Abstracts

Efficacy of Innovative Surface Water Capture and Irrigation Re-use Technologies as a Best Management Practice: A Multi-seasonal Assessment in the Mississippi Delta Region

Author(s): Omer, A.; Kröger, R.

The Mississippi Alluvial Valley is the center for agricultural crop production in the Southeast United States. The necessity for irrigation to maintain maximum yields has led to increased pressure placed on the Mississippi Alluvial Aquifer resulting in a negative balance. As a method of water management, surface water capture and irrigation re-use systems are being implemented into agriculture systems in Mississippi. However, the environmental and economic benefits of these systems have yet to be described and quantified. The main objective of this research is to describe and quantify the potential benefits of surface water capture and irrigation re-use systems for water resource conservation. Four sites located in the Mississippi Delta Region which utilize water capture and irrigation re-use systems will be assessed by monitoring: pumping schedules of re-lift stations, water level of on-farm storage reservoirs and flows of surface water irrigation pumps through irrigation meters. This data will be compared to systems using strictly ground water to understand water saving differences. Three years of data will be used to quantify a water savings budget and assess at a regional scale the contributions of surface water capture to decrease ground water withdrawals. The water savings budget in addition to the potential energy savings will be combined to provide an economic analysis of water capture and irrigation re-use systems. The results of this research will be used to create an economic analysis to provide valuable outreach material for dissemination to Mississippi producers. This potentially will lead to further implementation of water capture and irrigation re-use systems throughout Mississippi.

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