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The USDA ARS National Sedimentation Laboratory (NSL), Oxford, Mississippi serves as the lead research facility in the Lower Mississippi River Basin for the Long Term Agro-ecosystem Research (LTAR) network. 


In 2014 the USDA-ARS Long-term Agroecosystem Research (LTAR) Network accepted a proposal for the Lower Mississippi River Basin (LMRB) to become a contributing member of the network administered and led by researchers from the National Sedimentation Laboratory in Oxford, MS. The Lower Mississippi LTAR represents a cross-disciplinary collaboration of researchers from multiple ARS locations across the LMRB with the aim of identifying and addressing long-term challenges to sustainable agriculture in the region.






The national LTAR Network currently comprises 18 locations across the United States representing distinct agricultural regions.








Delta Flux is a network of cooperating researchers employing eddy covariance towers on agricultural land to assess water, carbon and GHG fluxes across the Lower Mississippi River Basin. [eventually link to page]