what characterizes a hydric soil
Due to the ionic reducing conditions caused by long periods of inundation, most hydric soils have some very distinguishing characteristics. The following is a list of some common characteristics of hydric soils: 1  excessive moisture. 2  a rotten egg odor of hydrogen sulfide present within 12 inches of the surface.3  a predominance of decomposed plant material (peats or mucks). 4  reddish or dark-colored mottles or streaks. 5  stratified layers in the top 6 inches.ue to the ionic reducing conditions caused by long periods of inundation, most hydric soils have some very distinguishing characteristics. The following is a list of some common characteristics of hydric soils: 1  excessive moisture. 2  a rotten egg odor of hydrogen sulfide present within 12 inches of the surface.