In this module

Assessing the physical characteristics of soil

Structural unit	Type	Occurrence
	Single grain	sandy or loamy soil
	Granular	in dark surface soil
	Platy	in pale subsurface soil
	Blocky	in clay-enriched subsoil, especially in forested areas
	Prismatic	in subsoil, particularly in grassland
	Columnar	in sodium-affected subsoil in grassland
	Massive	compacted material or lightly decomposed parent material