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About LTAR Research

The Long-Term Agroecosystem Research (LTAR) Network is designed to address national issues related to agricultural production, sustainability, off-site effects, and socioeconomic impacts on rural communities as affected by climate. More on the LTAR science plan can be found in our Shared Research Strategy.



The USDA Agricultural Research Service (ARS) Long-Term Agroecosystem Research network consists of 18 Federal and university agricultural research sites with an average of over 50 years of history. The goal of this research network is to ensure sustained crop and livestock production and ecosystem services from agroecosystems, and to forecast and verify the effects of environmental trends, public policies, and emerging technologies.