Spatial difference of soil quality parameters after submergence: (A) hit histogram (i.e., data density indicated by the circle size) in a U-matrix for presenting differences among sampling sites including upper (red circles), middle (yellow circles) and lower (green circles), (B) hit histogram for indicating variations among three elevation intervals, i.e., 145–155 m (red circles), 155–165 m (yellow circles) and 165–175 m (green circles), and (C) rank of significant parameters from the highest rank in the top to the lowest in the bottom.

<p>Symbols are similar to <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0121210#pone.0121210.g006" target="_blank">Fig. 6</a>.