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Concentrations of nutrients at the water table beneath forage fields receiving seasonal applications of manure, Whatcom County, Washington, autumn 2011–spring 2015 科技报告
报告编号: 70199372, , 2018
作者:  Cox, Stephen E. secox@usgs.gov;  Spanjer, Andrew R. aspanjer@usgs.gov;  Huffman, Raegan L. rhuffman@usgs.gov;  Black, Robert W. rwblack@usgs.gov;  Barbash, Jack E. jbarbash@usgs.gov;  Embertson, Nichole M.
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Understanding the influence of nutrients on stream ecosystems in agricultural landscapes 科技报告
报告编号: 70191220, 页数: 92, 2018
作者:  Munn, Mark D. mdmunn@usgs.gov;  Frey, Jeffrey W. jwfrey@usgs.gov;  Tesoriero, Anthony J. tesorier@usgs.gov;  Black, Robert W. rwblack@usgs.gov;  Duff, John H. jhduff@usgs.gov;  Lee, Kathy E. klee@usgs.gov;  Maret, Terry R. trmaret@usgs.gov;  Mebane, Christopher A. cmebane@usgs.gov;  Waite, Ian R. iwaite@usgs.gov;  Zelt, Ronald B. rbzelt@usgs.gov
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