Simple Water Measuring Device for On Farm Irrigation Evaluation
Laboratory experiments were conducted for the calibration of three flumes of different sizes. The logarithmic transformation in linear regression yielded excellent results for the stage-discharge...
Delivering Appropriate Quantities of Water to the Farm
To study how well an irrigation district was able to meet farmer demand, water deliveries along two monitored lateral canals were compared to the orders and bills for these events. The...
Effects of Surface Drainage on Sediment Yield in Southern Delaware
Sediment surveys were conducted over a period of 16 years on two small reservoirs in the Nanticoke River basin, Delaware in order to assess the effects of watershed drainage projects on...
Soil Water Movement in Glacial Till: A Case Study in Central South Dakota
Between 1985 and 1987, the CENDAK Drainage Steering Committee conducted several investigations to assess the drainage needs for a proposed large-scale irrigation project in central South...
Evaluating Groundwater Pollution Potential Using Geographical Information Systems
A procedure for developing groundwater pollution potential maps using a geographical information system (GIS) is introduced. The concept of pollution potential mapping is discussed, along...
Strategies to Reduce Salt Load in Drainage Water
A study of irrigation efficiency, drainage flow and trace element loading in the drainage water from a 14000 ha irrigation district on the west side of the San Joaquin Valley of California...
Reduction of Deep Percolation and Drain Water
Management of irrigated agriculture for control of toxic trace elements in agricultural drainage waters must include consideration of a variety of factors and their interactions with one...
Deep Percolation, Drainage and Water Quality
The purpose of this study is to illustrate and and qualitatively describe results of steady and transient numerical simulations examining the influence of drain spacing and depth on shallow...
Artificial Recharge in the Southern Ogallala?Experiences with Playa Lake Water and Filter Underdrains
Ground water in southern portions of the Ogallala Aquifer has declined significantly over the past several years. Attempts to recharge playa water in the past have failed due to the clogging...
Expediting the Evaluation of Water-Rights Applications in the Mimbres Basin, NM
More than eighty percent of all ground water used in New Mexico is used for agriculture. The allocation of ground water in the state is the responsibility of the State Engineer. For the...
Innovative Ways of Meeting California's Water Needs
The California State Water Project has contracted to sell 4.2 million acre-feet of water per year. But, the annual dependable project yield is only about 2.4 million acre-feet. And the...
Landslides and Cherry Trees -- Upgrading the Dalles Irrigation District
The Dalles Irrigation District recently began the process of applying for a federal loan to finance upgrading of the District's distribution system. The process included preparation...
Economic factors of Drainage Water Reduction
Properly designed and maintained pressurized systems provide better irrigation control and greater infiltration uniformity. But irrigation costs are increased. Imposition of drainage water...
Blending Saline and Non-Saline Waters Reduces Water Usable for Crop Production
The purpose of this paper is to provide theoretical and conceptual evidence to show that water quality protection programs which dispose of agricultural drainage waters through blending...
Kesterson Crisis: Sorting Out the Facts
The United States Bureau of Reclamation (USBR) began planning and construction activities in the mid-1960's for the San Luis Drain, a master drain to dispose of salt-laden...
Treatment, Reuse and Disposal of Drain Waters
Treatment, reuse and disposal options of agricultural drainage water present formidable technical problems. Various treatment technologies and disposal methods have been studied. Reuse...
Prognosis on Managing Trace Elements
Management options assessed for trace elements discharged from irrigated lands include source control, drainwater reuse, drainwater treatment and removal of contaminants, disposal, and...
Location, Design, and Construction of Water Wells
Proper location, design, and construction of water wells are important to assure their efficient operation and minimize maintenance problems. Detailed and accurate records of the design...
Mapping Ground-Water Sodium Adsorption Ratios in Northern Louisiana
High sodium concentration is suspected as the cause of several crop failures in the northern part of Louisiana. This study, using Geographic Information Systems (GIS) technology, was undertaken...
Water Quality Criteria for Cyanide in the Similkameen River, British Columbia
The toxicological and environmental significance of the major cyanide compounds is discussed. Data from earlier bioassays studies of cyanide are summarised and the ranges of median lethal...
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