Drainage Design for Water Quality Management: Overview

Drainage design for water quality management in irrigated areas requires use of hydrodynamic models that delineate flow paths of subsurface water moving to drains. Use of only traditional drainage design equations for protection against water logging and salinization are inadequate for water quality...

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Bibliographic Details
Published in:Journal of irrigation and drainage engineering 1997-05, Vol.123 (3), p.148-153
Main Authors: Guitjens, J. C, Ayars, J. E, Grismer, M. E, Willardson, L. S
Format: Article
Language:English
Subjects:
AGRICULTURA DE REGADIO
Agricultural and forest climatology and meteorology. Irrigation. Drainage
Agronomy. Soil science and plant productions
AGUA DE DRENAJE
AGUA DE RIEGO
Biological and medical sciences
CALIDAD DEL AGUA
CONCEPTION
CULTURE IRRIGUEE
DEBIT
DESIGN
DISCHARGE
DISENO
drainage discharge
DRAINAGE SOUTERRAIN
DRAINAGE SYSTEMS
DRAINAGE WATER
DRENAJE SUBTERRANEO
EAU D'IRRIGATION
EAU DE DRAINAGE
Environmental protection
EQUATIONS
FLOW RATE
FLOW TO DRAINS
Freshwater
Fundamental and applied biological sciences. Psychology
GASTO
General agronomy. Plant production
GESTION DES EAUX
HIDRODINAMICA
HYDRODYNAMICS
HYDRODYNAMIQUE
Infiltration
IRRIGATED FARMING
Irrigation
IRRIGATION WATER
Irrigation. Drainage
LEACHING
LESSIVAGE DU SOL
LIXIVIACION
MATEMATICAS
MATHEMATICAL MODELS
MATHEMATICS
MATHEMATIQUE
MODELE MATHEMATIQUE
MODELOS MATEMATICOS
ORDENACION DE AGUAS
Q1
QUALITE DE L'EAU
RED DE DRENAJE
RESEAU DE DRAINAGE
SIMULACION
SIMULATION
SOLUTE
solute transport
SOLUTES
SOLUTO
SUBSURFACE DRAINAGE
TECHNICAL PAPERS
WATER MANAGEMENT
Water pollution control
WATER QUALITY
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Description
Summary:Drainage design for water quality management in irrigated areas requires use of hydrodynamic models that delineate flow paths of subsurface water moving to drains. Use of only traditional drainage design equations for protection against water logging and salinization are inadequate for water quality management; these equations should be coupled with mechanistic models that account for transport and chemical changes in the vadose and saturated zones that replace those associated with a leaching fraction, or requirement concepts. Drainage designs should now make use of hydrodynamic and chemical models that simulate flow and transport of water and chemical constituents from infiltration to drainage discharge. Management should be able to manipulate the models prior to implementing steps aimed at controlling the quantity and quality of drainage discharge.
ISSN:0733-9437
1943-4774
DOI:10.1061/(ASCE)0733-9437(1997)123:3(148)