Fig. 3. Boxplots of macroporosity values for the conventional and conservation tillage plots of the Adenstedt and Lietzen site, determined with the hood infiltrometer (HIF). The numbers of measurements are given in Table 4. For each study plot, the left side box plot denotes macroporosity values calculated with the approach of Watson and Luxmoore (1986), and the right side box plot denotes the values calculated with the method of Bodhinayake et al. (2004).