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Summary The documents in this collection, Open File Reports (OFR), represent information the Arkansas Geological Survey (AGS) has amassed from many past and present staff and other geoscientists friendly to the AGS. Friends who contributed include past and present federal, state, and local government personnel, academia, and private industry. The OFR collection consists of unpublished paper files which includes reports, correspondence, mineral and rock data, geochemical analyses and testing, county data, regional data, maps, charts, cross sections, stratigraphic data, paleontological data, and fossil fuels data. An Excel database was created to help searches by capturing the individual file title, abstract, data...
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These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. This data set consists of county estimates of nitrogen and phosphorus in kilograms from animal manure in the conterminous United States for 2002. These estimates were based on county-level population data of livestock, poultry, and other animals (cattle, poultry, hogs and pigs, horses and ponies, sheep and lambs) from the 2002 Census of Agriculture (2004) using methods described in Ruddy and others (2006).
    map background search result map search result map County-Level Estimates of Nitrogen and Phosphorus from Animal Manure for the Conterminous United States, 2002 County-Level Estimates of Nitrogen and Phosphorus from Animal Manure for the Conterminous United States, 2002