{"@type": "dcat:Dataset", "accessLevel": "public", "accrualPeriodicity": "irregular", "bureauCode": ["005:53", "005:18"], "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., \u2026 Kleinman, P.J.A. (2024). Phosphorus lability across diverse agricultural contexts with legacy sources. <i>Journal of Environmental Quality</i>, 1\u201319. <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>", "distribution": [{"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/46629706", "format": "7z", "mediaType": "application/x-7z-compressed", "title": "best performing models by site.7z"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/46629763", "format": "xlsx", "mediaType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", "title": "USDA Legacy P project - soils and sediments dataset.xlsx"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/46629796", "format": "png", "mediaType": "image/png", "title": "agri-v-ref_P-properties.png"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/46629799", "format": "png", "mediaType": "image/png", "title": "EPC0_v_AEM_and_GAM_v3.png"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/46629802", "format": "png", "mediaType": "image/png", "title": "pairs_core-P-vars_v3.png"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/46629805", "format": "png", "mediaType": "image/png", "title": "pairs_Fe-Al-clay.png"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/46629808", "format": "png", "mediaType": "image/png", "title": "pairs_stratification-ratios.png"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/46629811", "format": "png", "mediaType": "image/png", "title": "sed-vs-soil_emmeans-contrasts.png"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/46629814", "format": "png", "mediaType": "image/png", "title": "strat-ratio_via-emmeans.png"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/46629817", "format": "png", "mediaType": "image/png", "title": "time-since-last-P_AEM-EPC0-BWI_soils-only.png"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/46629862", "format": "R", "mediaType": "text/plain", "title": "correlation matrices for various variables.R"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/46629865", "format": "R", "mediaType": "text/plain", "title": "data and plot setup.R"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/46629868", "format": "R", "mediaType": "text/plain", "title": "estimate EPC0 by site -- Snake River.R"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/46629871", "format": "R", "mediaType": "text/plain", "title": "GAMs for EPC0.R"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/46629874", "format": "R", "mediaType": "text/plain", "title": "labile P as a stock.R"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/46629877", "format": "R", "mediaType": "text/plain", "title": "organise model-based EPC0 estimates.R"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/46629880", "format": "R", "mediaType": "text/plain", "title": "soil vs sediment contrasts.R"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/46629883", "format": "R", "mediaType": "text/plain", "title": "stratification of P in soils.R"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/46629886", "format": "R", "mediaType": "text/plain", "title": "time since last P, other mgmt.R"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/46629991", "format": "Rproj", "mediaType": "text/plain", "title": "USDA Legacy P - P lability in soils and sediments.Rproj"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/46794796", "format": "txt", "mediaType": "text/plain", "title": "readme.txt"}], "identifier": "10.15482/USDA.ADC/25892602.v1", "keyword": ["phosphorus", "legacy phosphorus", "sorption", "soil", "sediment", "EPC0"], "license": "https://creativecommons.org/licenses/by/4.0/", "modified": "2026-01-08", "programCode": ["005:040", "005:027"], "publisher": {"@type": "org:Organization", "name": "Agricultural Research Service"}, "spatial": "{\"type\": \"MultiPoint\", \"coordinates\": [[-114.36470497551085, 42.529335182614005], [-93.09390598792665, 44.946633559442546], [-86.91101529627943, 40.4475015791034], [-82.98470786777187, 39.94533443107363], [-89.51980787402127, 34.36179062102241], [-90.91031835603383, 33.423806690274304], [-76.91429174520925, 39.028501684729235], [-77.86482753622907, 40.79920562190611], [-73.15613564726097, 44.466151759214654], [-105.06758701599048, 40.57270549634876]]}", "temporal": "2022-03-01/2022-08-01", "title": "USDA Legacy P project: P lability in soils and sediments"}