Evaluation and inversion of a net ecosystem carbon exchange model for grasslands and croplands

Michael Herbst1, Anne Klosterhalfen2, Lutz Weihermueller3, Alexander Graf4, Marius Schmidt5, Johan Alexander Huisman6 and Harry Vereecken4, (1)Forschungszentrum Juelich GmbH, Institute of Bio- and Geosciences - Agrosphere (IBG 3), Juelich, Germany, (2)University of Göttingen, Göttingen, Germany, (3)Forschungszentrum Jülich, IBG-3: Agrosphere, Jülich, Germany, (4)Agrosphere (IBG-3), Institute of Bio- and Geosciences, Forschungszentrum Jülich, Juelich, Germany, (5)Agrosphere Institute (IBG-3), Forschungszentrum Jülich, Jülich, Germany, (6)Agrosphere Institute (IBG-3) Forschungszentrum Jülich, Deutschland, Germany