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

Dates

Publication Date
Start Date
1992
End Date
2012

Citation

Stackpoole, S.M., Stets, E.G., and Sprague, L.A., 2019, Watershed-scale agricultural phosphorus balances and river export trends for the conterminous United States, 1992-2012: U.S. Geological Survey data release, https://doi.org/10.5066/P972DHYF.

Summary

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 [...]

Child Items (1)

Contacts

Point of Contact :
Sarah M Stackpoole
Process Contact :
Sarah M Stackpoole
Originator :
Sarah M Stackpoole, Edward G Stets, Lori A Sprague
Metadata Contact :
Sarah M Stackpoole
Publisher :
U.S. Geological Survey
SDC Data Owner :
Office of Planning and Programming
USGS Mission Area :
Water Resources
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

Click on title to download individual files attached to this item.

RCode_StackpooleEtAl_ForPublication.txt
“Code”
37.17 KB text/plain
meanvalue_changevalues_agPbalsstatus_legacystatus.csv
“Output file means”
39.96 KB text/csv
netPinput_5yearinterval_data.csv
“Output file five, 5-year results”
130.71 KB text/csv
RiverTrendsOutput_MasterListVariables.csv
“Master variable list for output files”
3.96 MB text/csv

Purpose

The identification of watershed scale agricultural P status status and whether a watershed is affected by legacy sources helped us interpret the variability of river export trend results in response to changes in agricultural management.

Additional Information

Identifiers

Type Scheme Key
doi https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P972DHYF

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