{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Michael Wieczorek", "hasEmail": "mailto:mewieczo@usgs.gov"}, "description": "This data set represents the estimated percentage of the 1-km grid cell that is covered by or subject \nto the agricultural conservation practice (CP606), Subsurface Drains (SD) on agricultural land by county.  \nSubsurface Drains are described as \"a conduit, such as corrugated plastic tubing, tile, or pipe, installed \nbeneath the ground surface to collect and/or convey drainage.\" (U.S. Department of Agriculture, 1995)  \nThis data set was created with geographic information systems (GIS) and database management tools. \nThe acres on which SD's are applied were totaled at the county level in the tabular NRI database and \nthen apportioned to a raster coverage of agricultural land within the county based on the Enhanced \nNational Land Cover Dataset (NLCDe) 1-kilometer resolution land cover grids (Nakagaki, 2003). Federal \nland is not considered in this analysis because NRI does not record information on those lands.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P9IQ862C", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.72d681db-652c-415c-b4d5-bacfb3f8face.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_72d681db-652c-415c-b4d5-bacfb3f8face", "keyword": ["Agricultural Practices", "National Resources Inventory", "Subsurface Drains", "USGS:72d681db-652c-415c-b4d5-bacfb3f8face", "environment", "geoscientificInformation", "inlandWaters"], "modified": "2020-11-17T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-127.887748, 22.860749, -65.346810, 51.608770", "theme": ["geospatial"], "title": "Subsurface Drains on Agricultural Land in the Conterminous United States, 1992: National Resource Inventory Conservation Practice 606"}