{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Nancy T. Baker", "hasEmail": "mailto:ntbaker@usgs.gov"}, "description": "This dataset is an aggregation of county-level tillage practices to the 8-digit hydrologic unit watershed. \nThe original county-level data were collected by the Conservation Technology Information Center (CTIC) \nand is a proprietary dataset. The CTIC collects tillage data by conducting surveys about tillage systems \nfor all counties in the United States. Watershed aggregations were done by overlying the 8-digit HUC \npolygons with a raster of county boundaries and a raster of the 1992 enhanced National Land Cover \nData for land use 61, 62, 82, 83, and 84 (cultivated land) to derive a county/land-use area weighting factor. \nThe weighting factor was then applied to the county-level tillage data for the counties within each 8-digit \nHUC and summed to yield the total acreage of each tillage type within each 8-digit HUC watershed. \nTillage systems include three types of conservation tillage (no-till, ridge-till, and mulch-till), reduced tillage, \nand intensive tillage. Total planted acreage for each tillage practice for each crop grown is reported to the \nCTIC.The dataset includes total planted acreage by tillage type for selected crops (corn, cotton, grain \nsorghum, soybeans, fallow, forage, newly established permanent pasture, spring and fall seeded small \ngrains, and \"other\" crops) for 1989-2004. The CTIC did not collect data nationwide for 1999, 2001, and \n2003. In addition, data were not collected for all counties every year. Missing data are coded with -9999. \nThe companion WBDHUC8 geospatial dataset is available online: \nhttps://water.usgs.gov/lookup/getspatial?wbdhuc8.xml .", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://water.usgs.gov/lookup/getspatial?ds573_tillage_lu92e", "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.5d89a46c-42ef-40c1-9aca-5804502ef1d3.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_5d89a46c-42ef-40c1-9aca-5804502ef1d3", "keyword": ["Conterminous U.S.", "Inlandwaters", "USGS:5d89a46c-42ef-40c1-9aca-5804502ef1d3", "agricultural land", "crop residue management", "inland waters", "planted acreage", "tillage practice"], "modified": "2020-11-17T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-127.886246, 22.885847, -64.623167, 51.602543", "theme": ["geospatial"], "title": "Tillage Practices in the Conterminous United States, 1989-2004--Datasets Aggregated by Watershed; tillage_lu92e"}