Filters: Tags: Manure (X) > partyWithName: Sarah M Stackpoole (X)

Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts U.S. Geological Survey U.S. Geological Survey - ScienceBase Office of Planning and Programming Lori A Sprague Edward G Stets Water Resources Categories Data (1) Tag Types Theme (1) Place (1) Harvest Set (1) USGS Scientific Topic Keyword (1) Tag Schemes National Water Quality Program (1) None (1) View Results as: JSON ATOM CSV

Watershed-scale agricultural phosphorus balances and river export trends for the conterminous United States, 1992-2012 This product consists of two tabular datasets and associated metadata for major phosphorus fluxes including manure and fertilizer inputs, crop uptake, as well as waste water treatment facility effluent and river export. These are time series data representing water years 1992 to 2012 for watersheds associated with the National Water Quality Program Surface Water Trends project. Dataset 1: Major fluxes and estimated net P balances. Dataset 2: Results of a t-test to determine if site level mean agricultural P balances were significantly above, not different, or below zero. Each site was then assigned to an Accumulation, Equilibrium, or Depletion status categories, respectively. Identification of sites where river... Categories: Data; Tags: Conterminous United States, USGS Science Data Catalog (SDC), United States, Water Quality, crop uptake, All tags... eutrophication, fertilizer, legacy phosphorus, manure, phosphorus, phosphorus balance, river export, waste water treatment plant export, water quality trends, watershed, Fewer tags