Results 171 to 180 of about 423,821 (389)
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 +3 more
wiley +1 more source
Electrical Conductivity Protocol [PDF]
, 2003 The purpose of this resource is to measure the conductivity of water at a freshwater hydrology site. Students calibrate and take electrical conductivity measurements using an electrical conductivity meter.
The GLOBE Program, UCAR (University Corporation for Atmospheric Research)
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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 +3 more
wiley +1 more source
Contributions to the hydrology of eastern United States, 1903 [PDF]
, 1904 U.S. Geological Survey
openalex +1 more source
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 +17 more
wiley +1 more source
Scientific ReportsAir quality negatively impacts agriculture, reducing the yield of staple food crops. While measured data on African ground-level ozone levels are scarce, experimental studies demonstrate the damaging impact of ozone on crops.
K. Sharps +4 more
doaj +1 more source
Can conservation drainage practices contribute to climate change mitigation?
Journal of Environmental Quality, EarlyView.Abstract Conservation drainage practices can mitigate water quality impacts of subsurface drainage, but their potential for climate change mitigation remains poorly understood. We summarized processes by which tile‐drained croplands impact climate and assessed potential of conservation drainage practices to alter emissions of the greenhouse gases ...
Steven J. Hall +4 more
wiley +1 more source
Detailed soil survey of eight watercourse command areas in Chishtian and Hasalpur tehsils [PDF]
Irrigation management / Hydraulics / Channel improvement / Watercourses / Soil surveys / Hydrology / Climate / Mapping / Hydraulics / Infiltration / Pakistan / Fordwah ...
International Irrigation Management Institute (IIMI) +1 more
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