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49 results for “soil isotopes”
Dataset for "Model diagnostic analysis in a cold basin influenced by frozen soils with the aid of stable isotope"
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Data from: Convergence of soil nitrogen isotopes across global climate gradients
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Isotopic data from: Coupled shifts in ectomycorrhizal communities and plant uptake of organic nitrogen along a soil gradient: an isotopic perspective
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Data from: Compound-specific isotope analysis of amino acids as new tool to uncover trophic chains in soil food webs
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Data from: Contrasting nitrogen cycling between herbaceous wetland and terrestrial ecosystems inferred from plant and soil nitrogen isotopes across China
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LBA-ECO TG-09 Soil Isotopic C, N, H2O, and N2O Data, Tapajos National Forest, Brazil
This data set reports the results of carbon, nitrogen, and oxygen isotopic analyses of soil, soil water, and N2O soil gas samples; total soil carbon and nitrogen concentrations; and soil texture and bulk density. Samples were collected from the km 83 Logged Forest Tower Site and the km 67 Seca-Floresta Site in the Tapajos National Forest (TNF) near Santarem, Para, Brazil. Soil samples were collected in July of 2000 and soil gas samples were collected in 2001 and 2002. Soil and gas samples were collected from various soil types at each site and from several depths in specially constructed pits. There is one comma-delimited ASCII data file with this data set.
SAFARI 2000 Plant and Soil C and N Isotopes, Southern Africa, 1995-2000
This data set contains measurements of the concentration and stable carbon (13C / 12C) and nitrogen (15N / 14N) isotope ratios of plant (leaves, roots and fungi) and soil samples from southern Africa. The study sites in Zambia, Botswana, Namibia, and South Africa are located along the Kalahari Transect precipitation gradient. Some of the sites were relatively undisturbed while others had different intensities of cultivation, domestic grazing, and fires. The data were collected to detect patterns of N cycling along precipitation and grazing gradients, including N2 fixation by legumes. Data from different multiple projects are included. The plants and soils were sampled mainly in the wet season of years 1995, 1999, and 2000, with most of the data collected during the SAFARI 2000 Kalahari Wet Season Field Campaign in February and March of 2000. Some grass samples were collected in the dry season of year 2000 (from Mongu-dambo and Sua Pan grassland sites). Soil and plant samples were analyzed in a laboratory for %C, %N, d13C, and d15N with an Optima isotope ratio mass spectrometer coupled to an elemental analyzer. The stable isotope ratios are expressed using standard delta notation in units per mil. The isotope ratios are expressed relative to the international standard PDB (Pee Dee Belemnite) for carbon and atmospheric N2 for nitrogen samples. The carbon and nitrogen contents are expressed in percentage weight of the dry sample.The data files contain numerical and character fields of varying length separated by commas (.csv format).
CARVE: Fire-Related Aerosol and Soil Elemental and Isotopic Composition, Alaska, 2013
This data set provides measurements of the isotopic composition of black carbon and organic carbon aerosols collected at two locations in interior Alaska during the summer of 2013, as part of NASA's Carbon in Arctic Reservoirs Vulnerability Experiment (CARVE). The delta14C end member of fire aerosol was derived and linked to soil elemental and isotopic composition in Alaskan boreal forests. Soil and aerosol measurements were used to estimate average depth of burn in Alaska during the summer of 2013.
The Impact of Soil Tension on Isotope Fractionation, Transport, and Spatial-Temporal Origin of Root Water Uptake
<p>This respository includes the executables and HYDRUS-1D projects to run the HYDURS-1D isotope transport model.</p> <p>Software Description: The software is located in file folder "Executables". The exectuable in the "Non_Frac and CG_Frac" can be used to produce the modeling results for the Non_Frac and CG_Frac scenarios in this study. The exectuable in the "Non_Frac and TC_Frac" can be used to obtain the modeling results for the Non_Frac and TC_Frac scenarios in this study.</p> <p>How to run it: To use the code, you can simply replace the h1d_calc.exe file in the HYDRUS installation folder.</p> <p>Data: The corresponding HYDRUS projects include "lb01_l_no_frac_h", "lb01_l_no_frac_o", "lb01_l_cg_frac_h", "lb01_l_cg_frac_o", "lb01_l_TC_frac_h", "lb01_l_TC_frac_o" represent the Non_Frac scenario for 2H, Non_Frac scenario for 18O, CG_Frac scenario for 2H, CG_Frac scenario for 18O, TC_Frac scenario for 2H, TC_Frac scenario for 18O, respectively.</p>
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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)
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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.