Global C4 distribution estimate constrained by observations and optimality theory
Xiangzhong Luo, National University of Singapore, Department of Geography, Singapore, Singapore, Haoran Zhou, Yale University, Department of Ecology & Evolutionary Biology, New Haven, United States, Trevor F Keenan, Lawrence Berkeley National Laboratory, Climate and Ecosystem Sciences Division, Berkeley, United States and Stephen Sitch, University of Exeter, College of Life and Environmental Sciences, Exeter, United Kingdom
