• Organization: U.S. Environmental Protection Agency
• Updated: 2020-02-05

The supplementary information provides details on the methods used to find the basal area-BNF rate regression, the specific literature that was used to derive both these regressions and the %Ndfa...

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• Organization: U.S. Environmental Protection Agency
• Updated: 2024-11-04

This dataset describes the estimates of gridded nitrogen fixation from various sources globally. The global gridded datasets of BNF generated here are available in the ScienceBase repository...

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• Organization: U.S. Environmental Protection Agency
• Updated: 2015-05-07T00:00:00.000+00:00

This EnviroAtlas dataset contains data on the mean cultivated biological nitrogen fixation (C-BNF) in cultivated crop and hay/pasture lands per 12-digit Hydrologic Unit (HUC) in 2006. Nitrogen (N)...

• Organization: U.S. Environmental Protection Agency
• Updated: 2015-05-07T00:00:00.000+00:00

This EnviroAtlas dataset contains data on the mean biological nitrogen fixation in natural/semi-natural ecosystems per 12-digit Hydrologic Unit (HUC) in 2006. Biological N fixation (BNF) in...

• Organization: U.S. Environmental Protection Agency
• Updated: 2023-11-13

This dataset represents the density of nitrogen surplus as kg N / yr, excluding biological N Fixation, within individual, local NHDPlusV2 catchments and upstream, contributing watersheds.

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• Organization: U.S. Environmental Protection Agency
• Updated: 2023-11-13

This dataset represents the application of nitrogen within individual,  local NHDPlusV2 catchments and upstream, contributing watersheds based data published in EPA EnviroAtlas. Attributes were...

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• Organization: U.S. Environmental Protection Agency
• Updated: 2023-11-13

This dataset represents the application of nitrogen within individual local and accumulated upstream catchments for NHDPlusV2 Waterbodies based data published in EPA EnviroAtlas. Catchment...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-17

Biome-BGC is a computer program that estimates fluxes and storage of energy, water, carbon, and nitrogen for the vegetation and soil components of terrestrial ecosystems. The primary model purpose...

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• Organization: Department of Agriculture
• Updated: 2025-11-22

Phenotypic evaluation of 37 crimson clover (Trifolium incarnatum L.) accessions from the US National Plant Germplasm System. Focus of the trial was on traits important for cover crop performance,...

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• Organization: Department of the Interior
• Updated: 2022-08-05T00:00:00Z

The detrimental effects of excess nutrients and sediment entering the Chesapeake Bay estuary from its watersheds have necessitated regulatory actions. Federally-mandated reductions are apportioned...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2026-01-23T00:00:00.000+00:00

This collection includes surface primary production (carbon fixation rates by photosynthesis of planktonic algae), regional hydrography, physical forcing variables (such as the wind), and the...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2026-01-23T00:00:00.000+00:00

This collection includes surface primary production (carbon fixation rates by photosynthesis of planktonic algae), regional hydrography, physical forcing variables (such as the wind), and the...

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