Journal of Irrigation and Drainage Engineering: Recent submissions
Now showing items 281-300 of 3826
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Water Requirement and Crop Coefficients of Young <i>Jatropha curcas</i> L. Trees in a Subtropical Humid Environment
(ASCE, 7/1/2021)Long-term and continuous crop evapotranspiration (ETc) and the crop coefficient (Kc) of jatropha (Jatropha curcas L.), which are needed to determine irrigation requirements, are lacking. The objective of this study was to ... -
Development of a New Practical Formula for Pipe-Sizing Problems within the Framework of a Hybrid Computational Strategy
(ASCE, 5/1/2021)A hybrid programming methodology was proposed to derive a simple empirical formulation for the estimation of the required pipe diameter in the sizing problems (Type 3) of pipe distribution systems. The model was derived ... -
Grate Inlet Hydraulic Efficiency with Varying Porous Asphalt Aprons
(ASCE, 6/1/2021)Grate inlets collect surface runoff from the roadway and other land surfaces and connect to a drainage network. Surface runoff that does not discharge to a drainage system because of insufficient inlet capacity can cause ... -
Evaluating Soil Water Redistribution under Mobile Drip Irrigation, Low-Elevation Spray Application, and Low-Energy Precision Application Using HYDRUS
(ASCE, 6/1/2021)A study to assess soil water redistribution under mobile drip irrigation (MDI), low-energy precision application (LEPA), and low-elevation spray application (LESA) was conducted under a center-pivot irrigation system. Water ... -
Deficiencies in the Curve Number Method
(ASCE, 5/1/2021)This study investigates the relationship between the curve number and regional rainfall characteristics, and also determines the extent to which intrastorm application of the curve number method is likely to generate ... -
Characteristics of Water Surface Profile over Rectangular Side Weir for Supercritical Flows
(ASCE, 5/1/2021)The supercritical flow over a side weir is a type of spatially varied flow with decreasing discharge. Most studies of side weir flows are limited to the estimation of the discharge coefficients, and less attention has been ... -
Dynamics of Water Allocation: Tradeoffs between Allocator’s and Farmers’ Benefits of Irrigation Practices
(ASCE, 6/1/2021)Water dependencies and agricultural expansion have led to a remarkable increase in water demand. Proper management of water supply and demand is a crucial challenge in planning for sustainable development. Because the ... -
Experimental Study of PhiX174 Resuspension from Mobile Bed Sediment
(ASCE, 5/1/2021)PhiX174 (or ΦX174) is a spherical single-stranded DNA bacteriophage used as a surrogate to study viral enteric pathogens in the environment. The resuspension of viral pathogen from bed sediment in irrigation canals impairs ... -
Prediction of the Incipient Motion of Sediment Entrainment via a Novel Hybrid Geno-Fuzzy Approach with Experimental Investigations
(ASCE, 5/1/2021)The current state of the art on how the circular cross-section shape of a rigid boundary channel affects the incipience of sediment entrainment is not well investigated in the literature. Moreover, the incipience of sediment ... -
Development of Aerial Photos and LIDAR Data Approaches to Map Spatial and Temporal Evolution of Ditch Networks in Peat-Dominated Catchments
(ASCE, 4/1/2021)Spatiotemporal information on historical peatland drainage is needed to relate past land use to observed changes in catchment hydrology. Comprehensive knowledge of historical development of peatland management is largely ... -
Experimental Study on the Performance of a Sand Filtration Method and Device by Using Natural Soils and Subsurface PVC Drainage Pipes
(ASCE, 4/1/2021)Drip irrigation is an efficient water-saving irrigation technique. However, the clogging of emitters is a major problem for drip irrigation systems that adversely affects the uniformity of water distribution and lowers the ... -
Air Entrainment Mechanism in the Vortex Structure: Experimental Study
(ASCE, 5/1/2021)Vortex drop structure is used to convey water through underground conduits in urban sewers and drainage systems. During the plunge, a large volume of air is entrained into the water and then is released from the drop shaft ... -
Influence of Saline Water Irrigation on Root Distribution, Wheat Yield, and Soil Salinity
(ASCE, 4/1/2021)The development of irrigated agriculture in northwest China is restricted by shortages of fresh water and groundwater salinization. Saline water irrigation may cause salt accumulation in the soil, which results in salt ... -
Use of 2D/3D Models for Cohesive and Noncohesive Sediments in Irrigation Canals
(ASCE, 5/1/2021)Sediment deposition in irrigation systems results in the disruption of water distribution and thereby high maintenance costs. The vast majority of studies on the behavior of cohesive and noncohesive sediments have been ... -
Improvement in the Estimation of Daily Net Surface Radiation in China
(ASCE, 3/1/2021)Earth’s surface net radiation (Rn) governs sensitive and latent heat fluxes, plant photosynthesis, and the terrestrial carbon cycle. However, Rn records are scarce in China. The accurate quantification of Rn is therefore ... -
Comparison of Seepage Models Applied to Design of Trapezoidal Infiltration Trenches and Basins
(ASCE, 4/1/2021)In designing infiltration trenches or basins, the focus is usually on runoff conveyance and water quality, with less attention to optimizing infiltration and seepage to increase stormwater management efficiency. Four ... -
Hydraulics of Rotary Gate: Novel Structure for Semicircular Canals
(ASCE, 4/1/2021)In this study, a new structure named a rotary gate is introduced to control and measure the flow in canals having a semicircular or semielliptical cross section. A pivot rod, connected to the centerline of the gate and to ... -
Bivariate Drought Characterization of Two Contrasting Climatic Regions in India Using Copula
(ASCE, 3/1/2021)This study aims to construct the multiple time-scale joint distributions of drought duration and severity using two-dimensional copulas and compare the drought characteristics in India’s two contrasting climate regions: ... -
Discharge Coefficients for Rectangular Broad-Crested Gabion Weirs: Experimental Study
(ASCE, 3/1/2021)Weirs are commonly used for making discharge measurements in irrigation canals. There are several types of weirs that are categorized based on their geometric shape or hydraulic properties. A gabion weir is a porous weir ... -
Evaluating the Performance of Self-Organizing Maps to Estimate Well-Watered Canopy Temperature for Calculating Crop Water Stress Index in Indian Mustard (<i>Brassica juncea</i>)
(ASCE, 2/1/2021)The crop water stress index (CWSI) is a reliable indicator of water status in plants and has been utilized for stress monitoring, yield prediction, and irrigation scheduling. Despite this, however, its use is limited because ...