Fig. 11: Quantitative box plot of erosion extraction pattern characteristics indicator.

a erosion height, Erosion Height / m. Sample of a typical section. b erosion depth, Erosion depth / m. Sample of a typical section. c erosion-eliminated area, Erosion-eliminated area / m2. Sample of a typical section. d morphological erosion. Morphological erosion rate / %. Sample of a typical section.