Evaluation of modeled global vegetation carbon dynamics: Analysis based on global carbon flux and above-ground biomass data

•Integrated Biosphere Simulator Model (IBIS) could reproduce gross primary productionwith acceptable accuracy at site and global levels.•IBIS can reproduce comparable total above ground biomass (AGB); whereas, discrepancies were observed between the model-derived and observed spatial patterns of AGB.•The differences among the AGB spatial patterns were mainly caused by the single-parameter set of the model used.•Different meteorological inputs can also introduce substantial differences in AGB on the global scale.