Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Arkansas, Fayetteville (450)
- University of Nebraska - Lincoln (440)
- University of Colorado Law School (198)
- Department of Primary Industries and Regional Development, Western Australia (118)
- University of Nevada, Las Vegas (95)
-
- Nova Southeastern University (71)
- Portland State University (42)
- University of Southern Maine (20)
- Chapman University (17)
- University of North Florida (17)
- Old Dominion University (15)
- SIT Graduate Institute/SIT Study Abroad (14)
- City University of New York (CUNY) (12)
- Central Washington University (10)
- University of Massachusetts Boston (8)
- California Polytechnic State University, San Luis Obispo (7)
- Center for the Blue Economy (6)
- Louisiana State University (5)
- University of South Florida (5)
- Western Kentucky University (5)
- Wilfrid Laurier University (5)
- The University of Southern Mississippi (4)
- University of Kentucky (4)
- Augustana College (3)
- Claremont Colleges (3)
- Clemson University (3)
- Purdue University (3)
- University of Central Florida (3)
- University of Rhode Island (3)
- Utah State University (3)
- Keyword
-
- Water quality (171)
- Drought (137)
- Arkansas (94)
- United States (92)
- Climate change (91)
-
- Western Australia (88)
- Groundwater (82)
- Water (76)
- Thermal energy (71)
- Meyer-Roney OTEC Library (70)
- OTEC (70)
- OTEC Liaison (70)
- Ocean energy (70)
- Ocean thermal energy conversion (70)
- Oceanography (70)
- Richard Meyer (70)
- Colorado (64)
- West (64)
- Western water law (54)
- Salinity (50)
- Solar Ocean Energy Liaison (49)
- Water management (48)
- California (44)
- Climate (44)
- Water law (43)
- Agriculture (42)
- Hydrology (41)
- Arizona (39)
- Irrigation (38)
- Wyoming (38)
- Publication Year
- Publication
-
- Arkansas Water Resources Center Technical Reports (362)
- National Drought Mitigation Center: Faculty Publications (134)
- The OTEC Liaison (70)
- 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)
- Resource management technical reports (61)
- Publications (WR) (52)
- Nebraska Water Center: Faculty Publications (47)
- Graduate Theses and Dissertations (33)
- The Future of Natural Resources Law and Policy (Summer Conference, June 6-8) (28)
- Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5) (26)
- Shifting Baselines and New Meridians: Water, Resources, Landscapes, and the Transformation of the American West (Summer Conference, June 4-6) (23)
- Coping with Water Scarcity in River Basins Worldwide: Lessons Learned from Shared Experiences (Martz Summer Conference, June 9-10) (22)
- Water, Climate and Uncertainty: Implications for Western Water Law, Policy, and Management (Summer Conference, June 11-13) (22)
- Center for Lakes and Reservoirs Publications and Presentations (21)
- Journal of the Arkansas Academy of Science (21)
- Natural resources published reports (15)
- Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences (14)
- Independent Study Project (ISP) Collection (14)
- State of the River Report (14)
- UNLV Theses, Dissertations, Professional Papers, and Capstones (14)
- Navigating the Future of the Colorado River (Martz Summer Conference, June 8-10) (13)
- The Promise and Peril of Oil Shale Development (February 5) (13)
- Best Management Practices (BMPs): What? How? And Why? (May 26) (11)
- Opportunities and Obstacles to Reducing the Environmental Footprint of Natural Gas Development in Uintah Basin (October 14) (10)
- Shale Plays in the Intermountain West: Legal and Policy Issues (November 12) (10)
- Arkansas Water Resource Center Fact Sheets (9)
- Biology, Chemistry, and Environmental Sciences Faculty Articles and Research (9)
- Dissertations and Theses (9)
- Publication Type
- File Type
Articles 1231 - 1260 of 1650
Full-Text Articles in Water Resource Management
Water Resources Studies Along The Arkansas-Oklahoma Border, Kenneth F. Steele
Water Resources Studies Along The Arkansas-Oklahoma Border, Kenneth F. Steele
Arkansas Water Resources Center Technical Reports
The watershed approach to water resource issues recently has been re-discovered. Scientists and managers recognize the need to consider the entire watershed when delineating and solving today's water resource problems. A simple example is the effect that streams have on the ultimate "health" of a reservoir. Although technically the term watershed should be used only in reference to surface water, the importance of ground water is included in the watershed approach to problems. In recognition that we all "live upstream and downstream," the Arkansas Water Resources Center and the Oklahoma Water Resources Institute sponsored a conference titled "Water Resource Studies …
Completion Report: Arkansas State Pesticides In Ground Water Monitoring Project Phase Iv: Eastern Arkansas (Pulaski, Lee And Jackson Counties), T. Nichols, P. Vendrell, K. Steele, H. D. Scott, C. Armstrong
Completion Report: Arkansas State Pesticides In Ground Water Monitoring Project Phase Iv: Eastern Arkansas (Pulaski, Lee And Jackson Counties), T. Nichols, P. Vendrell, K. Steele, H. D. Scott, C. Armstrong
Arkansas Water Resources Center Technical Reports
In 1995, fifty-two water samples were drawn from 49 new wells and 2 wells that had been previously sampled during earlier phases. These included twenty samples from 19 wells in eastern Pulaski County, thirteen wells in Lee County, 16 wells in Jackson County, two wells in Lonoke County, one well in Crittenden County and resamples of two wells in Woodruff County. Figure 1 shows the locations of the 3 counties where the majority of the samples were taken and Figures 2-4 show the monitoring locations withing these counties. The wells were tested for nitrate and 13 pesticides listed in Table …
Relating United States Crop Land Use To Natural Resources And Climate Change, K. G. Hubbard, F. J. Flores-Mendoza
Relating United States Crop Land Use To Natural Resources And Climate Change, K. G. Hubbard, F. J. Flores-Mendoza
National Drought Mitigation Center: Faculty Publications
Crop production depends not only on the yield but also on the area harvested. The yield response to climate change has been widely examined, but the sensitivity of crop land use to hypothetical climate change has not been examined directly. Crop land-use regression models for estimating crop area indices (CAIs) - the percent of land used for corn, soybean, wheat, and sorghum production - are presented. Inputs to the models include available water-holding capacity of the soil, percent of land available for rain-fed agricultural production, annual precipitation, and annual temperature. The total variance of CAI explained by the models ranged …
Remnant Vegetation Inventory On The Southern Agricultural Areas Of Western Australia., G R. Beeston, G Mlodowski, A Sanders, D True
Remnant Vegetation Inventory On The Southern Agricultural Areas Of Western Australia., G R. Beeston, G Mlodowski, A Sanders, D True
Resource management technical reports
Remnant vegetation mapping and its incorporation into a Geographical Information System (GIS) data base is the first stage in an overall documentation and promotion of conservation of remnant vegetation in Western Australia. The primary objective of this project being to determine the amount, distribution and regional location of native vegetation remaining on private land in the agricultural area of south-west Western Australia.
Arkansas' Wellhead Protection Program, With Discussion Of Delineation Methodology, Robert Cordova, Bobby Makin
Arkansas' Wellhead Protection Program, With Discussion Of Delineation Methodology, Robert Cordova, Bobby Makin
Journal of the Arkansas Academy of Science
The Wellhead Protection (WHP) program was authorized by the 1986 Amendments to the Safe Drinking Water Act. The Arkansas Department of Health in July, 1986, was designated by Governor Clinton to be the lead agency in carrying out the WHP program. The program is designed to protect the ground-water resource tapped by public water-supply wells from contaminants which are injurious to the public health. It is the first formal attempt by the federal government in its environmental protection role to prevent contamination from taking place, in contrast to costly clean-up or remediation programs. Among its several requirements, the program includes: …
Determination Of The Seasonal Changes In Nitrate And Phosphate Concentration And Phytoplankton Composition Within Selected Fertilized Lakes, Richard L. Meyer
Determination Of The Seasonal Changes In Nitrate And Phosphate Concentration And Phytoplankton Composition Within Selected Fertilized Lakes, Richard L. Meyer
Arkansas Water Resources Center Technical Reports
No abstract provided.
Baseline Water Quality Data Inventory And Analysis: Lake Mead National Recreation Area, Volume Ii Of Ii, National Park Service
Baseline Water Quality Data Inventory And Analysis: Lake Mead National Recreation Area, Volume Ii Of Ii, National Park Service
Publications (WR)
This document presents the results of surface-water-quality data retrievals for Lake Mead National Recreation Area (LAME) from five of the United States Environmental Protection Agency's (EPA) national databases: (1) Storage and Retrieval (STORET) database management system; (2) River Reach File (RF3); (3) Industrial Facilities Discharge (IFD); (4) Drinking Water Supplies (DRINKS); and (5) Flow Gages (GAGES). This document is one product resulting from a cooperative contractual endeavor between the National Park Service's Servicewide Inventory and Monitoring Program, the National Park Service's Water Resources Division (WRD), and Horizon Systems Corporation to retrieve, format, and analyze water quality data for all units …
Baseline Water Quality Data Inventory And Analysis: Lake Mead National Recreation Area, Volume I Of Ii, National Park Service
Baseline Water Quality Data Inventory And Analysis: Lake Mead National Recreation Area, Volume I Of Ii, National Park Service
Publications (WR)
This document presents the results of surface-water-quality data retrievals for Lake Mead National Recreation Area (LAME) from five of the United States Environmental Protection Agency's (EPA) national databases: (1) Storage and Retrieval (STORET) database management system; (2) River Reach File (RF3); (3) Industrial Facilities Discharge (IFD); (4) Drinking Water Supplies (DRINKS); and (5) Flow Gages (GAGES). This document is one product resulting from a cooperative contractual endeavor between the National Park Service's Servicewide Inventory and Monitoring Program, the National Park Service's Water Resources Division (WRD), and Horizon Systems Corporation to retrieve, format, and analyze water quality data for all units …
The Moore's Creek Monitoring Project, D. R. Edwards, T, C, Daniel, J. F. Murdoch, P. F. Vendrell, D. J. Nichols
The Moore's Creek Monitoring Project, D. R. Edwards, T, C, Daniel, J. F. Murdoch, P. F. Vendrell, D. J. Nichols
Arkansas Water Resources Center Technical Reports
No abstract provided.
Phosphorus Immobilization In Poultry Litter And Litter-Amended Soils With Aluminum, Calcium And Iron Amendments, D. M. Miller, P. A. Moore Jr., T. C. Daniels
Phosphorus Immobilization In Poultry Litter And Litter-Amended Soils With Aluminum, Calcium And Iron Amendments, D. M. Miller, P. A. Moore Jr., T. C. Daniels
Arkansas Water Resources Center Technical Reports
Arkansas produces approximately one billion broilers each year. Phosphorous (P) runoff from fields receiving poultry litter is believed to be one of the primary factors affecting water quality in Northwest Arkansas. Poultry litter contains approximately 20 g P kg-1, of which about 2 g P kg-1 is water soluble. Soils that have received repeated heavy applications of litter may have water soluble P contents of as high as 10 mg P Kg-1 soil. The objective of this study was to determine if soluble P levels could be reduced in poultry litter and litter-amended soils with Al,Ca, and/or Fe amendments. Poultry …
Bulletin 4279 - Streamlining - An Environmentally Sustainable Drainage Network For The Swan Coastal Plain (Peel-Harvey Catchment), Garry Heady, Neil Guise
Bulletin 4279 - Streamlining - An Environmentally Sustainable Drainage Network For The Swan Coastal Plain (Peel-Harvey Catchment), Garry Heady, Neil Guise
Bulletins 4000 -
Community Catchment Centre Pinjarra
A network of over 1400 kilometres of drains and modified natural waterways constructed by the Public Works Department criss-crosses the Peel-Harvey catchment. There are also over 3300 kilometres of minor drains and natural waterways in this same region.
The expansion of agriculture relied on this extensive drainage network, which was designed to ensure rapid drainage of the region. Unfortunately there was little regard to future environmental consequences.
Along with drainage water, these same drains now carry high loads of silt and nutrients. Many of the drains are also degraded and require expensive maintenance annually.
The Prediction Of Sediment And Nutrient Transport In The Buffalo River Watershed Using A Geographic Information System, H. D. Scott, P. A. Smith
The Prediction Of Sediment And Nutrient Transport In The Buffalo River Watershed Using A Geographic Information System, H. D. Scott, P. A. Smith
Arkansas Water Resources Center Technical Reports
The Buffalo River was established by Congress in 1972 as the first National River in the United States. It is one of the few remaining free-flowing streams in northern Arkansas. The river originates in the higher elevations of the Boston Mountains in Newton County, and generally flows northeastward, intersecting the Springfield and Salem Plateaus as it drops from approximately 2000 feet in the headwaters to around 500 feet at the confluence with the White River in Marion County. It is considered by many to be one of Arkansas' greatest natural treasures, and therefore , there is strong interest in protecting …
Correlating Soil Test Phosphorus Losses In Runoff, D. H. Pote, T. C. Daniel, P. A. Moore Jr., D. J. Nichols, D. R. Edwards, A. N. Sharpley
Correlating Soil Test Phosphorus Losses In Runoff, D. H. Pote, T. C. Daniel, P. A. Moore Jr., D. J. Nichols, D. R. Edwards, A. N. Sharpley
Arkansas Water Resources Center Technical Reports
Phosphorus in agricultural runoff is often a major cause of accelerated eutrophication of lakes and streams. Previous research has indicated that the amount of dissolved P (DP) in runoff is directly related to P content of the surface soil. Decades of fertilizer application at rates exceeding those of crop uptake have elevated soil test P (STP) levels in areas of intensive crop and livestock production, making this the major source of DP loss in runoff. The objective of our experiment was to relate STP content of Captina silt loam to P concentration and loss in runoff, and determine which STP …
Assessment Of Effectiveness Of Buffer Zones In Removing Impurites In Runoff From Areas Treated With Poultry Litter, I. Chaubey, D. R. Edwards, T. C. Daniels
Assessment Of Effectiveness Of Buffer Zones In Removing Impurites In Runoff From Areas Treated With Poultry Litter, I. Chaubey, D. R. Edwards, T. C. Daniels
Arkansas Water Resources Center Technical Reports
Land application of animal manures (e.g. poultry litter, poultry manure, and swine manure) to pasture and range can lead to runoff quality degradation during storms that occur soon after application. Vegetative filter strips (VFS) have been shown to reduce pollution in runoff from row-cropped areas but have not been extensively studied in pasture and range settings. This research involved characterizing performance of fescue VFS in improving quality of runoff from pasture land areas treated with poultry litter and swine manure. The VFS were found to be quite effective in reducing off-site transport of ammonia nitrogen (NH3-N), total Kjeldahl nitrogen (TKN), …
Study Of Existing Information Concerning Water Quality Within Lake Mead, Vicki Scharnhorst, Southern Nevada Water Authority
Study Of Existing Information Concerning Water Quality Within Lake Mead, Vicki Scharnhorst, Southern Nevada Water Authority
Publications (WR)
The purpose of Task 010A15M of the Southern Nevada Water Authority (SNWA) Treatment and Transmission Facility (TTF) contract is to conduct a study of existing information concerning water quality within Lake Mead and identify additional water quality studies that are needed to supplement existing data. The objective of this task is not to discuss treatability of the raw water source; this is addressed by Task 010A18M, "Define Water Treatment Requirements." In addition, a narrative on the effect of pending Safe Drinking Water Act amendments and a determination of treated water quality goals is included in Task 010A16M, "Review Safe Drinking …
Bulletin 4278 - How To Use Wide Furrow Sowing For Improved Crop Production On Water Repellent Sand, Paul Blackwell, Grant Morrow, Tony Webster
Bulletin 4278 - How To Use Wide Furrow Sowing For Improved Crop Production On Water Repellent Sand, Paul Blackwell, Grant Morrow, Tony Webster
Bulletins 4000 -
Wide furrow sowing is a method for successfully establishing crops of lupins or cereals on non-wetting sands, and improving crop establishment on non-repellent sands. The same principles can be used to assist establishment of fodder shrubs and long-term pasture (e.g. tagasaste and Rhodes grass).
Ground Water Monitoring Project For Arkansas, Phase Iii, Kenneth F. Steele, Steven S. Hill, Terry W. Nichols, H. Don Scott, Paul Vendrell, H. S. Lin
Ground Water Monitoring Project For Arkansas, Phase Iii, Kenneth F. Steele, Steven S. Hill, Terry W. Nichols, H. Don Scott, Paul Vendrell, H. S. Lin
Arkansas Water Resources Center Technical Reports
This report is composed of two parts. The first part is an interpretation of the pesticide and nitrate data collected in Woodruff County based on samples collected during 1994. Because there is an indication that there were hydrological differences between 1994 and 1995, and because most of the pesticide data is from 1994, this interpretive portion is restricted to 1994 data. Six wells initially sampled in 1994 that contained pesticides had continuing contamination in re-sampling in 1994 and 1995. Part II lists a seventh well in Woodruff County that contained pesticides in February and May of 1995
Sport Fisheries Of The Belgrade Lakes, Maine Department Of Inland Fisheries & Wildlife
Sport Fisheries Of The Belgrade Lakes, Maine Department Of Inland Fisheries & Wildlife
Maine Collection
Sport Fisheries of the Belgrade Lake
Maine Department of Inland Fisheries & Wildlife, Augusta, Maine 1994.
Contents: Belgrade Lakes Chain, Some Vital Statistics / Some Features of the Seven Major Waters of the Belgrade Chain of Lakes / A Partial List of Fish Species That Occur in the Major Waters of the Belgrade Chain of Lakes / East Pond Oakland and Smithfield / Great Pond Oakland, Belgrade, and Rome / Long Pond Mt. Vernon, Rome, and Belgrade / Messalonskee Lake Oakland and Belgrade / North Pond Smithfield, Rome, and Mercer / Salmon Lake and McGrath Pond Belgrade and Oakland
Identification Of Tire Leachate Toxicants And A Risk Assessment Of Water Quality Effects Using Tire Reefs In Canals, S. M. Nelson, G. Mueller, D. C. Hemphill, U.S. Bureau Of Reclamation
Identification Of Tire Leachate Toxicants And A Risk Assessment Of Water Quality Effects Using Tire Reefs In Canals, S. M. Nelson, G. Mueller, D. C. Hemphill, U.S. Bureau Of Reclamation
Publications (WR)
Cover is an important component of aquatic habitat and fisheries management. Fisheries biologists often try to improve habitats through the addition of natural and artificial material to improve cover diversity and complexity. Habitat-improvement programs range from submerging used Christmas trees to more complex programs using sophisticated artificial habitat modules. Used automobile tires have been employed in the large scale construction of reefs and fish attractors in marine environments and to a lesser extent in freshwater and have been recognized as a durable, inexpensive and long-lasting material which benefits fishery communities.
Recent studies by the U.S. Bureau of Reclamation have quantified …
Directory Of Water Resource Experts At Arkansas Universities And Colleges, Kenneth F. Steele
Directory Of Water Resource Experts At Arkansas Universities And Colleges, Kenneth F. Steele
Arkansas Water Resources Center Technical Reports
The objective of this publication is to identify those faculty and staff scientists in the universities and colleges of Arkansas who are actively conducting research on water resource issues and problems. Undoubtedly, we have omitted several such researchers, but hopefully, a second edition of this publication will be more complete.
Arkanasas Water Resources Center Evaluation Report Fy 1988-Fy 1992, Kenneth F. Steele
Arkanasas Water Resources Center Evaluation Report Fy 1988-Fy 1992, Kenneth F. Steele
Arkansas Water Resources Center Technical Reports
Since the beginning of the Arkansas Water Resources Center the overall program has been focused on helping local, state and federal agencies learn to manage Arkansas' water resources. AWRC has contributed substantially to the State's water resources via research and training of students. Through the years, projects have included topics concerned with irrigation, ground water modeling, non-point source pollution (including sediment erosion), water quality, efficient septic tank design, and ecosystems. Information on water research and other water-resource information is disseminated by the Center through public presentations, conferences, and publications. Since 1980, an average of more than 15 principal investigators a …
Determination Of The Efficacy Of Fertilization Practices On Bob Kidd Lake, Richard L. Meyer, Jeanette K. Shipley-Phillips
Determination Of The Efficacy Of Fertilization Practices On Bob Kidd Lake, Richard L. Meyer, Jeanette K. Shipley-Phillips
Arkansas Water Resources Center Technical Reports
Fertilization strategies have been used as a standard practice on Bob Kidd and other lakes and reservoirs to enhance the availability of phytoplankton and zooplankton as food sources for developing fish. The nominal practice is to use a fixed application rate and a constant ratio of nitrogen and phosphorus fertilizer per acre of lake surface. The application technique varies as does the timing. Application techniques vary from spillage and bulk deposition of fertilizer at selected sites to broadcasting of pellets or a pre-mixed slurry via boat and/or airplane. Timing is usually in the spring under appropriate weather conditions.
Nutrient Content Of Runoff Water From Rice Fields, C. E. Wilson Jr., P. A. Moore Jr., R. J. Norman, B. R. Wells
Nutrient Content Of Runoff Water From Rice Fields, C. E. Wilson Jr., P. A. Moore Jr., R. J. Norman, B. R. Wells
Arkansas Water Resources Center Technical Reports
Current perception is that nutrient runoff from croplands is a significant contributor to poor water quality in some areas. While extensive research has been conducted to survey and ameliorate this problem for several upland crops, little work has been done to evaluate the problem with flooded rice (Oryza sativa, L.) soils. Since rice production utilizes a major portion of the total irrigation water usage for certain areas, it is important to understand the contribution of rice production to non-point source N and P in surface water. Several production fields were selected to evaluate the concentrations of nutrients in the floodwater …
The Influence Of Reservoir Basin Morphometry On Phytoplankton Community Structure, Richard L. Meyer, G. Keith Trost
The Influence Of Reservoir Basin Morphometry On Phytoplankton Community Structure, Richard L. Meyer, G. Keith Trost
Arkansas Water Resources Center Technical Reports
The research protocol was designed to compare three reservoirs with similar physical environments but different morphometry. Three reservoirs on the western edge of the Ozark uplift were selected because of their similar substrate and climatic condition. The reservoirs primarily differed in morphometry. Two of the reservoirs were of identical size, Bob Kidd and Prairie Groves Lakes, but of different configuration, semicircular and linear, respectively. The bifurcated lake, Lincoln Lake, was of smaller size. Each lake is dimictic. Each of the lakes were nitrate-N limited while soluble reactive phosphorus-P is available and not restricting the growth of phytoplankton. Although the pattern …
Prediction And Management Of Sediments Load And Phosporus In The Beaver Reservoir Watershed Using A Geographic Information System, J. M. Mckimmey, H. D. Scott
Prediction And Management Of Sediments Load And Phosporus In The Beaver Reservoir Watershed Using A Geographic Information System, J. M. Mckimmey, H. D. Scott
Arkansas Water Resources Center Technical Reports
A study was conducted to compile a GIS database for the Beaver Reservoir Watershed and then use the database to run the Universal Soil Loss Equation and the Phosphorus Index Model on the War Eagle Creek Watershed, a portion of the Beaver Reservoir Watershed database. Characterization of the spat i a 1 properties of the primary attributes compiled for the watershed were reported. In addition, water quality samples taken from War Eagle Creek were analyzed for relationships across the watershed. Erosion in the watershed was lower than expected with well vegetated and fertilized pastures contributing to the reduction of annual …
Completion Report: Pesticide And Nitrate Monitoring Results For Craighead, Mississippi, And Poinsett Counties, Arkansas: Phase Ii, Kenneth F. Steele, William R. Clayton, Terry W. Nichols, Paul F. Vendrell
Completion Report: Pesticide And Nitrate Monitoring Results For Craighead, Mississippi, And Poinsett Counties, Arkansas: Phase Ii, Kenneth F. Steele, William R. Clayton, Terry W. Nichols, Paul F. Vendrell
Arkansas Water Resources Center Technical Reports
Because of the concern for potential contamination of ground water by agricultural chemicals, 38 wells drilled in the Mississippi River Valley alluvial aquifer in Mississippi County and the eastern parts of Craighead and Poinsett Counties, Arkansas were analyzed for pesticides and nitrate. The pesticide, fluometuron, was detected in one sample at a concentration of 0.5 mg/L. Bentazon was detected in three samples at concentrations of 2.5, 0.3, and 0.3 mg/L. The occurrences of the pesticides appear to represent isolated incidents rather than a widespread aquifer contamination. All detections were below health and safety standards. Nitrate is present in several wells …
Effect Of Drying On Cyromazine Loss From Surface-Applied Caged-Layer Manure, T. C. Daniel, D. H. Pote, D. R. Edwards
Effect Of Drying On Cyromazine Loss From Surface-Applied Caged-Layer Manure, T. C. Daniel, D. H. Pote, D. R. Edwards
Arkansas Water Resources Center Technical Reports
In Arkansas, much of the environmental concern related to water quality has focused on the high volume of poultry fecal waste spread on the surf ace of local pastures to fertilize forage grass. Cyromazine (N-cyclopropyl-1,3,5-triazine-2,4,6- triamine), a feed-through larvicide used to control house flies (Musca domestica), is often a component of caged-layer manure. Cyromazine is quite soluble and stable in water, and previous research has shown that it can be readily washed from pasture plots by intense rainfall. Therefore, a study was conducted to evaluate increased drying time as a best management practice technique for reducing cyromazine runoff losses from …
Computer Simulation Model Calibration And Validation For Prediction Of Water Quality Impacts Of Poultry Waste Disposal, D. R. Edwards, T. C. Daniel
Computer Simulation Model Calibration And Validation For Prediction Of Water Quality Impacts Of Poultry Waste Disposal, D. R. Edwards, T. C. Daniel
Arkansas Water Resources Center Technical Reports
Runoff and water quality data collected from two pairs of grazed fields in northwestern Arkansas were analyzed to support efforts to model runoff quality from areas receiving poultry manure and other fertilizer sources. The monitoring period described in this report was September 1, 1991 to April 30, 1993. One of each pair of fields was fertilized with inorganic fertilizer, and the other received either poultry litter or manure. Losses of fertilizer constituents were quite low from an agronomic standpoint, ranging from approximately 2-11 kg N/ha/year and 0.5-4.1 kg P04-P/ha/year. Annual losses of fertilizer constituents were dominated by only a small …
Effects Of Domestic Wastewater Effluent On The Water Quality And Aquatic Macroinvertebrates In A Sharp County, Arkansas Stream, Linda E. Moss, George L. Harp
Effects Of Domestic Wastewater Effluent On The Water Quality And Aquatic Macroinvertebrates In A Sharp County, Arkansas Stream, Linda E. Moss, George L. Harp
Journal of the Arkansas Academy of Science
The purpose of this study was to determine whether the effluent of the Ash Flat Wastewater Treatment Plant changes the water quality or aquatic macroinvertebrate community structure of North Big Creek. Weekly water samples were analyzed for pH, N, P, COD, TSS and fecal coliform bacteria from 17 June to 19 August 1992. Aquatic macroinvertebrates were collected biweekly using a Turtox Indestructible™ Dip Net, and density indices were calculated. Station 1, above the effluent, was a spring habitat. Fecal coliform, N, P, TSS and COD values were higher at this station, while the aquatic macroinvertebrate community was relatively simple. The …
Ichthyofauna Of A Cypress-Tupelo Swamp, Veryl V. Board, Charlotte Allen, Andrea Reeves
Ichthyofauna Of A Cypress-Tupelo Swamp, Veryl V. Board, Charlotte Allen, Andrea Reeves
Journal of the Arkansas Academy of Science
No abstract provided.