Correction: Process strengths determine the forms of the relationship between plant species richness and primary productivity

In the Materials and Methods section, there is an error in the first equation under the section titled “Combination model.” Please view the complete, correct equation here:

$$\frac{dP}{ds}=u\left(s\right)P+m\left(s\right)P‑\tau DP+\mu R_{\mathrm{a}}P$$