Calcium plus magnesium indicates digestibility: the significance of the second major axis of plant chemical variation for ecological processes

Data file contains 2 sheets with following information: (1) simultaneous measurements of plant biomass properties and vegetation records from field sampling of two long-term grassland management experiments in 2011-2012; plant species abbreviations consist of first three letters from the genus name and first three letters from the species name; community weighted traits were calculated from species biomass proportions and their respective trait values extracted from databases or literature (can be found in supporting information of the article: Appendix S1); (2) List of species abbreviations and respective scientific names. Plant names follow nomenclature: Kubát, K., Hrouda, L., Chrtek, J., Kaplan, Z., Kirschner, J. & Štěpánek, J. (2002) Key to the Flora of the Czech Republic. Academia, Praha, Czech Republic