Evaluating the Relationship Between Timber and Forage Yields in a Loblolly Pine-Switchgrass Silvopastoral System

Abstract

As forest and agricultural landowners look to increase revenue streams and diversify risk, agroforestry systems could be viable land use options. Silvopasture is an agroforestry system that integrates the production of timber and livestock. Silvopasture is practiced globally and has great potential in the US South. Implementation of silvopastoral systems can vary, depending on landowner objectives. This investigation focuses on the relationship between timber (loblolly) and forage (switchgrass) yields for a non-industrial private landowner in Robeson County, NC. Managing for both silvopasture products presents establishment challenges and a nuanced understanding of how tree growth will affect forage yields over time. With careful planning, it appears that a silvopastoral system can be designed in which landowners can meet their objectives and balance yields from both products. In addition, the achievement of financial diversification through integration of both systems might be possible.