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ARS Home Plains Area Lubbock, Texas Cropping Systems Research Laboratory Wind Erosion and Water Conservation Research Research Publications at this Location





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Title:   Author  item
                                            Gitz, Dennisitem
                                            Zobeck, Teddy
  Submitted to: Meeting Abstract
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 12/7/2004
                                    Publication  Date: 12/7/2004
                                    Citation: Gitz, D.C., Zobeck, T.M. 2004. Prospects for enhancing aquifer recharge and protecting ground-water quality using a playa forage production system. Proceedings High Plains Groundwater Resources: Challenges and Opportunities Conference. p. 12-18.Interpretive Summary:
                                Technical Abstract: The predominate hydrological surface features of the Llano Estacado are the approximately 30,000 playa lakes which serve as runoff catchments from the surrounding watershed during large precipitation events. The majority of the regional Ogallala aquifer recharge volume enters through these playa lakes, but recharge is very slow due to the relatively impermeable clay which comprises the lake-beds. Engineering schemes to increase infiltration through playa lake-beds have generally either failed or have proven economically impractical. Protecting groundwater quality is also a concern given the low rates of aquifer recharge in the region and the potential for agrochemical runoff into playas. We describe work currently underway which attempts to increase aquifer recharge and protect groundwater quality by using eastern gamagrass in a rain-fed forage production system employing playa lakes as precipitation catchment basins.


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