Bar graph of understory light environment by sampling location and tree species at study site in NC. Sampling location and season on x-axis. Understory light environment on y-axis.

Figure 9. Understory light environment (% incident photosynthetic active radiation, PAR) as a function of tree, sampling location, and season of the year at the CEFS silvopasture in Goldsboro, North Carolina. By sampling location, bars followed by different lowercase letters are significantly different (P ≤ 0.05).