Fig. 2From: Assessing the influence of harvesting intensities on structural diversity of forests in south-west GermanyBoxplots for changes in the Forest Structure Index in relation to harvesting intensity (in % of standing timber volume per ha of NFI2002, depicted in 10%-intervals). The grey square on the x-axis indicates average harvesting intensity for the entire forest area of Baden-Württemberg for the 10-year period between NFI2002 and NFI2012 (30.8%); black horizontal line indicates no change in the FSIBack to article page