Application of manure nitrogen generated at cattle animal feeding operations to nearby farmland within the Pacific drainages of the United States (2012)
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The U.S. Geological Survey (USGS) is developing SPARROW models (SPAtially Related Regressions On Watershed Attributes) to assess the transport of contaminants (e.g.,...
美国地质调查局（U.S. Geological Survey, USGS）正开发SPARROW模型（流域属性空间相关回归模型，SPAtially Related Regressions On Watershed Attributes, SPARROW），以评估污染物的输移过程（例如……）
