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Full-Text Articles in Earth Sciences

Plant Available Water And Plant Water Stress, Ronald E. Phillips Sep 1984

Plant Available Water And Plant Water Stress, Ronald E. Phillips

Soil Science News and Views

The 1983 growing season in Kentucky was a vivid reminder that water is essential for good plant growth. And the water used by plants is taken from the reserve or water stored in soil.


Sewage Sludge For Land Application, William O. Thom Jun 1984

Sewage Sludge For Land Application, William O. Thom

Soil Science News and Views

Sewage sludge is a product of waste water treatment plants that function as environmentally acceptable pollution control facilities. In past years most of the sludge had been landfilled, dumped at sea or buried. But environmental and economic considerations have resulted in greater interest in its application on cropland.


Effect Of Small Aspen Clearcuts On Water Yield And Water Quality, United States Department Of Agriculture, Forest Service Jan 1984

Effect Of Small Aspen Clearcuts On Water Yield And Water Quality, United States Department Of Agriculture, Forest Service

Forestry

Streamflow and water quality were monitored in a paired watershed study involving the removal of 20 percent of the aspen (on 13 percent of the area) in five small clearcuts from a 217-acre (88-ha) catchment. There were no significant changes in peak flow, timing, or annual yield during the 4 years of posttreatment monitoring. Significant changes in pH, calcium, magnesium, and nitrates in the snowmelt streamflow from ephemeral subdrainages occurred the second year after cutting. At least some of the differences were attributed to the chemistry of the 1976-77 snowfall, which was also significantly different from snow sampled in the …


Annual Departures From Average Annual Precipitation In Nebraska, 1850-1983, Conservation Survey Division Jan 1984

Annual Departures From Average Annual Precipitation In Nebraska, 1850-1983, Conservation Survey Division

Conservation and Survey Division

No abstract provided.


Annual Outflow Of Water From Nebraska, 1950-1983, Conservation Survey Division Jan 1984

Annual Outflow Of Water From Nebraska, 1950-1983, Conservation Survey Division

Conservation and Survey Division

No abstract provided.


Inventory Of Irrigation Water Use In Box Butte County, Nebraska 1981, D. R. Lawton, L. L. Leahon Jan 1984

Inventory Of Irrigation Water Use In Box Butte County, Nebraska 1981, D. R. Lawton, L. L. Leahon

Conservation and Survey Division

No abstract provided.


Water Erosion On Potato Land During The 1983 Growing Season Donnybrook, D J. Mcfarlane Jan 1984

Water Erosion On Potato Land During The 1983 Growing Season Donnybrook, D J. Mcfarlane

Resource management technical reports

Soil losses over a three month period varied from 10 to 49 mm.. Soil loss was most highly correlated with length of slope of the plots. Other important factors appeared to be slope angle and soil textures. Grade furrows appear to be the best method of breaking-up long slope lengths. The low capacity of the furrows requires them to be on grades of about 4 to 4 per cent to prevent siltation and overtopping during high density storms.