Functional evenness of N-to-P ratios of evergreen-deciduous mixtures predicts positive non-additive effect on leaf litter decomposition

Aims The effects of litterdiversity on litterdecomposition remain debated. We tested to what extent the community-weighted means ( CWM; functional composition) versus Rao’s dissimilarity of litternitrogen (N)-to-phosphorus (P) ratios explain the non-additive mixture effect on decomposition rate (k) and associated N release.