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1	Analysis of surface water for irrigation in the Big Sunflower River Watershed Brock, Meredith Lynn 30 April 2021 (has links) Exploitation of groundwater and excess nutrient runoff are major issues plaguing agriculture and streams in the Lower Mississippi River Basin, and increased irrigation intensity has yielded a proportionate increase in water use. Quantifying the use and effects of conservation practices like on-farm water storage (OFWS) systems will justify continued adoption of these practices to mitigate groundwater decline and nutrient runoff. Since 2010, over 795 hectares of surface water storage has been added in the Big Sunflower River Watershed, and analysis of aquifer saturation shows a recent rise in the water table and a decrease in seasonal water table drawdowns. Modeling pre- and post- construction conditions of a small agricultural subwatershed shows little difference in runoff at the watershed outlet after the construction of an OFWS system, but field monitoring and modeling show more water retained within the system and the importance of management to maximize the benefits of conservation practices. Big Sunflower River Watershed BMPs groundwater irrigation on-farm water storage systems tailwater recovery
2	Investigations at Kinlock (22SU526), a Freshwater Mussel Shell Ring in the Delta Region of Mississippi Carlock, James Bradley 11 December 2015 (has links) Kinlock is a freshwater mussel shell ring site located in Sunflower County in the Mississippi Delta. Little work has been done at freshwater mussel shell rings, and therefore little is known about them. This thesis uses four different data collection methods to answer questions of chronology, site layout, etc. These four methods are controlled surface collection, excavation, coring, and magnetometry. Based on the results of these methods, Kinlock was found to be a Woodland period mussel shell ring with a later Mississippian period component built on top of the shell. This later component consisted of five mounds situated around a plaza. It was also found that the plaza was planned and maintained from the Woodland period through the Mississippian period, until the site was abandoned. Sunflower River Darwinian archaeology evolutionary archaeology soil coring excavation magnetometry controlled surface collection prehistoric Woodland Period Mississippian Period plaza mound Kinlock Sunflower County Yazoo Basin Mississippi Delta settlement pattern mussel shell shell ring archaeology

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Analysis of surface water for irrigation in the Big Sunflower River Watershed

Investigations at Kinlock (22SU526), a Freshwater Mussel Shell Ring in the Delta Region of Mississippi