Fig. 6From: Correction to: The Tree Drought Emission MONitor (Tree DEMON), an innovative system for assessing biogenic volatile organic compounds emission from plantsOverview on gas exchange and soil water content during the drought experiment. Gas exchange of sweet chestnut trees (#1 to #4) and soil water content during the drought stress experiment. a Mean total emission rate EM standardized to 30 °C and 1000 µmol m−2 s−1, b mean volumetric soil water content SWC. The horizontal black line marks the SWC value where plant gas exchange starts to show a response to drought. c Mean transpiration rate E; d mean net photosynthesis rate A. Error bars represent the standard error of the daytime mean (N = 4). Horizontal gray bars indicate the day after watering was stopped for plants in the drought stress variantBack to article page