Bivariate relationships of diversity, stand factors with ecosystem functions and stability
Both stand biomass and productivity were strongly correlated with DBHmax (r = 0.68 ~ 0.92), at each grain size from 400 to 2500 m2 (Table 1). However, they were only occasionally related to diversity indices significantly, except for FRic, which still showed correlations markedly lower than DBHmax. In contrast, the stabilities of biomass and productivity were significantly related to diversity at most grain sizes, especially for richness metrics (taxonomic, phylogenetic and functional richness), but were rarely related to stand factors. These results imply that stand factors may be the main drivers for forest biomass and productivity, while diversity may be mainly responsible for their temporal stability.