A multi\u2011decadal grazing experiment was established in 1982 in the semiarid northern mixed\u2011grass prairie of the North American Great Plains using three grazing treatments: season\u2011long light stocking, season\u2011long heavy stocking, and non\u2011grazed exclosures. Soil samples were collected in 1993, 2003, and 2013 at depths of 0\u20135 cm, 5\u201315 cm, and 15\u201330 cm. Across all grazing treatments and depths, measured concentrations of soil organic carbon (SOC) and soil nitrogen (N) declined between 1993 and 2013. An exception was higher N concentrations in the 0\u20135 cm depth under season\u2011long light grazing.
The Data Dictionary file describes column names/variables, their data types, and units.
", "distribution": [{"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/65802789", "format": "csv", "mediaType": "text/csv", "title": "East Unit soils OC and N data 1993-2013.csv"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/65802813", "format": "csv", "mediaType": "text/csv", "title": "East Unit soils OC and N data 1993-2013_DataDictionary.csv"}], "identifier": "10.15482/USDA.ADC/32764923.v1", "keyword": ["grazing intensity", "livestock grazing exclusion", "livestock grazing intensity", "northern mixed-grass prairie", "soil carbon dynamics", "stocking rate"], "license": "https://creativecommons.org/publicdomain/zero/1.0/", "modified": "2026-07-06", "programCode": ["005:040"], "publisher": {"@type": "org:Organization", "name": "Agricultural Research Service"}, "spatial": "{\"type\": \"MultiPolygon\", \"coordinates\": [[[[-104.86690002079, 41.213850944115], [-104.86685884935, 41.209162314033], [-104.86686118172, 41.208720884225], [-104.86686147152, 41.208212562483], [-104.86455899013, 41.208731632937], [-104.86460278777, 41.213870287356], [-104.86690002079, 41.213850944115]]], [[[-104.87200950742, 41.218089769573], [-104.87209196848, 41.21594703746], [-104.87208622781, 41.213870708012], [-104.86870448506, 41.213895542939], [-104.86870989229, 41.215537962644], [-104.87062719181, 41.215522295952], [-104.87062215131, 41.218080358554], [-104.87200950742, 41.218089769573]]], [[[-104.86016258725, 41.218064149882], [-104.86018399651, 41.214588402137], [-104.85673729067, 41.214636389396], [-104.85668602486, 41.218069791589], [-104.86016258725, 41.218064149882]]], [[[-104.85667488702, 41.218076166044], [-104.85673358357, 41.21464143494], [-104.86010838122, 41.214593475291], [-104.86011960455, 41.214549784834], [-104.86310107268, 41.214171797419], [-104.86307897158, 41.213885079731], [-104.86265845853, 41.213888024209], [-104.86262346429, 41.209170029827], [-104.84770965883, 41.212509870127], [-104.84762257479, 41.218093005094], [-104.85667488702, 41.218076166044]]], [[[-104.8646027881, 41.213870123734], [-104.86455863629, 41.208731849999], [-104.86262948364, 41.209163778575], [-104.8626637131, 41.213884068864], [-104.8646027881, 41.213870123734]]]]}", "temporal": "1993-05-01/2013-10-01", "title": "Data from: Multi-decadal grazing effects on soil organic carbon and nitrogen concentrations in a semiarid rangeland"}