中文版 | English

在结果中检索

CCPortal

浏览/检索结果: 共13条，第1-10条 帮助

限定条件    
已选(0)清除 条数/页：   排序方式：
Agriculture — A river runs through it — The connections between agriculture and water quality 科技报告
报告编号: 70187973, 页数: 216, 2018
作者:  Capel, Paul D. capel@usgs.gov;  McCarthy, Kathleen A.;  Coupe, Richard H. rhcoupe@usgs.gov;  Grey, Katia M.;  Amenumey, Sheila E.;  Baker, Nancy T. ntbaker@usgs.gov;  Johnson, Richard L.
Adobe PDF(69774Kb)  |  收藏  |  浏览/下载：69/41  |  提交时间：2019/11/06
Groundwater quality in the shallow aquifers of the Madera–Chowchilla and Kings subbasins, San Joaquin Valley, California 科技报告
报告编号: 70194663, , 2018
作者:  Fram, Miranda S. mfram@usgs.gov;  Shelton, Jennifer L. jshelton@usgs.gov
Adobe PDF(1522Kb)  |  收藏  |  浏览/下载：5/3  |  提交时间：2019/11/06
First comprehensive list of non-native species established in three major regions of the United States 科技报告
报告编号: 70199785, , 2018
作者:  Simpson, Annie;  Eyler, Meghan C.
Adobe PDF(1465Kb)  |  收藏  |  浏览/下载：26/7  |  提交时间：2019/11/06
Are changes in lower trophic levels limiting prey-fish biomass and production in Lake Michigan? 科技报告
报告编号: 70199979, , 2018
作者:  Bunnell, David B. dbunnell@usgs.gov;  Carrick, Hunter J.;  Madenjian, Charles P. cmadenjian@usgs.gov;  Rutherford, Edward S.;  Vanderploeg, Henry A.;  Barbiero, Richard P.;  Hinchey-Malloy, Elizabeth;  Pothoven, Steven A.;  Riseng, Catherine M.;  Claramunt, Randall M.;  Bootsma, Harvey A.;  Elgin, Ashley;  Rowe, Mark;  Thomas, Sara;  Turschak, Benjamin A.;  Czesny, Sergiusz J.;  Pangle, Kevin;  Warner, David M. dmwarner@usgs.gov
Adobe PDF(2771Kb)  |  收藏  |  浏览/下载：91/41  |  提交时间：2019/11/06
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
Adobe PDF(18305Kb)  |  收藏  |  浏览/下载：44/11  |  提交时间：2019/11/06
Changes in biological communities of the Fountain Creek Basin, Colorado, 2003–2016, in relation to antecedent streamflow, water quality, and habitat 科技报告
报告编号: 70194812, 页数: 30, 2018
作者:  Roberts, James J. jroberts@usgs.gov;  Bruce, James F. jbruce@usgs.gov;  Zuellig, Robert E. rzuellig@usgs.gov
Adobe PDF(5772Kb)  |  收藏  |  浏览/下载：32/14  |  提交时间：2019/11/06
Cobalt 科技报告
报告编号: 70175694, 页数: 52, 2017
作者:  Slack, John F. jfslack@usgs.gov;  Kimball, Bryn E. bekimball@usgs.gov;  Shedd, Kim B. kshedd@usgs.gov
Adobe PDF(4568Kb)  |  收藏  |  浏览/下载：33/11  |  提交时间：2019/11/06
Manganese 科技报告
报告编号: 70157592, 页数: 40, 2017
作者:  Cannon, William F. wcannon@usgs.gov;  Kimball, Bryn E. bekimball@usgs.gov;  Corathers, Lisa A. lcorathers@usgs.gov
Adobe PDF(6572Kb)  |  收藏  |  浏览/下载：87/32  |  提交时间：2019/11/06
Pesticide concentrations in wetlands on the Lake Traverse Indian Reservation, South and North Dakota, July 2015 科技报告
报告编号: 70169135, 页数: 42, 2016
作者:  Carter, Janet M. jmcarter@usgs.gov;  Thompson, Ryan F. rcthomps@usgs.gov
Adobe PDF(1585Kb)  |  收藏  |  浏览/下载：65/26  |  提交时间：2019/11/06
Insular ecosystems of the southeastern United States—A regional synthesis to support biodiversity conservation in a changing climate 科技报告
报告编号: 70171543, , 2016
作者:  Cartwright, Jennifer M. jmcart@usgs.gov;  Wolfe, William J. wjwolfe@usgs.gov
Adobe PDF(14447Kb)  |  收藏  |  浏览/下载：61/20  |  提交时间：2019/11/06