Relative importance of stand factors vs. diversity
The optimal model obtained by model selection based on all (sub)plots
showed that (Table 3), for stand biomass and productivity,
DBHmax was the most powerful predictor at each grain
size (as indicated by the
chi-square or F values).
Meanwhile, diversity indices entered the models only occasionally and
revealed weak effect. For ecosystem stability, however, diversity
indices play a dominant role at all grain sizes, while stand factors
were excluded from all models.