Plant_responses

Canopy greenness, frost damage, shoot biomass and shoot length growth (cumulative an interpolated). Canopy greenness was measured on 8 occassions during the spring of 2014. Greenness is expressed per % of maximum greenness. Frost damage measured at two dates in late spring as relative electrolyte leakage (%). Shoot biomass (mg) at the peak of the growing season (mid-July 2014). Shoot length growth (cm) measured at 8 consecutive dates in the summer of 2014, and cumulative length growth at the peak of the growing season (mid-July 2014). Measurements are for shrub species: 'Betula' (nana), 'Vaccinium' (vitis-idaea) and 'Empetrum' (nigrum). In all files 'Inner' and 'Outer' relate to non-sorted-circle inner and outer domains. 'Control' or 'ctrl' represents unmanipulated plots, 'fleece' plots covered with gardening fleeces from autumn to late spring, and 'snow' for plots where snow was added by using a stone wall.