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Representation of regional urban development conditions using a watershed-based gradient study design 科技报告
来源:US Geological Survey (USGS). 出版年: 2012
作者:  Terziotti, Silvia seterzio@usgs.gov;  McMahon, Gerard gmcmahon@usgs.gov;  Bell, Amanda H. ahbell@usgs.gov
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Variability in stream chemistry in relation to urban development and biological condition in seven metropolitan areas of the United States, 1999-2004 科技报告
来源:US Geological Survey (USGS). 出版年: 2012
作者:  Beaulieu, Karen M. kmbeauli@usgs.gov;  Bell, Amanda H. ahbell@usgs.gov;  Coles, James F. jcoles@usgs.gov
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