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| Soil data for a vegetation gradient located at Bonanza Creek Long Term Ecological Research Site, interior Alaska 科技报告 来源:US Geological Survey (USGS). 出版年: 2016 作者: [null] 收藏  |  浏览/下载:11/0  |  提交时间:2019/04/05 |
| Monitoring plant tissue nitrogen isotopes to assess nearshore inputs of nitrogen to Lake Crescent, Olympic National Park, Washington 科技报告 来源:US Geological Survey (USGS). 出版年: 2016 作者: Cox, Stephen E. secox@usgs.gov; Moran, Patrick W. pwmoran@usgs.gov; Huffman, Raegan L. rhuffman@usgs.gov; Fradkin, Steven C. 收藏  |  浏览/下载:0/0  |  提交时间:2019/04/05 |
| Nitrogen loads from selected rivers in the Long Island Sound Basin, 2005???13, Connecticut and Massachusetts 科技报告 来源:US Geological Survey (USGS). 出版年: 2016 作者: [null] 收藏  |  浏览/下载:0/0  |  提交时间:2019/04/05 |
| Preliminary characterization of nitrogen and phosphorus in groundwater discharging to Lake Spokane, northeastern Washington, using stable nitrogen isotopes 科技报告 来源:US Geological Survey (USGS). 出版年: 2016 作者: [null] 收藏  |  浏览/下载:2/0  |  提交时间:2019/04/05 |
| Evaluation of the effects of sewering on nitrogen loads to the Niantic River, southeastern Connecticut, 2005-2011 科技报告 来源:US Geological Survey (USGS). 出版年: 2015 作者: Mullaney, John R. jmullane@usgs.gov 收藏  |  浏览/下载:0/0  |  提交时间:2019/04/05 |
| Nutrient attenuation in rivers and streams, Puget Sound Basin, Washington 科技报告 来源:US Geological Survey (USGS). 出版年: 2015 作者: Sheibley, Rich W. sheibley@usgs.gov; Konrad, Christopher P. cpkonrad@usgs.gov; Black, Robert W. rwblack@usgs.gov 收藏  |  浏览/下载:4/0  |  提交时间:2019/04/05 |
| Occurrence and trends of selected nutrients, other chemical constituents, diatoms, and cyanobacteria in bottom sediment, Lake Maxinkuckee, northern Indiana 科技报告 来源:US Geological Survey (USGS). 出版年: 2015 作者: Juracek, Kyle E. kjuracek@usgs.gov 收藏  |  浏览/下载:0/0  |  提交时间:2019/04/05 |
| Literature review of the potential effects of hydrogen peroxide on nitrogen oxidation efficiency of the biofilters of recirculating aquaculture systems (RAS) for freshwater finfish 科技报告 来源:US Geological Survey (USGS). 出版年: 2015 作者: [null] 收藏  |  浏览/下载:0/0  |  提交时间:2019/04/05 |
| Literature review of the potential effects of formalin on nitrogen oxidation efficiency of the biofilters of recirculating aquaculture systems (RAS) for freshwater finfish 科技报告 来源:US Geological Survey (USGS). 出版年: 2015 作者: [null] 收藏  |  浏览/下载:0/0  |  提交时间:2019/04/05 |
| Continuous monitoring of sediment and nutrients in the Illinois River at Florence, Illinois, 2012-13 科技报告 来源:US Geological Survey (USGS). 出版年: 2015 作者: Terrio, Paul J. pjterrio@usgs.gov; Straub, Timothy D. tdstraub@usgs.gov; Domanski, Marian M. mdomanski@usgs.gov; Siudyla, Nicholas A. nsiudyla@usgs.gov 收藏  |  浏览/下载:1/0  |  提交时间:2019/04/05 |