A standardized dataset of litter chemistry and decomposition rates for dominant tree species across in South-western Europe enhancing soil carbon modelling in the Region

This dataset from sampled litterfall of the ICP Forests monitoring network provides litter chemical composition, decomposition rates, and associated environmental variables for 10 dominant forest tree species across the Iberian Peninsula. The dataset offers a unique resource for comparative studies of litter quality, nutrient cycling, decomposition, soil carbon dynamics, and forest ecosystem functioning, as well as for model development across broad environmental gradients.