Hydrologic Aspects of Saline Water Table Management in Regional Shallow Aquifers
Abstract
This chapter considers hydrologie factors associated with irrigation and drainage in regions with saline shallow ground water. Soil water flow processes and the importance of regional analysis are described. Results of a simulation model which accounts for major processes governing shallow water table behavior in salinity-affected regions are discussed. The model is used to analyze the effects of irrigation-drainage management on water table depth, salinity, crop yield, and net economic returns to the grower over a 20-year planning period. Stochastic elements associated with soil hydraulic properties and irrigation applications have been incorporated into this model. These additions to the model indicate the importance of parameter uncertainty and enable results to be interpreted with the notions of stability and risk.
Keywords
Root Zone Vadose Zone Water Application Upward Flow Irrigation EfficiencyPreview
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