Fig. 2: The modeled global distribution of C4 vegetation and associated uncertainties.
From: Mapping the global distribution of C4 vegetation using observations and optimality theory
The area occupied by (a) C4 natural grasses, (c) C4 croplands and (e) all C4 vegetation (unit: % of the land surface). The uncertainties of the area abundance of (b) C4 natural grasses, (d) C4 croplands and (f) all C4 vegetation (unit: % of the land surface).
