Parametric Controls on Vegetation Responses to Biogeochemical Forcing in the CLM5

Future projections of land carbon uptake in Earth System Models are affected by land surface model responses to both CO 2 and nitrogen fertilization. The Community Land Model, Version 5 (CLM5), contains a suite of modifications to carbon and nitrogen cycle representation. Globally, the CLM5 has a larger CO 2 response and smaller nitrogen response than its predecessors. To improve our understanding of the controls over the fertilization responses...