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Articles 2341 - 2370 of 2540
Full-Text Articles in Water Resource Management
Water Supplies : Dams And Roaded Catchments, W J. Burdass, T. R. Negus, A. L. Prout, I. A. F. Laing
Water Supplies : Dams And Roaded Catchments, W J. Burdass, T. R. Negus, A. L. Prout, I. A. F. Laing
Journal of the Department of Agriculture, Western Australia, Series 4
Western Australia's Upper and Lower Great Southern statistical areas include most of the broad-scale agricultural land south of a line from Perth to Hyden. Much of the area is well-developed and carries 13.4 million sheep, 203 00 cattle and 95 000 pigs, almost half the State's livestock.
There are few natural rivers and lakes to water livestock in summer and much of the bore water is salty. On-farm waterr conservation, therefore, consits mainly of excavated earth tanks (dams) which are filled by surface runoff or shallow seepage. In the drier areas and in the sandplain roaded catchments have neen built …
Northern Wheatbelt Water Supply Study, I A F Laing, R. M. Pridham
Northern Wheatbelt Water Supply Study, I A F Laing, R. M. Pridham
Journal of the Department of Agriculture, Western Australia, Series 4
Department of Agriculture surveys have shown that many farms in Western australia's northern wheatbelt have inadequate water supplies. More than 80 per cent of all farms in that area depend soley on groundwater for watering livestock, a much higher percentage than for most other farming areas. Because groundwater salinities have increased in recent years, concern is held for the long-term future of this recource.
In contrast to more southern agricultural areas, farm dams in the northern wheatbelt are relatively uncommon. Only 30 per cent of the existing dams in the northern wheatbelt constitute effective water supplies. More than half of …
Increasing Groundwater Salinity In The Northern Wheatbelt, R J. Mcgowan
Increasing Groundwater Salinity In The Northern Wheatbelt, R J. Mcgowan
Journal of the Department of Agriculture, Western Australia, Series 4
Every farmer in western Australia's northern wheatbelt will know of a groundwater supply, be it bore, well or soak. that has become increasingly saline. The groundwater may have become more saline over a period of 15 years or more, or have been noticed only recently. Inevitably, the bore will lie within an area cleared for agriculture. This increase in groundwater salinity may be associated with soil salinisation. Although researchers have some understanding of the processes causing salinisation of groundwater in the wheatbelt and the extent of the problem, little is known about the rates of salinisation and groundwater rise. A …
Small Mammal Populations And Rodent Damage In Nebraska No-Tillage Crop Fields, Kent E. Holm
Small Mammal Populations And Rodent Damage In Nebraska No-Tillage Crop Fields, Kent E. Holm
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
House Mouse Populations And Their Damage To Common Building Insulations, Daryl D. Fisher
House Mouse Populations And Their Damage To Common Building Insulations, Daryl D. Fisher
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
A Study Of The Crayfish Orconectes Immunis In An Intermittent Nebraska Stream, John J. Shadle
A Study Of The Crayfish Orconectes Immunis In An Intermittent Nebraska Stream, John J. Shadle
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
Groundwater Quality And Mineral Deposits Relationships In The Ozark Mountains, Kenneth F. Steele
Groundwater Quality And Mineral Deposits Relationships In The Ozark Mountains, Kenneth F. Steele
Arkansas Water Resources Center Technical Reports
Ninety-nine groundwater sites were sampled in northern Arkansas in order to determine the effect of local manganese, phosphate, pyrite, lead-zinc and uranium mineralization on the groundwater chemistry. Most of this study (75 springs) was concentrated in the Batesville manganese district. Hydrogeochemical exploration for these types of manganese deposits appears possible with 44 percent of the springs within 2000 feet of mineralization having anomalous metal concentrations (especially manganese). Because only a few springs were sampled in the remaining areas, the results are not conclusive; however, only the pyrite and small lead-zinc deposit would appear worthy of additional investigation. None of the …
Finite Element Simulation Of Saturated-Unsaturated Subsurface Flow, George E. Blandford
Finite Element Simulation Of Saturated-Unsaturated Subsurface Flow, George E. Blandford
KWRRI Research Reports
A two-dimensional transient model for flow through saturated-unsaturated porous media is developed, The model numerically solves the pressure head dependent or moisture content dependent form of Richard's equation. The model code uses isoparametric quadratic triangular and/or quadrilateral finite elements for the geometric representation and for the weak Galerkin spacial integrations. An implicit, unconditionally stable single-step numerical time integration scheme with an oscilliatory noise reduction option is utilized for the temporal discretization. The highly efficient symmetric skyline (profile) solution scheme is used to solve the resulting simultaneous equations. The nonlinear subsurface flow parameters are approximated using cubic spline interpolation. The element …
Discharge And Travel Time Determinations In The Royal Spring Groundwater Basin, Kentucky, John Thrailkill, Douglas R. Gouzie
Discharge And Travel Time Determinations In The Royal Spring Groundwater Basin, Kentucky, John Thrailkill, Douglas R. Gouzie
KWRRI Research Reports
Groundwater flow in many karst regions, including the Inner Bluegrass Karst Region of central Kentucky in which the study area was located, is unlike groundwater flow in granular aquifers. At least the major flows are turbulent and often with a free surface in large conduits, and applying concepts based on Darcy's Law to describe and model these flows is inappropriate. Parameters such as linear velocity, channel geometry, and conveyance used to describe surface streamflows are more applicable, and the primary objective of the project was to estimate these in a groundwater basin using the travel time of dye slugs and …
Identification Of Soil-Water Chemical Parameters For The Prediction And Treatment Of Suspended Solids In Surface Water Reservoirs Of Coal Mine Lands, V. P. Evangelou, J. H. Grove, R. I. Barnhisel
Identification Of Soil-Water Chemical Parameters For The Prediction And Treatment Of Suspended Solids In Surface Water Reservoirs Of Coal Mine Lands, V. P. Evangelou, J. H. Grove, R. I. Barnhisel
KWRRI Research Reports
High concentrations of suspended solids in coal mine sedimentation ponds are a factor in lowering water quality. This study focuses on the influence dissolved solids have on concentration and settling of suspended solids. Water samples from sedimentation ponds in Eastern and Western Kentucky were used to evaluate water composition in such ponds. Spoil samples from surface mine sites in both parts of the state were used to evaluate water composition released from the spoils upon introducing water.
The results demonstrate that water quality emanating from coal spoils of Eastern and Western coal mines is dependent on the type of spoil …
A Bacteriological And Chemical Analysis Of Nonpoint Source Pollution In A Karst Aquifer Bowling Green, Kentucky, Wayne Green
A Bacteriological And Chemical Analysis Of Nonpoint Source Pollution In A Karst Aquifer Bowling Green, Kentucky, Wayne Green
Masters Theses & Specialist Projects
Monthly water samples collected from four sites in the Lost River Groundwater Basin, a shallow karst aquifer in the Bowling Green-Warren County area of Kentucky, represented samples from sites receiving conduit and diffuse flow. All sites were severely contaminated with bacteria, and on some occasions the surface water criteria for some heavy metals were exceeded.
Of the total 334 bacterial colonies identified 92.1% were verified as Escherichia coli by the API20E system. Acinetobacter calcoaceticus var. anitratum accounted for 2.10% of colonies; Citrobacter freundii for 0.30% Klebsiella pneumoniae for 0.90%; Klebsiella oxytoca, 0.90%; Citrobacter amalonaticus 0.30%; Enterobacter cloacae, 1.20%; …
Effects Of The Plains Pocket Gopher (Geomys Bursarius) On Hay Meadows And Irrigated Alfalfa In The Nebraska Sandhills, Patrick J. Hegarty
Effects Of The Plains Pocket Gopher (Geomys Bursarius) On Hay Meadows And Irrigated Alfalfa In The Nebraska Sandhills, Patrick J. Hegarty
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
Vital Characteristics Of The Black-Tailed Jack Rabbit In East-Central Nebraska, Rockford G. Plettner
Vital Characteristics Of The Black-Tailed Jack Rabbit In East-Central Nebraska, Rockford G. Plettner
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
Hydrochemical Data For The Truckee River Drainage System, California And Nevada, Larry V. Benson
Hydrochemical Data For The Truckee River Drainage System, California And Nevada, Larry V. Benson
United States Geological Survey: Staff Publications
Abstract
Surface-water samples were collected from the Truckee River drainage system during 1975, 1976, and 1981. Data resulting from chemical analyses of these samples, as well as certain other previously unpublished data, are tabulated in this report. The report contains the following hydrochemical data:
1. Chemical composition of 21 tributaries to Lake Tahoe and the Truckee River upstream from Farad, California (May and October 1971, and June 1972).
2. Chemical composition of the Truckee River at Tahoe City (January 1968-January 1975) and at Farad, California (January 1968-June 1980), and of the Little Truckee River upstream from Stampede Reservoir, California (January …
Investigations And Research In Nevada By The Water Resources Division, U. S. Geological Survey, 1982-83, Terry Katzer, Otto Moosburner, William D. Nichols
Investigations And Research In Nevada By The Water Resources Division, U. S. Geological Survey, 1982-83, Terry Katzer, Otto Moosburner, William D. Nichols
Publications (WR)
The Water Resources Division, U.S. Geological Survey, is charged with (1) maintaining a hydrologic network in Nevada that provides information on the status of the State's water resources and (2) engaging in technical water-resources investigations that have a high degree of transferability. To meet these broad objections, 26 projects were active in Nevada during fiscal year 1982 in cooperation with 36 Federal, State, and local agencies. Total funds were $3,319,455, of which State and local cooperative funding amounted to $741,500 and Federal funding (comprised of Geological Survey Federal and cooperative programs plus funds from six other Federal agencies) amounted to …
Disposal Of Household Wastewater In Soils Of High Stone Content (1981-1983), E. M. Rutledge, C. R. Mote, D. T. Mitchell, M. S. Hirsch, M. D. Harper, H. D. Scott, C. L. Griffis
Disposal Of Household Wastewater In Soils Of High Stone Content (1981-1983), E. M. Rutledge, C. R. Mote, D. T. Mitchell, M. S. Hirsch, M. D. Harper, H. D. Scott, C. L. Griffis
Arkansas Water Resources Center Technical Reports
Four experimental filter fields were constructed with built-in monitoring equipment in Nixa soils. These soils contain many chert fragments and a fragipan about 60 cm below the soil surface. The fragipan restricts downward movement of water and is the designlimitingfeature. The four filter fields were: 1. A "standard" filter field, 76 cm deep. The bottom of the trench was in the fragipan. 2. A "modified standard" filter field, 30 cm deep. The bottom of the trench was above the fragipan. 3. A "modified pressure" filter field, 40 cm deep. The bottom of the trench was above the fragipan. In addition, …
Water Requirement For Coal Slurry Transportation, David T. Kao, Sandra L. Rusher
Water Requirement For Coal Slurry Transportation, David T. Kao, Sandra L. Rusher
KWRRI Research Reports
The amount of water required for coal slurry transportation is a function of the coal properties and the magnitude of coal movement. The pipeline system characteristics and the method of slurry preparation also affects the overall water requirement of the system. In the present study methodologies are developed based on reported and modified coal slurry flow correlation equations to determine the quantity of water needed under various coal transport and flow conditions. Auxiliary water requirements including start-up and flushing water storage; related evaporation and seepage losses are also included. A computer program and several monographs are presented to provide a …
Methiocarb And Thiram As Thirteen-Lined Ground Squirrel Repellents In Newly Planted Corn, Ann E. Koehler
Methiocarb And Thiram As Thirteen-Lined Ground Squirrel Repellents In Newly Planted Corn, Ann E. Koehler
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
Predicting Infiltration And Surface Runoff From Reconstructed Spoils And Soils, Larry G. Wells, Andrew D. Ward, Ronald E. Phillips
Predicting Infiltration And Surface Runoff From Reconstructed Spoils And Soils, Larry G. Wells, Andrew D. Ward, Ronald E. Phillips
KWRRI Research Reports
A laboratory system was fabricated to measure infiltration and runoff from spoil and soil profiles constructed in rectangular bins. Construction, calibration and operation of a rainfall simulator is discussed and instrumentation used to measure transient infiltration and transmittance of water through experimental profiles is described.
Spoil and soil materials from surface mines in Eastern and Western Kentucky were transported to the laboratory and used in constructing experimental profiles in rectangular bins (0.91 x 1.83 x 1.07 m). An extensive series of infiltration experiments were conducted utilizing a rainfall simulator and soil moisture monitoring instrumentation. A dual probe gamma density gauge …
Studies In Dye-Tracing Technologies In Karst Hydrogeology, John Thrailkill, Phillip E. Byrd, Stephen B. Sullivan, Lawrence E. Spangler, Charles J. Taylor, Greta K. Nelson, Kevin R. Pogue
Studies In Dye-Tracing Technologies In Karst Hydrogeology, John Thrailkill, Phillip E. Byrd, Stephen B. Sullivan, Lawrence E. Spangler, Charles J. Taylor, Greta K. Nelson, Kevin R. Pogue
KWRRI Research Reports
Information on fluorescent dyes used for water tracing and the results of six studies are reported. Optical brightener, direct yellow, fluorescein, rhodamine (WT), and other dyes are described and the procedures employed in their use ·in the field and in equilibration experiments are discussed. Three of the six studies consisted of investigations of the equilibration with passive detectors of three of the dyes. The absorption of optical brightener on fabric detectors was apparently linear with concentration and with immersion time, while detectors became rapidly saturated with direct yellow. Equilibrium of fluorescein on charcoal detectors with an elutriating solution was not …
Transboundary Groundwater Law: Focus On The U.S.-Mexico Boundary [Includes Appended Opinion In City Of El Paso Ex Rel. Pub. Serv. Bd. V. Reynolds, Civ. No. 80-730 Hb, 563 F. Supp. 279 (D.N.M. 1983)], Albert E. Utton
Groundwater: Allocation, Development and Pollution (Summer Conference, June 6-9)
48 pages.
Federal And Indian Reserved Rights To Groundwater [Outline], Robert S. Pelcyger
Federal And Indian Reserved Rights To Groundwater [Outline], Robert S. Pelcyger
Groundwater: Allocation, Development and Pollution (Summer Conference, June 6-9)
6 pages.
Comparative Approaches To Groundwater Management, Robert D. Hayton
Comparative Approaches To Groundwater Management, Robert D. Hayton
Groundwater: Allocation, Development and Pollution (Summer Conference, June 6-9)
38 pages.
Problems Of Interstate Allocation Of Groundwater, Charles E. Corker
Problems Of Interstate Allocation Of Groundwater, Charles E. Corker
Groundwater: Allocation, Development and Pollution (Summer Conference, June 6-9)
41 pages.
Ground Water Monitoring System And Procedures At Kin-Buc I Landfill Middlesex County New Jersey, Dan D. Raviv
Ground Water Monitoring System And Procedures At Kin-Buc I Landfill Middlesex County New Jersey, Dan D. Raviv
Groundwater: Allocation, Development and Pollution (Summer Conference, June 6-9)
37 pages (includes illustrations and map).
Groundwater Management Under The Florida Water Resources Act, Richard Hamann
Groundwater Management Under The Florida Water Resources Act, Richard Hamann
Groundwater: Allocation, Development and Pollution (Summer Conference, June 6-9)
44 pages (includes maps).
Groundwater And Intergovernmental Relations In The Southern San Joaquin Valley, California, Sally K. Fairfax, Barbara T. Andrews
Groundwater And Intergovernmental Relations In The Southern San Joaquin Valley, California, Sally K. Fairfax, Barbara T. Andrews
Groundwater: Allocation, Development and Pollution (Summer Conference, June 6-9)
25 pages (includes maps).
Ogallala Ground Water, Morton W. Bittinger
Ogallala Ground Water, Morton W. Bittinger
Groundwater: Allocation, Development and Pollution (Summer Conference, June 6-9)
12 pages.
The San Luis Valley Groundwater Dispute, David Harrison, Jeris Danielson
The San Luis Valley Groundwater Dispute, David Harrison, Jeris Danielson
Groundwater: Allocation, Development and Pollution (Summer Conference, June 6-9)
25 pages (includes illustrations and map).
Groundwater Quality: The Issues, Remedies And Strategies, Kathleen M. Kulasza
Groundwater Quality: The Issues, Remedies And Strategies, Kathleen M. Kulasza
Groundwater: Allocation, Development and Pollution (Summer Conference, June 6-9)
34 pages.