Document Archive

Legacy network documentation, proposals, and site summaries

Past Documents

LTAR Site Proposals and Executive Summaries

ABOUT LTAR

 

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.