Ground Water · 1970 · 21 citations · 2 references
Groundwater QualityEnvironmental MonitoringEngineeringLand UseSoil SalinityAgricultural EconomicsNitrate ContentLand DegradationWater AvailabilityAgricultural Water ManagementWater Chemical PropertiesTrends Beneath UrbanPublic HealthSoil ScienceIrrigationWater QualityStatistical EvaluationEnvironmental EngineeringAgricultural ZoneUrban ZoneNutrient Management
ABSTRACT The salinity and nitrate content of well water for an urban zone (Fresno‐Clovis, California) and the immediate surrounding irrigated agricultural zone were compared using data for 1950 through 1967. Time trends in these water chemical properties were evaluated statistically by dividing the 18‐year period into three 6‐year periods. Salinity of the urban zone ground water has increased with time, whereas that of the agricultural zone has fluctuated considerably. Possible reasons for changes are discussed. The nitrate content of well water from both zones has increased with time, with water from the agricultural zone showing the greatest increase. Key words; ground‐water degradation; salinity; nitrate.
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