Table 1 Effects of soil amendment or soil horizon on ECM taxonomic diversity (Shannon index) and functional diversity. The TD was calculated as \( H\prime = - \sum \left( {\left( {Ni/N} \right) \times \log 2\left( {Ni/N} \right)} \right) \), where Ni was the abundance of the species i and N the total number of individuals

From: Secreted enzymatic activities of ectomycorrhizal fungi as a case study of functional diversity and functional redundancy