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Changes in oxygen concentrations in our ocean can disrupt fundamental biological cycles 科技资讯
2019
收藏  |  浏览/下载：2/0  |  提交时间：2019/11/26
Changes in oxygen concentrations in our ocean can disrupt fundamental biological cycles 科技资讯
2019
收藏  |  浏览/下载：0/0  |  提交时间：2019/11/26
Agriculture Changing Sediment and Nutrient Concentrations in Acton Lake 科技资讯
2019
收藏  |  浏览/下载：22/0  |  提交时间：2019/06/11
Acton Lake  agriculture  best management practices  conservation tillage  featured  long-term data  LTREB  Miami University  Michael Vanni  news ticker  NSF  phosphorous  southwestern Ohio  USDA  
Turning wastewater sludge into energy and mineral salts 科技资讯
2019
收藏  |  浏览/下载：1/0  |  提交时间：2019/05/17
Drinking water health standards comparison and chemical analysis of groundwater for 72 domestic wells in Bradford County, Pennsylvania, 2016 科技报告
报告编号: 70202389, 页数: 76, 2019
作者:  Clune, John W.;  Cravotta, Charles A. III
Adobe PDF(8206Kb)  |  收藏  |  浏览/下载：25/7  |  提交时间：2019/11/06
Petrology of volcanic rocks associated with silver-gold (Ag-Au) epithermal deposits in the Tonopah, Divide, and Goldfield Mining Districts, Nevada 科技报告
报告编号: 70202841, , 2019
作者:  du Bray, Edward A. edubray@usgs.gov;  John, David A. djohn@usgs.gov;  Colgan, Joseph P. jcolgan@usgs.gov;  Vikre, Peter G. pvikre@usgs.gov;  Cosca, Michael A. mcosca@usgs.gov;  Morgan, Leah E. lemorgan@usgs.gov
Adobe PDF(1740Kb)  |  收藏  |  浏览/下载：50/20  |  提交时间：2019/11/06
Spatial distribution of nutrients, chloride, and suspended sediment concentrations and loads determined by using different sampling methods in a cross section of the Trenton Channel of the Detroit River, Michigan, November 2014–November 2015 科技报告
报告编号: 70200357, 页数: 38, 2019
作者:  Totten, Alexander R. atotten@usgs.gov;  Duris, Joseph W. jwduris@usgs.gov
Adobe PDF(4742Kb)  |  收藏  |  浏览/下载：36/13  |  提交时间：2019/11/06
Point-source nutrient loads to streams of the conterminous United States, 2012 科技报告
报告编号: 70200838, 页数: 24, 2019
作者:  Skinner, Kenneth D. kskinner@usgs.gov;  Maupin, Molly A. mamaupin@usgs.gov
Adobe PDF(3300Kb)  |  收藏  |  浏览/下载：2/0  |  提交时间：2019/11/06
Assessing potential effects of highway and urban runoff on receiving streams in total maximum daily load watersheds in Oregon using the stochastic empirical loading and dilution model 科技报告
报告编号: 70204038, , 2019
作者:  Stonewall, Adam J. stonewal@usgs.gov;  Granato, Gregory E.;  Glover-Cutter, Kira M.
Adobe PDF(17200Kb)  |  收藏  |  浏览/下载：32/14  |  提交时间：2019/11/06