Comparison of the Chapman-Richards Function with the Schnute model in stand growth

Abstract

The Chapman-Richards Function and its two exception cases in applications were discussed and compared with the Schnute model in stand growth studies. Compared from all perspective, it was found that the Schnute model commonly used in forestry was identical to the Chapman-Richards function. If some parameter in the Chapman-Richards Function was unconstraint, the function could also be very versatile to fit some exceptional growth curves, the fitted function should be identical to that the Schnute model.

Keywords

Chapman-Richards Function / Schnute model / Stand growth / Model fitting