Supplementary materials for "<b>Linking root phosphatase activity to root chemical and morphological traits across species: a global analysis"</b>

<b>Linking root phosphatase activity to root chemical and morphological traits across species: a global analysis</b>Gukailin Ao,¹ Changlin Xu,¹ Xudong Wang,¹ Mengguang Han,¹Biao Zhu^1,2*<br>¹ State Key Laboratory of Vegetation Structure, Function and Construction (VegLab), Ministry of Education Key Laboratory of Earth Surface Processes, and College of Urban and Environmental Sciences, Peking University, Beijing, China.²Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, Inner Mongolia Key Laboratory of Grassland Ecology, and School of Ecology and Environment, Inner Mongolia University, Huhhot, China.