Journal of Irrigation and Drainage Engineering: Recent submissions
Now showing items 1261-1280 of 3826
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Effect of the Drip Flow Rate with Multiple Manifolds on the Homogeneity of the Delivered Volume
(American Society of Civil Engineers, 2015)The reliable volumetric distribution of fertigation is vital for sustainable precision agriculture because it not only evenly distributes water in the spatial region where it is needed but also ensures rhizosphere nutrient ... -
Discussion of “Analytical Determination of Distribution Uniformity for Microirrigation Tapered Laterals Laid on Uphill and Horizontal Slopes” by Sayed Hossein Sadeghi and Troy Peters
(American Society of Civil Engineers, 2014) -
Simulation of Drainage Water Quantity and Quality Using System Dynamics
(American Society of Civil Engineers, 2014)The quantity and quality of drainage water in areas with shallow and saline groundwater changes over time until it reaches a balance. The balance time is fairly long and depends on the characteristics of the shallow aquifer. ... -
Field Test of Paved Area Reduction Factors Using a Storm Water Management Model and Water Quality Test Site
(American Society of Civil Engineers, 2014)A water quality research facility located at Parking Lot K on the Auraria campus of the University of Colorado, Denver was used to create a calibrated hydraulic model that represents rainfall and runoff from a small, ... -
Closure to “Initial Drop Velocity in a Fixed Spray Plate Sprinkler” by G. Sánchez Burillo, R. Delirhasannia, E. Playán, P. Paniagua, B. Latorre, and J. Burguete
(American Society of Civil Engineers, 2015) -
Canal‐Control Needs: Example
(American Society of Civil Engineers, 1994)The operation of a new irrigation canal system in central Arizona is described. Water is relatively expensive, and thus farmers pressure the irrigation district to improve delivery service and keep water losses to a minimum. ... -
Evaluation of Stakeholder Utility Risk Caused by the Objective Functions in Multipurpose Multireservoir Systems
(American Society of Civil Engineers, 2015)Optimal operation of reservoir systems is a challenging task in water resource management, involving stakeholders with different utilities. These utilities are conflicting, especially in a multireservoir system when the ... -
Corn Yield Simulation Using the STICS Model under Varying Nitrogen Management and Climate-Change Scenarios
(American Society of Civil Engineers, 2014)This study evaluated the performance of the simulateur multidisciplinaire pour les cultures standard (STICS) crop model for predicting grain yield and dry biomass of corn under three nitrogen (N) treatments—low, medium, ... -
Simulation of a Right Abshar Irrigation Network and Its Cropping Pattern Using a System Dynamics Approach
(American Society of Civil Engineers, 2014)Using irrigation and drainage networks will lead to greater productivity and economic benefits. In this study, using a system dynamics approach, a computer model was developed that can estimate the crop yield of an irrigation ... -
Procedures to Develop a Standardized Reference Evapotranspiration Zone Map
(American Society of Civil Engineers, 2014)The goal of this study was to define procedures needed to make a Standardized Reference Evapotranspiration ( -
Optimal Allocation of Water Resources Model for Different Growth Stages of Crops under Uncertainty
(American Society of Civil Engineers, 2014)In this study, an integrated interval nonlinear programming model based on Jensen’s water production function is proposed for the optimal allocation of water resources under uncertainty in agricultural irrigation. The model ... -
Hydraulic Performance of Aggregate Beds with Perforated Pipe Underdrains Flowing Full
(American Society of Civil Engineers, 2014)Results are presented from an experimental study of the stage discharge relationship for a porous pipe buried under loose laid aggregate. A series of steady-state experiments were performed in which the depth of flow over ... -
Monitoring Agricultural Drought Using the Standardized Effective Precipitation Index
(American Society of Civil Engineers, 2015)Drought is a natural disaster that has always had a severe impact on agriculture, especially rain-fed agriculture. Many studies have indicated that different indices, for example the standardized precipitation index (SPI), ... -
Infiltration Variability in Furrow Irrigation
(American Society of Civil Engineers, 2002)In this paper, the contribution of different sources of variability to irrigation water depth variability was quantified using a combination of variance techniques. This method was applied using field measurements from ... -
Analytical Approach Determining the Optimal Length of Paired Drip Laterals in Uniformly Sloped Fields
(American Society of Civil Engineers, 2015)Microirrigation plants, if properly designed, allow for water use efficiency to be optimized and high values of emission uniformity to be obtained in the field. Disposing paired laterals, for which two distribution pipes ... -
Off-Stream Floodplain Storage: Numerical Modeling and Experimental Analysis
(American Society of Civil Engineers, 2015)Floodplain storage should be carefully considered among the structural measures for active flood risk mitigation. Floodplain storage facilities assure an attenuation effect and consequently a significant reduction and delay ... -
Effects of Flow Depth on Water Flow and Solute Transport in Furrow Irrigation: Field Data Analysis
(American Society of Civil Engineers, 2003)Because of field-scale heterogeneity in soil hydraulic and solute transport properties, relatively large-scale experiments are now increasingly believed to be critical to better understand and predict the movement of water ... -
Molecular Oscillation Technology: New Phenomenon to Reduce Emitter Clogging in Trickle Irrigation
(American Society of Civil Engineers, 2014)The Merus ring which is made by Merus Company in Germany is a new device that can be installed on a feed pipeline to reduce emitter clogging in trickle irrigation. Merus technology works using specifically modulated molecular ... -
Effective Approach to Calculate Groundwater Return Flow to a River from Irrigation Areas
(American Society of Civil Engineers, 2014)An improved understanding of the water budget components in floodplain aquifers is necessary to implement and support water accounting requirements for use of river water. Of critical importance is the groundwater return ... -
Diverging Kinematic Wave Flow
(American Society of Civil Engineers, 2014)The governing equation for kinematic wave (KW) flow on a diverging alluvial fan is derived and presented with comparison with observed data. The key factors to describe a diverging KW flow are found to be the angle of apex, ...