{"@type": "dcat:Dataset", "accessLevel": "public", "accrualPeriodicity": "irregular", "bureauCode": ["005:18"], "contactPoint": {"fn": "Liebig, Mark A.", "hasEmail": "mailto:mark.liebig@usda.gov"}, "description": "<p dir=\"ltr\">Integrated crop-livestock systems have been identified as having positive agronomic and environmental outcomes, but information documenting their long-term impact on soil properties is lacking. An integrated crop-livestock study was conducted to evaluate the effects of residue management, frequency of hoof traffic, season, and production system (integrated annual cropping vs. perennial grass) on soil properties at the 0-7.5 cm depth from 2001 through 2008. The study was conducted at the USDA-ARS Northern Great Plains Research Laboratory, Mandan, North Dakota, USA. Soil bulk density, electrical conductivity, soil pH, extractable N and P, potentially mineralizable N, soil organic carbon, and total nitrogen were measured 3, 6, and 9 years after treatment establishment. Electrical conductivity and pH were estimated from a 1:1 soil-water mixture. Soil nitrate-N and ammonium-N were determined from 1:10 soil-KCl (2 M) extracts using cadmium reduction followed by a modified Griess-Ilosvay method and indophenol blue reaction. Plant-available soil P was estimated by bicarbonate extraction. Potentially mineralizable N was estimated from the ammonium-N accumulated after a 7-d anaerobic incubation. Total soil carbon and nitrogen were determined by dry combustion. Values for soil properties were incorporated into a soil quality index to assess production system effects on soil condition using the Soil Management Assessment Framework. Data may be used to understand integrated crop-livestock system impacts on near-surface soil properties. Data are generally applicable to cropland under a semiarid continental climate for the following USDA soil types: Grassna, Linton, Mandan, Temvik, Williams, and Wilton.</p>", "distribution": [{"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/55369505", "format": "xlsx", "mediaType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", "title": "ICL SQ_Soil Properties_Time.xlsx"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/55369508", "format": "xlsx", "mediaType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", "title": "ICL SQ_Soil Properties_Treatments.xlsx"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/55369511", "format": "xlsx", "mediaType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", "title": "ICL SQ_Weather Metrics.xlsx"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/55369514", "format": "xlsx", "mediaType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", "title": "ICL_SQ_Data Dictionary.xlsx"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/55369517", "format": "xlsx", "mediaType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", "title": "ICL SQ_SMAF Index Scores.xlsx"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/55369520", "format": "csv", "mediaType": "text/csv", "title": "ICL SQ_SMAF_Data.csv"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/55369523", "format": "csv", "mediaType": "text/csv", "title": "ICL SQ_SMAF_Metadata.csv"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/55369526", "format": "csv", "mediaType": "text/csv", "title": "ICL SQ_Soil Props_Time_Data.csv"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/55369529", "format": "csv", "mediaType": "text/csv", "title": "ICL SQ_Soil Props_Time_Metadata.csv"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/55369532", "format": "csv", "mediaType": "text/csv", "title": "ICL SQ_Soil Props_Trts_Data.csv"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/55369535", "format": "csv", "mediaType": "text/csv", "title": "ICL SQ_Soil Props_Trts_Metadata.csv"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/55369538", "format": "csv", "mediaType": "text/csv", "title": "ICL SQ_Weather_Data.csv"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/55369541", "format": "csv", "mediaType": "text/csv", "title": "ICL SQ_Weather_Metadata.csv"}], "identifier": "10.15482/USDA.ADC/29206358.v1", "keyword": ["Integrated agricultural systems", "Soil change", "Soil quality"], "license": "https://creativecommons.org/publicdomain/zero/1.0/", "modified": "2025-11-21", "programCode": ["005:040"], "publisher": {"@type": "org:Organization", "name": "Agricultural Research Service"}, "spatial": "{\"type\": \"MultiPoint\", \"coordinates\": [[-100.91277, 46.7732], [-100.90423, 46.76765]]}", "temporal": "2001-04-01/2008-10-31", "title": "Data from: Integrated Crops and Livestock in Central North Dakota, USA: Agroecosystem Management to Buffer Soil Change"}