Bulk density

[ktoddbrown]

Bulk density is a mass per volume ratio for some aspect of the soil.

Example form ISCN3. Bulk density only appears in the layer table:

column_name	description	unit
bd_samp	Bulk Density, Coarse Fragments Removed	g cm-3
bd_tot	Bulk Density With Coarse Fragments	g cm-3
bd_whole	Bulk Density Minus Estimated Coarse Fragments	g cm-3
bd_other	Bulk Density Other	g cm-3
bd_method	Bulk Density Method
bdNRCS_prep_code	Bulk density prep code form the NRCS soil lab manual

Example

bd_method	bd_samp (g cm-3)	bd_tot (g cm-3)	bd_whole (g cm-3)	bd_other (g cm-3)	bdNRCS_prep_code
bd_samp values are means of multiple observations	0.65	NA	NA	NA	NA
G	NA	1.52	NA	NA	NA
NA	1.59	NA	1.33	1.33	S

[srearl]

Bulk density is another area where SoDaH matches quite closely to the approach of ISCN3.

unit_levels	Var_long	var	Level	Notes	givenUnit	class	type	hardUnit
g cm^-3	Bulk Density, Coarse Fragments Removed	bd_samp	layer		g cm-3	numeric	value	g cm-3
	Bulk Density With Coarse Fragments	bd_tot	layer		g cm-3	numeric	value	g cm-3
	Bulk Density Method or Other Notes	^bd_	layer			character	method