Results 91 to 100 of about 115,152 (210)

Evaluating the potential for snowmelt phosphorus losses from perennial forage crops

Journal of Environmental Quality, EarlyView.
Abstract In cold regions, there is concern that losses of P with snowmelt runoff following freeze and thaw of vegetation may be greater from perennial forages relative to annual crops. We evaluate the drivers of P losses with snowmelt runoff over a network of field‐scale small watersheds in Manitoba, Canada, following annual crops (59 site‐years ...
Henry Wilson, Jane Elliott, Merrin Macrae, Vivekananthan Kokulan, Aaron Glenn   +4 more
wiley   +1 more source

Vulnerability assessments of pesticide leaching to groundwater [PDF]

, 2007
Pesticides may have adverse environmental effects if they are transported to groundwater and surface waters. The vulnerability of water resources to contamination of pesticides must therefore be evaluated.
Stenemo, Fredrik
core  

Five foundational tools for managing metadata from the USDA Long‐Term Agroecosystem Research (LTAR) Network

Journal of Environmental Quality, EarlyView.
Abstract The United States Department of Agriculture Long‐Term Agroecosystem Research (LTAR) Network comprises 19 sites and has collectively produced nearly one petabyte of data. Data include time‐series measurements, remotely sensed imagery, and high‐throughput environmental data from field and laboratory instrumentation.
Nicole E. Kaplan, Gerardo Armendariz, Shefali Azad, Bryan R. Carlson, William A. White, Lori J. Abendroth, Alisa W. Coffin, Vanessa S. Gordon, Jude E. Maul, William Osterholz, Jonathan Sears   +10 more
wiley   +1 more source

Baseline Review of the Upper Tana, Kenya [PDF]

, 2009
http://greenwatercredits.net/sites/default/files/documents/isric_gwc_report8 ...
Geertsma, R., Kauffman, J.H., Wilschut, L.I.   +2 more
core   +1 more source

Environmental sustainability in US dairy farms: Policies, practices, and outcomes

Journal of Environmental Quality, EarlyView.
Abstract Improving sustainability on US dairy farms has become a critical focus across the industry. As dairy farms continue to consolidate, there is a growing need to identify scalable, implementable soil health management practices that enhance environmental sustainability in the fields managed by the dairy.
Mara L. Cloutier, Daniel Liptzin, Adolfo Coyotl, Abigail E. Baxter, Cristine L. S. Morgan   +4 more
wiley   +1 more source

Through the lens of phosphorus: The legacy of Andrew Sharpley

Journal of Environmental Quality, EarlyView.
Abstract The pursuit of sustainable phosphorus (P) management represents a long‐standing challenge in agricultural arenas, with far‐reaching implications for the environment and societal development. Few scholars are as synonymous with P science as Andrew Sharpley.
Peter J. A. Kleinman, Don Flaten, Deanna Osmond, Helen Jarvie, Richard McDowell, Zachary Simpson, Joshua Mott   +6 more
wiley   +1 more source

Characterizing the fine‐scale spatial distribution of soil phosphorus for efficient phosphorus management in an Illinois tile‐drained field

Journal of Environmental Quality, EarlyView.
Abstract Closed depressions in post‐glacial landscapes can accumulate phosphorus (P) due to repeated flooding and become hotspots for P loss when underlain by subsurface (tile) drainage. Soil P mapping is routinely based on the interpolation of samples from a 1‐ha grid, which may miss closed depressions and underestimate soil P levels leading to ...
Lenarth A. Ferrari, Lowell E. Gentry, Luis F. Andino, Jennifer M. Fraterrigo   +3 more
wiley   +1 more source

Testing Wisconsin P index assessments across cropping systems

Journal of Environmental Quality, EarlyView.
Abstract Managing agricultural runoff phosphorus (P) often requires understanding management effects on both dissolved P (DP) and particulate (sediment‐bound) P (PP). The Wisconsin P index (WPI) allows producers to assess land management effects on runoff P by estimating annual P losses in mass per unit area.
Laura Good, Hava Blair, Jessica Sherman, Eric Young   +3 more
wiley   +1 more source

Utility of near‐surface phenology in estimating productivity and evapotranspiration across diverse ecosystems

Journal of Environmental Quality, EarlyView.
Abstract Agroecosystems, which include row crops, pasture, and grass and shrub grazing lands, are sensitive to changes in management, weather, and genetics. To better understand how these systems are responding to changes, we need to improve monitoring and modeling carbon and water dynamics.
Sander O. Denham, Dawn M. Browning, Adam P. Schreiner‐McGraw, Russell L. Scott, Brent Dalzell, Gerald N. Flerchinger, Patrick E. Clark, Sarah Goslee, David L. Hoover, Marcy Litvak, Marguerite Maritz, David Huggins, Claire L. Phillips, John Prueger, Joe Alfieri, Rosvel Bracho, Maria Silveira, Craig W. Whippo   +17 more
wiley   +1 more source

Challenges in dating blanket peat and implications for understanding its initiation in Ireland

Journal of Quaternary Science, EarlyView.
ABSTRACT Blanket peat is widespread in maritime extra‐tropical environments. Prehistoric land‐use activity was traditionally invoked as the stimulus of blanket peat initiation in the British Isles, but recently, climate has been viewed as the driver of peat formation.
Helen Essell, Gill Plunkett, Maarten Blaauw   +2 more
wiley   +1 more source