Two independently developed simulation models – the grassland-specific PaSim and the biome-generic Biome-BGC MuSo were compared in a simulation of carbon and water fluxes. The results were assessed against eddy-covariance flux data from five observational grassland sites representing a range of conditions in Europe: Grillenburg in Germany, Laqueuille in France with both extensive and intensive management, Monte Bondone in Italy and Oensingen in Switzerland. The two models roughly match weekly GPP and RECO, but differ in their sensitivity to climate change factors.
Sandor et al.: Modelling of grassland fluxes ... Find the paper here: "http://www.sciencedirect.com/science/article/pii/S0167880915300670" or search in References.