effects of experimental eCO2, warming, nutrient addition and/or water addition/removal on carbon and nutrient cycle related variables New in v1.0.3: Improved accuracy and further completion of the following variables: • longitude (lon) of the experiment site (site) • latitude (lat) of the experiment site (site) • elevation (elevation) of the experiment site (site) • ecosystem type (ecosystem_type) • experiment type: field/FACE, open-top chamber, pot (experiment_type and fumigation_type) • treatment level (particularly c_c, c_t, n_c, n_t, p_c, p_t, k_c, k_t) • sampling year of the experiment (sampling_year and duration) • warming type (w_t1) • some site (site), study (study) and experiment (exp) names Response variable (response) 'leaf_area' replaced by leaf_area_leaf, leaf_area_plant, leaf_area_eco Response variable (response) 'leaf_biomass' replaced by leaf_biomass_leaf, leaf_biomass_plant, leaf_biomass_eco