Fig. 2From: Diatoms as an indicator for tile drainage flow in a German lowland catchmentBox plots of main environmental conditions including water temperature (a), discharge (b), O2 (c), NH4-N (d), PO4-P (e), and TP (f) at different sampling sites. Boxes show interquartile ranges (25th and 75th%), middle lines are medians, whiskers are non-outlier ranges beyond the boxes, and dots are outliersBack to article page