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Watershed-scale agricultural phosphorus balances and river export trends for the conterminous United States, 1992-2012

Metadata Updated: October 29, 2023

This product consists of two tabular datasets and associated metadata for major phosphorus fluxes including manure and fertilizer inputs, crop uptake, as well as waste water treatment facility effluent and river export. These are time series data representing water years 1992 to 2012 for watersheds associated with the National Water Quality Program Surface Water Trends project. Dataset 1: Major fluxes and estimated net P balances. Dataset 2: Results of a t-test to determine if site level mean agricultural P balances were significantly above, not different, or below zero. Each site was then assigned to an Accumulation, Equilibrium, or Depletion status categories, respectively. Identification of sites where river loads are impacted by legacy P. Estimated changes river export between 1992 - 2012.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date June 1, 2023
Metadata Updated Date October 29, 2023

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 1, 2023
Metadata Updated Date October 29, 2023
Publisher U.S. Geological Survey
Identifier USGS:5bc4c683e4b0fc368eba0608
Data Last Modified 20200826
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id 4ba3d288-7ee4-4c7d-aa60-4f2200ecc0c4
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -127.3535,25.5698,-64.248,50.4628
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash f1cbec24facadbb71cd8918143846069d1e9b3754b3bbdfe1d0d2cee8b218b0e
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -127.3535, 25.5698, -127.3535, 50.4628, -64.248, 50.4628, -64.248, 25.5698, -127.3535, 25.5698}

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