Short article introducing it:
New Agroforestry Report Offers Flexible Solutions for Farmers
https://www.fs.fed.us/rmrs/news-releases/new-agroforestry-report-offers-flexible-solutions-farmers

The document itself:
Agroforestry: Enhancing Resiliency in U.S. Agricultural Landscapes Under Changing Conditions
https://www.fs.fed.us/research/publications/gtr/gtr_wo96.pdf