Disentangling the Relationship between Tree Biomass Yield and Tree Diversity in Mediterranean Mixed Forests

Tree biomass and the diversity relationship in mixed forest have an impact on ecosystem services provisions. yield is driven by several aspects such as species identity, site condition, stand density, tree age expressed mingling structural diversity. By comparing diverse degrees of mixtures natural forests, we can gain insight into provision level dynamic. Two monitoring sites Castilian Northern Plateau (Spain) been analyzed to disentangle relationships between biodiversity levels yield. permanent one hectare (ha) squared plots were established at Llano de San Marugán Valdepoza. In each plot, all individual trees measured (diameter height), georeferenced its identity defined. two Pinus sylvestris, nigra, pinea, Quercus pyrenaica, ilex, faginea Juniperus thurifera. From these datasets, ten indices that fall three categories (species richness indices, compositional/mingling vertical indices) used predictor variables fit candidate models. merging (without considering identity) selected models include basal area explanatory variable combining addition or interaction with indices. When are independently, impacts combination (additive multiplicative) size negative for nigra positive other species.