Effects of plant intraspecific variation on the prediction of C<sub>3</sub>/C<sub>4</sub> vegetation ratio from carbon isotope composition of topsoil organic matter across grasslands

Wentao Luo, Xiaoguang Wang, Karl Auerswald, Zhengwen Wang, Michael I. Bird, Christopher J. Still, Xiao-Tao Lü and Xingguo Han

J Plant Ecol . 2021, (4): 628 -637 . DOI: 10.1093/jpe/rtab022