Chapter 9 - Modelling mixed forest stands: Methodological challenges and approaches

Abstract

Abstract Mixedwoods are increasingly becoming one of the major focuses in ecological modelling studies, due to their higher productivity and resiliency compared to monocultures. In this chapter, we provide a review on the state-of-the-art of models simulating mixedwood stands. After reviewing almost 400 peer-reviewed publications, it is clear that most modelling exercises are done for explanatory uses rather than for decision-making support tools. Among them, North America and central Europe are the main model development centers. It is also clear that more model portability is needed, as even the most widely distributed models tend to be used in the same region where they were originally developed. Finally, the four models used more widely for simulating mixed forests stands were identified: two have been applied mostly in boreal/temperate ecosystems (FORECAST and SILVA), whereas the other two have been used in tropical/subtropical environments (FORMIND and FORMIX). A comparison of their different modelling approaches is provided, and multimodel exercises are suggested as a way to both compare model performance and also to reduce simulation uncertainty due to model selection.