Fig. 6From: Large-scale forest inventories of the United States and China reveal positive effects of biodiversity on productivitySensitivity of stand productivity (m3 · ha−1 · yr−1) to species richness for 15 forest types (each panel represents one type of forest) across the 48 contiguous U.S. states and Alaska. Solid lines represent predicted means of different forest types and broken lines the 95 % confidence interval of the predicted means, with stand basal area being kept constant at its sample meanBack to article page