaz M, Lugliè A, Campanaro A (Eds) Italian Long-Term Ecological Research for understanding ecosystem diversity and functioning. Case studies from aquatic, terrestrial and transitional domains. Nature Conservation 34: 41-66. https://doi.org/10.3897/natureconservation.34.30738
: Data type: statistical data
Soil organic carbon stabilization is dominated by non-sorptive process among the subsoils from different parent material
<p>Soil physical and chemical properties from different parent materials in subtropical China.</p>
Carbon burial in soils of the Great Marsh, DE: Evaluating accumulation rates and organic matter composition
<p>This data was collected to address the research questions listed in Rachel Owrutsky's master's thesis (2022) titled <em>Carbon burial in soils of the Great Marsh, DE: evaluating accumulation rates and organic matter composition. </em></p>
Streamwater dissolved organic carbon, discharge, temperature and precipitation electrical conductivity time series and associated site information for eight European headwater streams.
<p>This dataset (in Microsoft Excel format) provides the underlying data described in the Science Advances paper, "Long-term rise in riverine dissolved organic carbon concentration is predicted by electrolyte solubility theory", by D.T. Monteith, P.A. Henrys, J.Hruška, H.A. de Wit, P. Krám, F. Moldan, M. Posch, A. Räike, J.L. Stoddard, E.M. Shilland, M.G. Pereira & C.D. Evans, It includes the following spreadsheets: 1) A "<strong>readme</strong>" page providing the information above; 2) <strong>Site data</strong>. including site physical attributes and information on data sources; 3) <strong>Temporal smoothing</strong>. Detailing the temporal smoothers applied to the electrical conductivity and air temperature data for modelling purposes; and 4) <strong>Input data</strong>. Multi-decadal time series of dissolved organic carbon (DOC) concentrations for a range of intensively monitored headwater streams, together with data for the following variables used to model DOC, i.e. associated stream discharge measurements, and temporally averaged precipitation electrical conductivity and air temperature data. </p>
Stream and groundwater dissolved organic carbon (DOC) concentrations along a boreal headwater
<p>Dataset supporting the manuscript entitled "Groundwater flow paths drive longitudinal patterns of stream dissolved organic carbon (DOC) concentrations in boreal landscapes" published in Hydrology and Earth System Sciences. The following datasets are available:</p> <ul> <li><strong>df_Q.csv and error_Q.csv: </strong>observed discharge in l/s at gauging stations C5 and C6 (Figure 1; main manuscript) and assumed normally distributed errors for Q<sub>c5</sub> and Q<sub>c6</sub> </li> <li><strong>df_Q_gw_diff.csv, df_Q_gw_uca.csv:</strong> calculated groundwater discharge in l/s corresponding to equations (2) and (3) in the main manuscript</li> <li><strong>df_channel.csv: </strong>channel characteristics between gauging stations C5 and C6</li> <li><strong>sampling_actions.csv:</strong> sampling action ID's and corresponding dates</li> <li><strong>df_DOC_stream.csv, df_DOC_stream_prsd.csv:</strong> stream DOC concentrations in mg/l, and associated percent standard deviation (prsd)</li> <li><strong>df_DOC_gw.csv, df_DOC_gw_prsd.csv:</strong> groundwater DOC concentrations in mg/l, and associated percent standard deviation (prsd)</li> </ul>
Organic carbon dynamics in clay soils: impact of management practices on microorganism structure and abundance under semi-arid conditions
<p>Proper management of soil organic matter in arid and semi-arid regions improves organic carbon storage in the soil, helps in compact soil degradation, mitigates climate change impacts, and preserves ecosystem functionality and sustainability food security. This study aims to provide a better insight into the biogeochemical processes that drive the organic carbon dynamics of saline clay soil in a semi-arid area. The study is not intended to be exhaustive but contributes to analyzing the relationship between bacterial microflora, physicochemical properties, and organic carbon dynamics as a function of different soil management modes. The monitoring was carried out on three different plots located at the National Institute of Agronomic Research of Algeria. A physicochemical characterization of the soils was performed. A metagenomic study was also conducted to identify bacterial biodiversity using PCR-amplified DNA sequencing. The study results show that the control plot has the highest average organic carbon stock value at 47 Mg ha-1. This was followed by the amended plot and the conventional plot, respectively, with 43 Mg ha-1 and 38 Mg ha-1. In the context of this study, organic carbon dynamics would appear to depend on the interaction of several biotic and abiotic factors. Soil management methods would impact the density and diversity of bacterial microflora. This, in turn, affects the soil's physicochemical properties and, more specifically, organic carbon dynamics and storage.</p>
Influence of grain size, organic carbon and organic matter residue content on the sorption of per-and polyfluoroalkyl substances in aqueous film forming foam contaminated soils-Implications for remediation using soil washing
<p>Supporting information from Influence of grain size, organic carbon and organic matter residue content on the sorption of per-and polyfluoroalkyl substances in aqueous film forming foam contaminated soils-Implications for remediation using soil washing</p>
Data from: High nighttime humidity and dissolved organic carbon content support rapid decomposition of standing litter in a semi-arid landscape
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.