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USDA Legacy P project: P lability in soils and sediments

Published by Agricultural Research Service | Department of Agriculture | Metadata Last Checked: February 19, 2026 | Last Modified: 2026-01-08
The USDA Legacy Phosphorus Project seeks to leverage watershed research with USDA NRCS (Natural Resource Conservation Service) and USDA ARS (Agricultural Research Service) to advance the science, innovation, and forecasting of legacy phosphorus (P) mitigation strategies. This project utilizes Conservation Effects Assessment Project (CEAP) watersheds across seven research sites within the Snake River, Mississippi River, Lake Erie, Chesapeake Bay, and Lake Champlain watersheds.This dataset supports the article Simpson,Z.P., Mott,J., Elkin,K., Buda,A., Faulkner,J., Hapeman,C., McCarty,G., Foroughi,M., Hively,W.D., King,K., Osterholz,W., Penn,C., Williams,M., Witthaus,L., Locke,M., Pawlowski,E., Dalzell,B., Feyereisen,G., Dolph,C., … Kleinman, P.J.A. (2024). Phosphorus lability across diverse agricultural contexts with legacy sources. Journal of Environmental Quality, 1–19. https://doi.org/10.1002/jeq2.20632The main data file contains multiple sheets to guide the user, see 'readme' and 'column descriptions' for details. The 'Data Summary' sheet has the primary data in tidy format.The R project (.Rproj) file is useful for navigating the R code in RStudio. Scripts to support and reproduce the analyses in the manuscript are given. Code for figures are also in these scripts. The 'analyses' folder includes EPC0 fits viabrms-- for sake of space, only the selected fits are included here ("best performing models by site") -- unzip that folder to use.Contact Zach Simpson for more information.Funded through an interagency agreement between USDA-NRCS and USDA-ARS, specifically: USDA Conservation Effects Assessment Project (CEAP) Watershed Assessment Studies

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Complete Metadata
@type dcat:Dataset
accessLevel public
accrualPeriodicity irregular
bureauCode 
                                            [
  "005:18",
  "005:53"
]
contactPoint 
                                            {
  "fn": "Kleinman, Peter",
  "hasEmail": "mailto:peter.kleinman@usda.gov"
}
description <p dir="ltr">The USDA Legacy Phosphorus Project seeks to leverage watershed research with <a href="https://www.nrcs.usda.gov/ceap/watersheds" target="_blank">USDA NRCS </a>(Natural Resource Conservation Service) and <a href="https://www.ars.usda.gov/natural-resources-and-sustainable-agricultural-systems/water-availability-and-watershed-management/" target="_blank">USDA ARS </a>(Agricultural Research Service) to advance the science, innovation, and forecasting of legacy phosphorus (P) mitigation strategies. This project utilizes <a href="https://www.nrcs.usda.gov/ceap/watersheds" target="_blank">Conservation Effects Assessment Project (CEAP) </a>watersheds across seven research sites within the Snake River, Mississippi River, Lake Erie, Chesapeake Bay, and Lake Champlain watersheds.</p><p dir="ltr">This dataset supports the article </p><p dir="ltr">Simpson,Z.P., Mott,J., Elkin,K., Buda,A., Faulkner,J., Hapeman,C., McCarty,G., Foroughi,M., Hively,W.D., King,K., Osterholz,W., Penn,C., Williams,M., Witthaus,L., Locke,M., Pawlowski,E., Dalzell,B., Feyereisen,G., Dolph,C., … Kleinman, P.J.A. (2024). Phosphorus lability across diverse agricultural contexts with legacy sources. <i>Journal of Environmental Quality</i>, 1–19. <a href="https://doi.org/10.1002/jeq2.20632" target="_blank">https://doi.org/10.1002/jeq2.20632</a></p><p dir="ltr">The main data file contains multiple sheets to guide the user, see 'readme' and 'column descriptions' for details. The 'Data Summary' sheet has the primary data in tidy format.</p><p dir="ltr">The R project (.Rproj) file is useful for navigating the R code in RStudio. Scripts to support and reproduce the analyses in the manuscript are given. Code for figures are also in these scripts. The 'analyses' folder includes EPC0 fits via</p><p dir="ltr"><code>brms</code></p><p dir="ltr">-- for sake of space, only the selected fits are included here ("best performing models by site") -- unzip that folder to use.</p><p dir="ltr">Contact Zach Simpson for more information.</p><p><br></p><p dir="ltr">Funded through an interagency agreement between USDA-NRCS and USDA-ARS, specifically: USDA Conservation Effects Assessment Project (CEAP) Watershed Assessment Studies</p>
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identifier 10.15482/USDA.ADC/25892602.v1
keyword 
                                            [
  "EPC0",
  "legacy phosphorus",
  "phosphorus",
  "sediment",
  "soil",
  "sorption"
]
license https://creativecommons.org/licenses/by/4.0/
modified 2026-01-08
programCode 
                                            [
  "005:027",
  "005:040"
]
publisher 
                                            {
  "name": "Agricultural Research Service",
  "@type": "org:Organization"
}
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temporal 2022-03-01/2022-08-01
title USDA Legacy P project: P lability in soils and sediments

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