Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Sheila F. Christopher"'
Publikováno v:
Journal of Environmental Quality. 50:667-679
The midwestern United States is a highly productive agricultural region, and extended crop-free periods in winter/spring can result in nitrogen (N) and phosphorus (P) losses to waterways that degrade downstream water quality. Planting winter cover cr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::931bbd92d67038417fe8e15ac8dcb123
https://doi.org/10.1002/jeq2.20217
https://doi.org/10.1002/jeq2.20217
Autor:
Ursula H. Mahl, Brittany R. Hanrahan, Todd V. Royer, Sheila F. Christopher, Matt T. Trentman, Jennifer L. Tank
Publikováno v:
Agriculture, Ecosystems & Environment. 265:513-523
Agricultural land use in the Midwestern U.S. is the major source of nitrogen (N) causing recurring hypoxia in the northern Gulf of Mexico. Despite efforts to reduce losses, N export from tile-drained, agricultural watersheds throughout the Corn Belt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84376d9bd4ba1b4d3fc7bedd3b9ad409
https://doi.org/10.1016/j.agee.2018.07.004
https://doi.org/10.1016/j.agee.2018.07.004
Autor:
Brittany R. Hanrahan, Sheila F. Christopher, Ursula H. Mahl, Todd V. Royer, Jennifer L. Tank, Shannon L. Speir, Matt T. Trentman
Publikováno v:
Science of The Total Environment. 801:149501
Excess phosphorus (P) from agriculture is a leading cause of harmful and nuisance algal blooms in many freshwater ecosystems. Throughout much of the midwestern United States, extensive networks of subsurface tile drains remove excess water from field
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad42c322895144baf38c38b8793db678
https://doi.org/10.1016/j.scitotenv.2021.149501
https://doi.org/10.1016/j.scitotenv.2021.149501
Autor:
Matthew E. Herbert, Michael J. White, Matt T. Trentman, Jared Ross, Haw Yen, Todd V. Royer, Ursula H. Mahl, Jeffrey G. Arnold, Sheila F. Christopher, Jennifer L. Tank, Scott P. Sowa
Publikováno v:
Ecological Engineering. 108:358-369
Western Lake Erie Basin (WLEB) is the most intensively farmed region of the Great Lakes. Because of the flat topography and poorly-drained soils many farmers rely on drainage management practices (e.g., subsurface tile drainage, ditch channelization)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3e679382c2f73cc715d42878cc4d931
https://doi.org/10.1016/j.ecoleng.2017.03.015
https://doi.org/10.1016/j.ecoleng.2017.03.015
Publikováno v:
Ecological Engineering. 108:370-379
Subsurface tile drainage has been used around the globe to lower the water table and drain soils that are seasonally or perennially wet making them suitable for agriculture and/or increasing productivity. However, tile drainage systems have a negativ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4fae5a899f55b1e6d0401ccf832bb0d1
https://doi.org/10.1016/j.ecoleng.2017.06.048
https://doi.org/10.1016/j.ecoleng.2017.06.048
Autor:
Jared Ross, Matthew E. Herbert, Jeffrey G. Arnold, Michael J. White, Sheila F. Christopher, Kevin W. King, Scott P. Sowa, Jane R. Frankenberger, Jennifer L. Tank, Haw Yen
Publikováno v:
Agricultural Water Management. 178:366-376
Viable large-scale crop production in the United States requires artificial drainage in humid and poorly drained agricultural regions. Excess water removal is generally achieved by installing tile drains that export water to open ditches that eventua
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::373148053e40244804462d34b5f733ab
https://doi.org/10.1016/j.agwat.2016.10.011
https://doi.org/10.1016/j.agwat.2016.10.011
Publikováno v:
Biomass and Bioenergy. 83:50-59
Expansion of ethanol production has led to regional-scale cultivation of cellulosic biofuel crops, such as switchgrass ( Panicum virgatum L.), on agriculturally marginal lands. A range of forest-based solutions are also being evaluated, especially in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be3f795fc7e404691cc3434893a45383
https://doi.org/10.1016/j.biombioe.2015.08.012
https://doi.org/10.1016/j.biombioe.2015.08.012
Autor:
Stephen H. Schoenholtz, Julian F. Cacho, Sudhanshu Panda, Elizabeth Allen, Craig D. Marshall, Erin M. Bennett, Taylor Carter, Nicole Dobbs Bowen, George M. Chescheir, Devendra M. Amatya, Brian David Phillips, Erik B. Schilling, Ethan J. Greene, Shiying Tian, Jami E. Nettles, T. W. Appelboom, Mohamed A. Youssef, Stream Improvement, Eric B. Sucre, François Birgand, Darren A. Miller, Catchlight Energy Llc, Augustine Muwamba, R. W. Skaggs, Sheila F. Christopher
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3ba68374f7a1da1013d8eac261193f6
https://doi.org/10.2172/1437923
https://doi.org/10.2172/1437923
Publikováno v:
Hydrology and Earth System Sciences, Vol 13, Iss 3, Pp 423-439 (2009)
Spatial dynamics of solute chemistry and natural abundance isotopes of nitrate (15N and 18O) were examined in seven locations and at the watershed outlet in 2001 and 2002 in a forest watershed in the Adirondack Mountains of New York State, USA. Tempo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ab1339b86d7301cb1bec316f6c6a1ad
http://www.hydrol-earth-syst-sci.net/13/423/2009/hess-13-423-2009.pdf
http://www.hydrol-earth-syst-sci.net/13/423/2009/hess-13-423-2009.pdf
Autor:
Lindsey E. Rustad, Ivan J. Fernandez, Peter M. Groffman, Scott V. Ollinger, Daniel Houle, Elizabeth W. Boyer, Jana KiekbuschJ. Kiekbusch, Alison H. Magill, John Campbell, Myron J. Mitchell, Sheila F. Christopher, Charles T. Driscoll
Publikováno v:
Canadian Journal of Forest Research. 39:264-284
A critical component of assessing the impacts of climate change on forest ecosystems involves understanding associated changes in the biogeochemical cycling of elements. Evidence from research on northeastern North American forests shows that direct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d7c27158e4b1d9be8123b60d6ac9948
https://doi.org/10.1139/x08-104
https://doi.org/10.1139/x08-104