One of the more interesting talks that I've heard over the years on grazing or silvopasturing was by Dr. Gene Garrett at the 2011 Northeast Silvopasture Conference titled: Silvopasture Ecosystem Services.  A copy of the presentation is archived at: https://cpb-us-e1.wpmucdn.com/blogs.cornell.edu/dist/d/5957/files/2015/03/Ecosystem_services_silvopasture_G.Garrett.UMCA-2b0vnxc.pdf  This article on…