Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Nebraska - Lincoln (979)
- University of Colorado Law School (468)
- Department of Primary Industries and Regional Development, Western Australia (364)
- University of Arkansas, Fayetteville (127)
- University of Kentucky (65)
-
- Portland State University (46)
- University of Nevada, Las Vegas (32)
- City University of New York (CUNY) (26)
- Purdue University (26)
- Utah State University (23)
- University of South Florida (22)
- University of Southern Maine (18)
- Central Washington University (16)
- Chapman University (16)
- Western Kentucky University (16)
- Missouri State University (15)
- West Virginia University (13)
- Cal Poly Humboldt (12)
- Stephen F. Austin State University (12)
- University of Montana (12)
- Illinois State University (11)
- University of New Mexico (11)
- Old Dominion University (9)
- Wilfrid Laurier University (9)
- California Polytechnic State University, San Luis Obispo (8)
- Louisiana State University (8)
- Michigan Technological University (8)
- Boise State University (7)
- University of North Dakota (7)
- Montclair State University (6)
- Keyword
-
- Western Australia (259)
- Groundwater (232)
- Drought (164)
- Salinity (156)
- United States (139)
-
- Water quality (128)
- Hydrology (122)
- Colorado (114)
- Agriculture (103)
- Hydrogeology (95)
- California (85)
- Irrigation (84)
- Geology (77)
- New Mexico (74)
- Climate change (73)
- Soil (71)
- West (69)
- Water supply (67)
- Water law (64)
- Drainage (60)
- Arizona (59)
- Conservation (59)
- Watershed management (58)
- Nebraska (56)
- Water management (56)
- Wyoming (55)
- Climate (53)
- Utah (52)
- Groundwater recharge (51)
- Surface water (50)
- Publication
-
- United States Agricultural Commodities in Drought Archive (219)
- Resource management technical reports (206)
- School of Natural Resources: Dissertations, Theses, and Student Research (192)
- National Drought Mitigation Center: Faculty Publications (136)
- Daugherty Water for Food Global Institute: Faculty Publications (109)
-
- Arkansas Water Resources Center Technical Reports (82)
- DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023) (68)
- United States Geological Survey: Water Reports and Publications (67)
- High Plains Regional Climate Center: Staff Publications (64)
- Nebraska Water Center: Faculty Publications (47)
- KWRRI Research Reports (44)
- Journal of the Department of Agriculture, Western Australia, Series 4 (43)
- Water Organizations in a Changing West (Summer Conference, June 14-16) (35)
- Natural resources published reports (29)
- New Sources of Water for Energy Development and Growth: Interbasin Transfers: A Short Course (Summer Conference, June 7-10) (29)
- Civil and Environmental Engineering Faculty Publications and Presentations (28)
- Graduate Theses and Dissertations (28)
- Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5) (26)
- Water and Growth in the West (Summer Conference, June 7-9) (24)
- Coping with Water Scarcity in River Basins Worldwide: Lessons Learned from Shared Experiences (Martz Summer Conference, June 9-10) (22)
- Dams: Water and Power in the New West (Summer Conference, June 2-4) (22)
- The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10) (22)
- Faculty Publications (21)
- Groundwater in the West (Summer Conference, June 16-18) (21)
- Sustainable Use of the West's Water (Summer Conference, June 12-14) (21)
- Western Water: Expanding Uses/Finite Supplies (Summer Conference, June 2-4) (21)
- Boundaries and Water: Allocation and Use of a Shared Resource (Summer Conference, June 5-7) (20)
- Innovations in Managing Western Water: New Approaches for Balancing Environmental, Social and Economic Outcomes (Martz Summer Conference, June 11-12) (20)
- Innovation in Western Water Law and Management (Summer Conference, June 5-7) (19)
- Moving the West's Water to New Uses: Winners and Losers (Summer Conference, June 6-8) (19)
- Publication Type
- File Type
Articles 1951 - 1980 of 2540
Full-Text Articles in Water Resource Management
Histomorphological Responses Of Red Shiner (Cyprinella Lutrensis) To Atrazine, Terbufos, And Their Mixture, Ibrahim A. Messaad
Histomorphological Responses Of Red Shiner (Cyprinella Lutrensis) To Atrazine, Terbufos, And Their Mixture, Ibrahim A. Messaad
School of Natural Resources: Dissertations, Theses, and Student Research
Alterations of normal histomorphology of fish tissues, behavior, and thermal tolerance are recognized by environmental toxicologists and fish biologists as powerful tools indicating diverse biochemical and physiological changes. Toxicity of atrazine (2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine), terbufos (S-(((1,1-dimethyl-ethyl)thio)methyl)O,O-diethyl phosphorodithioate), and their mixture to red shiner (Cyprinella lutrensis) at 23$\sp\circ$C and 30$\sp\circ$C was investigated in 14-d bioassays after 14-d acclimation. During the bioassays, fish behavior, indications of toxicosis, and external anomalies were observed. After the bioassays, the critical thermal maximum (CTM) was determined. Fish also were preserved for examinations of gill, liver, and kidney tissues using scanning electron microscopy (SEM) and light microscopy (LM). SEM …
The Effects Of Wet Meadow Fragmentation On Grassland Birds, Christopher J. Helzer
The Effects Of Wet Meadow Fragmentation On Grassland Birds, Christopher J. Helzer
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
The Use Of Bauxite Residue As A Soil Amendment In The Peel-Harvey Coastal Plain Catchment - Report On Results Of 1995 Environmental Monitoring Program, Mark Rivers
Natural resources published reports
This report was submitted in accordance with the recommendations of the Environmental Protection Authority (EPA) who have stated that a monitoring program shall be undertaken by Agriculture Western Australia within six months of the widespread use of bauxite residue as a soil amendment. Although this widespread use of bauxite residue has not yet formally commenced, pre-emptive monitoring has been undertaken in order to gain some understanding of the general environmental characteristics of the Peel-Harvey catchment and, in particular, the characteristics and quality of the water flowing through the catchment.
It represents the second annual report submitted to the EPA describing …
Western Australian Salinity Action Plan, Agriculture Western Australia, Department Of Conservation And Land Management, Department Of Environmental Protection, Water And Rivers Commission
Western Australian Salinity Action Plan, Agriculture Western Australia, Department Of Conservation And Land Management, Department Of Environmental Protection, Water And Rivers Commission
Natural resources published reports
Salinity is one of the State's most critical environmental problems, threatening major economic and social consequences. It is preventable and, in the long term, reversible. Complete elimination is not realistic, but we can dramatically reduce its impact.
Salinity is caused by replacing deep-rooted native plants with shallow-rooted crops and pastures. More rainfall passed below the root zone and accumulates as groundwater so that watertables rise. The groundwater mobilises natural salts in the soil as it rises and carries them towards the surface, eventually degrading land and streams.
Impact Of Groundwater Contamination In East Multnomah County On The Interlachen Community, Scott A. Wells, Shuguang Li, Marvin Beeson, Michael L. Cummings, Richard Pratt, Robert Leslie Annear, Karann Brandt
Impact Of Groundwater Contamination In East Multnomah County On The Interlachen Community, Scott A. Wells, Shuguang Li, Marvin Beeson, Michael L. Cummings, Richard Pratt, Robert Leslie Annear, Karann Brandt
Civil and Environmental Engineering Faculty Publications and Presentations
The Friends of Blue and Fairview Lake through the Environmental Protection Agency (EPA) Technical Assistance Grant (TAG) program contracted with Portland State University faculty and staff to provide an independent review of the groundwater contamination problem at the Boeing-Cascade site in East Multnomah County. An independent consultant, Karann Brandt, of PRC Environmental Management, Inc., was also assisting the panel with the review.
The region of groundwater contamination is a 2.5 square mile region bounded by NE Halsey Blvd. to the Columbia River and NE 178th to NE 223rd (see Figure 1). The groundwater contamination is primarily of volatile organic compounds …
Managing Pastures For Long-Term Prosperity, Hugh Pringle, Jenny Riches
Managing Pastures For Long-Term Prosperity, Hugh Pringle, Jenny Riches
Natural resources published reports
A Workshop held by the Sandstone Land Conservation District Committee
Lake Mason Station
April 1994
A workshop hosted by Sandstone Land Conservation District Committee (LCDC) was held at Lake Mason station on 28 April 1994. This workshop was based on two previous workshops hosted by the Kalgoorlie and north-eastern Goldfields LCDCs in May 1991 (Pringle et al. 1992). The success of the earlier workshops prompted the rangeland survey team in association with the Sandstone LCDC and the Kalgoorlie District Office of Agriculture Western Australia to initiate the project.
The aims were to provide a summary of local wisdom regarding pasture …
Propagation Of Juniperus For Conservation Plantings In The Great Plains, Scott Allen Lee
Propagation Of Juniperus For Conservation Plantings In The Great Plains, Scott Allen Lee
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
Bulletin 4329 - Environmental Hazards Of Farming In Western Australia, Greg Hamilton, Ian Foster, Philip M. Goulding
Bulletin 4329 - Environmental Hazards Of Farming In Western Australia, Greg Hamilton, Ian Foster, Philip M. Goulding
Bulletins 4000 -
This Bulletin is one of a series on crop establishment practices which minimise soil disturbance and improve stubble retention. In partnership with primary producers, Agriculture Western Australia 1s focussed on improved and profitable farming which conserves or improves the quality of the State's soil resources.
Agricultural land in Western Australia is naturally fragile and susceptible to degradation. Salinity and wind erosion are the most visible and significant forms of degradation, but all forms are present over large areas of agricultural land (House of Representatives Enquiry into Land Degradation in Western Australia, 1988).
The fragility of Western Australia's soils has been …
The Biology Of Alewife Alosa Pseudoharengus In Lake Ogallala, Nebraska, Eric A. Laux
The Biology Of Alewife Alosa Pseudoharengus In Lake Ogallala, Nebraska, Eric A. Laux
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
Influence Of Rice Production On The Quality Of Water In Tailwater Collection Reservoirs, R. A. Dewell, T. L. Lavy
Influence Of Rice Production On The Quality Of Water In Tailwater Collection Reservoirs, R. A. Dewell, T. L. Lavy
Arkansas Water Resources Center Technical Reports
Since maintaining high water quality standards in the state remains a high priority, monitoring for pesticides in water sources must continue. Determining the type, concentration, and characteristics of any pesticides present in water supplies are essential to the overall assessment of water quality. Five independent locations, implementing contained water management systems and recyclable water, were monitored in 1995 and 1996. Irrigation, runoff, and pond water samples were collected every 10 to 14 days between permanent flood establishment and draining. Water samples were transported to the laboratory and extracted for 16 pesticides using solid phase extraction (SPE) techniques. Quantification and confirmation …
Effects Of Zebra, Mussel, Dreissena Polymorpha Infestation On Lake Dardanelle Water Quality, Charles J. Gagen, Joseph N. Stoeckel
Effects Of Zebra, Mussel, Dreissena Polymorpha Infestation On Lake Dardanelle Water Quality, Charles J. Gagen, Joseph N. Stoeckel
Arkansas Water Resources Center Technical Reports
Zebra mussels recently invaded southern waterways including the Arkansas River. Large-scale filtration of suspended particulate matter by dense populations could alter reservoir ecosystem function. Furthermore, they attach to hard surfaces, thereby threatening normal operations of artificial structures. We designed this study to provide baseline data prior to establishment of high population levels of zebra mussels in Lake Dardanelle. The characterization of spatial and temporal variability in water quality, zooplankton, phytoplankton, and macrophytes will allow testing of several hypotheses. We sampled zebra mussel veliger and settling juvenile densities and zooplankton densities at four fixed sites and the key water quality variables …
Bioaccumulation Of Methyl Mercury Through A Food Chain, J. T. Knight
Bioaccumulation Of Methyl Mercury Through A Food Chain, J. T. Knight
Arkansas Water Resources Center Technical Reports
The bioaccumulation of mercury through the food chain has received much attention in Arkansas during the last three years. The discovery of mercury contamination and subsequent fish consumption advisories in southwest Arkansas have increased public awareness of the potential for bioaccumulation of different toxic compounds. It is postulated that the mercury problem in Arkansas is a result of methylation and resulting bioaccumulation of mercury as methyl mercury. This study was designed to derive a Bioaccumulation Factor (BAF) for mercury in a simple food chain under controlled conditions. A BAF is calculated by dividing the concentration found in the organism by …
Modeling Transport Of Colloid-Bound Herbicides And Heavy Metals To Groundwater, Anastasios D. Karathanasis, R. E. Phillips, A. K. Seta
Modeling Transport Of Colloid-Bound Herbicides And Heavy Metals To Groundwater, Anastasios D. Karathanasis, R. E. Phillips, A. K. Seta
KWRRI Research Reports
Recent studies have suggested that contaminant transport to groundwater may be enhanced by association with colloidal particles. This study evaluated the role of water dispersible colloids with diverse mineralogical composition in co-transporting selected herbicides and heavy metals through intact soil columns. Colloid recovery in the eluents ranged from 45-90% for the herbicides and 10-60% for the heavy metals. The presence of colloids enhanced the transport of atrazine by 2-18%, and metolachlor by 8-30%. The corresponding increase for Cu and Zn was 2-150 and 5-30 times, respectively. For Pb, there was essentially no elution in the absence of colloids, suggesting nearly …
Growth And Yield Of Snap Beans (Phaseolus Vulgaris L.) As Affected By Shelterbelts And Planting Dates, Mohd Nazip Suratman
Growth And Yield Of Snap Beans (Phaseolus Vulgaris L.) As Affected By Shelterbelts And Planting Dates, Mohd Nazip Suratman
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
Thermal Tolerances Of Platte River Fishes: Field And Laboratory Studies, Brett P. Fessell
Thermal Tolerances Of Platte River Fishes: Field And Laboratory Studies, Brett P. Fessell
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
Chronic Effects Of Baseflow Levels Of Atrazine On Platte River Algae, Karen J. Nelson
Chronic Effects Of Baseflow Levels Of Atrazine On Platte River Algae, Karen J. Nelson
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
Influence Of Prey Availability On Walleye (Stizostedion Vitreum), Mark T. Porath
Influence Of Prey Availability On Walleye (Stizostedion Vitreum), Mark T. Porath
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
Esperance Region Catchment Planning Strategy, John Platt, Brendan Nicholas, Rod Short, Stephen Gee
Esperance Region Catchment Planning Strategy, John Platt, Brendan Nicholas, Rod Short, Stephen Gee
Natural resources published reports
The Esperance Region Catchment Planning Strategy project was initiated by the Esperance Land Conservation District Committee.
This report provides a reference document for farmers and other land managers such as government agencies and local government, and should help them to strategically focus their catchment planning activities.
It will help land managers to identify the major catchments and land systems in their area, management issues for long term sustainability, and a regional strategy for catchment planning.
Catchment planning involves both technical and social processes.
Technically it is a process of planning the sustainable use of water resources within a catchment.
Groundwater Recharge Of The Middle Deschutes Basin, Oregon, Thomas Gene Boyd
Groundwater Recharge Of The Middle Deschutes Basin, Oregon, Thomas Gene Boyd
Dissertations and Theses
All surface water in the Middle Deschutes River basin of Oregon has already been allocated. Growth in the basin has put pressure on the Oregon Water Resources Department (OWRD) to grant an increasing number of groundwater permits. The OWRD is concerned that the allocation of too much groundwater will cause adverse effects on other groundwater users and surface water supplies and ultimately lead to groundwater depletion. For this reason, the U.S. Geological Survey is presently undertaking the first in-depth study of the groundwater resources of the basin.
As part of this USGS study, I estimated recharge rates and their distribution …
Flash-Flood Monitoring And Modeling In Kentucky, Mark French, Nageshwar Bhaskar, George K. A. Kyiamah
Flash-Flood Monitoring And Modeling In Kentucky, Mark French, Nageshwar Bhaskar, George K. A. Kyiamah
KWRRI Research Reports
This research project focused on the evaluation of hydrologic issue of flash-flooding in the state of Kentucky. The primary objectives of this project were the following:
(1) to initiate the establishment of a hydrologic database archive necessary for characterizing rainfall and runoff associated with flash-flooding;
(2) identification of appropriate modeling approaches for evaluating site-specific flash-flood runoff behavior.
Specific tasks accomplished to meet the objectives include the following:
(1) development of a rainfall and streamflow data archive using existing measurement gages and identification of the rain gage data from two sources for preliminary quality control;
(2) identification of the spatial and …
Salinity Action Plan, Department Of Agriculture And Food, Western Australia
Salinity Action Plan, Department Of Agriculture And Food, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
In November, the Premier of Western Australia, Richard Court, released his governments strategy to tackle one of the State's most serious environmental problems - salinity. This article provides a summary of the action plan, full details are available in a two volum set 'Salinity - a situation statement for Western Australia' and 'Western australian salinity action plan'.
Copies of the reports are available from Publication Section, Agriculture Western Australia, 3 Baron-Hay Court, South Perth 6151. Phone (09) 368 3729
Comparison Of Daily Water Table Depth Prediction By Four Simulation Models, Eric D. Desmond, Andrew D. Ward, Norman R. Fausey, Stephen R. Workman
Comparison Of Daily Water Table Depth Prediction By Four Simulation Models, Eric D. Desmond, Andrew D. Ward, Norman R. Fausey, Stephen R. Workman
Biosystems and Agricultural Engineering Faculty Publications
The Agricultural Drainage And Pesticide Transport (ADAPT) model was compared to the water management simulation models DRAINMOD, SWATREN, and PREFLO. SWATREN and PREFLO are one-dimensional finite-difference models while ADAPT and DRAINMOD are one-dimensional mass balance models. ADAPT, an extension of the computer model GLEAMS, also provides chemical transport information. All four models were tested against field data from Aurora, North Carolina. Observed water table depth data were collected during 1973 through 1977 from a water table management field experiment with three subsurface drain spacing treatments of 7.5, 15, and 30 m.
Both the standard error of estimate and the average …
Land Capability Assessment For The Wellington-Blackwood Survey, Peter J. Tille
Land Capability Assessment For The Wellington-Blackwood Survey, Peter J. Tille
Resource management technical reports
This report has been produced to provide more detail on the land capability assessments presented in the Wellington-Blackwood Land Resources Survey (Tille 1996). In that report, the land capability of each of the soil-landscape subsystems has been summarised with a brief description. Capability ratings are provided here for each of the map units (including subsystem phases) which appear on the two map sheets (Tille et al. 1996) accompanying the Wellington-Blackwood Land Resources Survey.
Synthetic Organic Compounds: Las Vegas Wash And Lake Mead, National Water Quality Assessment Program (Nawqa): Nevada Basin And Range
Synthetic Organic Compounds: Las Vegas Wash And Lake Mead, National Water Quality Assessment Program (Nawqa): Nevada Basin And Range
Publications (WR)
The Nevada Basin and Range (NVBR) study unit of the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program is investigating the status of, trends in, and factors affecting water quality in the Las Vegas area. A principal objective of the investigation is to assess the effects of urbanization on the quality of area water resources. Las Vegas Wash is the surface-water outlet for the Las Vegas area. The wash transports stormwater runoff, shallow ground-water discharge, and tertiary-treated sewage effluent from the Las Vegas area to Las Vegas Bay of Lake Mead on the Colorado River. Most of the flow—about 96 …
Soil Acidity. A Reference Manual., Linda Leonard, Mike D. Bolland
Soil Acidity. A Reference Manual., Linda Leonard, Mike D. Bolland
Natural resources published reports
This publication is intended as a guide for consultants, development officers and field representatives for the extension of soil acidity in Western Australia.
Most Western Australian soils are naturally acidic. Acid peaty sands in the high rainfall area of the South West are the only W.A. soils in which natural acidity has been treated routinely before productive agriculture was introduced. There are approximately 100, 000 hectares of acid, peaty sands scattered through coastal districts between Pemberton and Rocky Gully districts.
No-Till Sowing Systems In North America With Relevance To Western Australia, K J. Bligh
No-Till Sowing Systems In North America With Relevance To Western Australia, K J. Bligh
Resource management technical reports
No abstract provided.
Groundwater Study: Toyota Motor Manufacturing, Usa Georgetown, Kentucky, Gary Felton, Lyle V. A. Sendlein, Teri Dowdy, Daryl Hines
Groundwater Study: Toyota Motor Manufacturing, Usa Georgetown, Kentucky, Gary Felton, Lyle V. A. Sendlein, Teri Dowdy, Daryl Hines
KWRRI Research Reports
An eighteen month study of the Toyota Motor Manufacturing (TMM) plant site and the surrounding area was undertaken. The basic charge for this project was to characterize the groundwater that is potentially impacted by the TMM plant site. This included occurrence, flow direction, and, if possible, velocity. Because the area is karstified (has sinkholes, springs, caves, etc.) surface water and groundwater are intimately connected and, hence, surface water was frequently an important component of this work.
Data from TMM construction plans and monitoring work done subsequent to construction were elicited from the various repositories within the TMM infrastructure. Aerial color …
Survival Of Fecal Contamination Indicator Organisms In Soil, K. A. Teague, D. C. Wolf, P. F. Vendrell
Survival Of Fecal Contamination Indicator Organisms In Soil, K. A. Teague, D. C. Wolf, P. F. Vendrell
Arkansas Water Resources Center Technical Reports
Soils amended with human or animal waste may result in pathogen contamination of ground and surface water. Because temperature has been shown to affect pathogen survival, two laboratory studies were conducted to evaluate the impact of extremes in temperature on bacterial and viral pathogen indicator die-off in soil. A Captina silt loam was amended with broiler litter (0.1 g/g dry soil), septic tank effluent, or Escherichia coli (ATCC 13706) culture (both at 0.04 and 0.1 mL/g dry soil in the two respective studies), incubated at 5 and 35°C, and analyzed over time to determine the number of fecal coliform, E. …
Fish Tissue Contamination In Maine Lakes : Data Report, Jeanne Difranco, Linda Bacon, Barry Mower, David Courtemanch
Fish Tissue Contamination In Maine Lakes : Data Report, Jeanne Difranco, Linda Bacon, Barry Mower, David Courtemanch
Maine Collection
Fish Tissue Contamination in Maine Lakes : Data Report
by Jeanne DiFranco, Linda Bacon, Barry Mower and David Courtemanch
Regional Environmental Monitoring and Assessment Program (REMAP)
State of Maine Department of Environmental Protection, Bureau of Land and Water Quality, Division of Environmental Assessment, State House Station 17, Augusta, Maine 04333 (September 1995).
Contents: List of Figures and Tables / I. Introduction / II. Goals and Objectives / III. Experimental Design / IV. Methods / V. Data / VI. Quality Assurance-Quality Control / Appendices A-H
Spatial Distribution Of The Surface Geology And 1992 Land Use Of The Buffalo River Watershed, Kimberly R. Hofer, H. Don Scott, James M. Mckimmey
Spatial Distribution Of The Surface Geology And 1992 Land Use Of The Buffalo River Watershed, Kimberly R. Hofer, H. Don Scott, James M. Mckimmey
Arkansas Water Resources Center Technical Reports
The Buffalo River was established by Congress in 1972 as the first National River in the United States and is one of the few remaining free-flowing streams in Arkansas . The Buffalo River flows through the three major physiographic provinces of northern Arkansas, originating in the higher elevations of the Boston Mountains, and flowing generally northeastward to cut through the Springfield and Salem Plateaus. It drops from approximately 2000 feet in the headwaters to around 500 feet above sea level at its confluence with the White River in Marion County. The Buffalo River is considered to be one of Arkansas' …