Catalog - Data.gov

Found 274 datasets matching "nitrogen content".

#1 Federal
Standing Crop & Nitrogen Content (FIFE)
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-17
The FIFE Standing Crop and Nitrogen Content Data Set contains biomass and nitrogen concentration data for live and dead above-ground plant material collected along transects in watersheds within...
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Search relevance: 139.77 | Views last month: 0
#2 Federal
Carbon and Nitrogen Content of Organic Soils in Lake-Margin Wetlands of the Yukon Flats National Wildlife Refuge
- Organization: Department of the Interior
- Updated: 2024-09-02T00:00:00Z
This dataset is a single comma-delimited text file (.csv). Data include the name of lakes where samples were obtained, soil core dimensions, bulk density, and carbon/nitrogen content of soil core...
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Search relevance: 116.50 | Views last month: 0
#3 Federal
Data from: Towards predicting biochar impacts on plant-available soil nitrogen content
- Organization: Department of Agriculture
- Updated: 2025-11-21
Biochars are charcoals used as soil amendments, and they have many beneficial effects on soil health. However, one negative effect is biochars often reduce concentrations of soil nitrogen that are...
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Search relevance: 111.56 | Views last month: 0
#4 Federal
County-based estimates of nitrogen and phosphorus content of animal manure in the United States for 1982, 1987, and 1992.
- Organization: Department of the Interior
- Updated: 2020-11-17T00:00:00Z
This data set contains county estimates of nitrogen and phosphorus content of animal wastes produced annually for the years 1982, 1987, and 1992. The estimates are based on animal populations for...
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Search relevance: 105.94 | Views last month: 0
#5 Federal
Winter cover crop biomass and nitrogen content from on-farm sampling, with corresponding Sentinel-2 band values and spectral indices, Maryland, USA, 2019-2023
- Organization: Department of the Interior
- Updated: 2025-05-19T00:00:00Z
This data release contains in situ winter cover crop biomass sampling data collected from fields located on the Delmarva Peninsula (Talbot, Queen Anne’s and Caroline County, Maryland, USA) and at...
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Search relevance: 86.00 | Views last month: 0
#6 Federal
Nitrogen content and delta N-15 of marine algae and associated waters of Maui, Hawaii, from 2012-07-28 to 2014-04-01 (NCEI Accession 0156294)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2016-08-12T00:00:00.000+00:00
This dataset includes nutrient data related to algal and water samples collected between 2012 and 2014 on Maui, Hawaii, as part of the University of Hawaii SeaGrant Project R/HE-17. Algal tissue...
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Search relevance: 82.79 | Views last month: 0
#7 Federal
CMS: Soil CO2 Efflux and Properties, Site Vegetation Measurements, Mexico, 2011-2012
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-17
This data set provides the results of (1) monthly measurements of soil CO2 efflux, volumetric water content, and temperature, and (2) seasonal measurements of soil (porosity, bulk density,...
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Search relevance: 71.77 | Views last month: 0
#8 Federal
Normalized Difference Vegetation Index, Biomass, and Nitrogen Content of Goose Forage, Northern Alaska, 2011-2018
- Organization: Department of the Interior
- Updated: 2025-05-05T00:00:00Z
This data set contains four tables of information regarding the sampling of plant biomass, nitrogen, cumulative thaw degree days, precipitation, and Normalized Difference Vegetation Index (NDVI)...
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Search relevance: 69.53 | Views last month: 0
#9 Federal
LBA-ECO TG-07 Long-Term Soil Gas Flux and Root Mortality, Tapajos National Forest
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-17
This data set reports measurements of trace gas fluxes of methane (CH4), nitric oxide (N2O), nitrous oxide (NO), carbon dioxide (CO2) from soils at a study site in the Tapajos National Forest...
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Search relevance: 67.22 | Views last month: 0
#10 Federal
LBA-ECO ND-11 Forest Soil Structure and Nitrate, NW Mato Grosso, Brazil: 2004-2005
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-17
This data set reports the results of the analysis of soil samples for Nitrate (NO3) and physical properties that were collected for one year following reduced impact logging in logging concessions...
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Search relevance: 65.70 | Views last month: 0
#11 Federal
ABoVE: Alder Shrub Cover and Soil Properties, Alaska, 2019, V2
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-17
This dataset holds measures of vegetative cover and soil characteristics for sites in interior Alaska, U.S., along the James W. Dalton Highway (Alaska Route 11). The field data were collected...
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Search relevance: 62.19 | Views last month: 0
#12 Federal
SGS-LTER Nitrogen content of aboveground biomass on and off US Forest Service Burns on the Pawnee National Grassland, Colorado, USA 1997-2004
- Organization: Department of Agriculture
- Updated: 2025-11-22
This data package was produced by researchers working on the Shortgrass Steppe Long Term Ecological Research (SGS-LTER) Project, administered at Colorado State University. Long-term datasets and...
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Search relevance: 58.71 | Views last month: 0
#13 Federal
Nitrate reduction rates and soil/ water chemistry from roadside ditches in the Mobile Bay (AL, USA) region (2018-05-23 to 2018-06-08) (NCEI Accession 0211099)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2020-07-15T00:00:00.000+00:00
Ninety-six roadside ditches spanning three landuse types in the Mobile Bay (Alabama, USA) region were sampled in May-June of 2018. Isotope pairing was used to measure nitrate reduction rates...
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Search relevance: 58.35 | Views last month: 0
#14 Federal
SGS-LTER Monthly Nitrogen content of aboveground biomass on and off US Forest Service Burns on the Pawnee National Grassland, Colorado, USA 1999-2003
- Organization: Department of Agriculture
- Updated: 2025-11-22
This data package was produced by researchers working on the Shortgrass Steppe Long Term Ecological Research (SGS-LTER) Project, administered at Colorado State University. Long-term datasets and...
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Search relevance: 57.07 | Views last month: 0
#15 Federal
Carbon, nitrogen, and phosphorus content of adult emergent Diptera before and after a fire-storm sequence in the Colorado River near Shinumo Creek, Grand Canyon, AZ
- Organization: Department of the Interior
- Updated: 2020-10-28T00:00:00Z
This dataset includes total phosphorus (TP), total nitrogen (TN), and total carbon (TC) concentrations as well as δ15N and δ13C composition, and overall C:N:P stoichiometry for adult emergent...
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Search relevance: 56.02 | Views last month: 0
#16 Federal
Seagrass canopy height, water depth, chlorophyll-a concentration and other plant and water quality indicators in Coastal Waters of Texas (NCEI Accession 0181898)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-03-19T00:00:00.000+00:00
This dataset contains raw tier 2 sampling data starting from 2011 for Texas coastal waters related to seagrasses. Parameters measured include chlorophyll a concentration, water depth, dissolved...
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Search relevance: 55.63 | Views last month: 0
#17 Federal
Denitrification Capacity of a Natural and a Restored Marsh in the Northern Gulf of Mexico from 2014-02-27 to 2015-02-26 (NCEI Accession 0223379)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2021-01-13T00:00:00.000+00:00
This dataset includes denitrification rates across a typical northern Gulf of Mexico salt marsh landscape that included a natural marsh, a tidal creek, and a 21-year-old restored salt marsh....
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Search relevance: 54.29 | Views last month: 0
#18 Federal
Static chamber gas fluxes and carbon and nitrogen isotope content of age-dated sediment cores from a Phragmites wetland in Sage Lot Pond, Massachusetts, 2013-2015
- Organization: Department of the Interior
- Updated: 2023-03-24T00:00:00Z
Coastal wetlands are major global carbon sinks; however, quantification of carbon flux can be difficult in these heterogeneous and dynamic ecosystems. To characterize spatial and temporal...
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Search relevance: 54.21 | Views last month: 0
#19 Federal
BOREAS TE-10 Leaf Chemistry Data
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-17
The BOREAS TE-10 team collected several data sets in support of its efforts to characterize and interpret information on the reflectance, transmittance, gas exchange, chlorophyll content, carbon...
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Search relevance: 54.20 | Views last month: 0
#20 Federal
Dissolved organic carbon and nitrogen release from boreal Holocene permafrost and seasonally frozen soils of Alaska
- Organization: Department of the Interior
- Updated: 2020-08-31T00:00:00Z
Permafrost (perennially frozen) and active-layer (seasonally thawed) soils varying in soil carbon (C) and nitrogen (N) content and radiocarbon age were collected from three sites in interior...
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Search relevance: 54.16 | Views last month: 0

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