@conference {51279,
	title = {Coupling use-dependent and use-invariant data for simplified soil quality evaluation},
	booktitle = {Annual Meeting, American Society of Agronomy},
	year = {1997},
	month = {October 26-31, 1},
	pages = {Abstract 252},
	address = {Anaheim, CA},
	abstract = {The interpretive data base of the National Cooperative Soil Survey is largely use-invariant.  The same data record applies irrespective of the present soil use.  Soil quality requires a use-dependent data base and, commonly, point observations within components of map units.  We present examples of point observations for the near surface combined with the use-invariant interpretive data base.  The latter is applied below the depth of physical change caused by human activities or to properties at a shallower depth that are not affected by use.  Both the use-dependent and the use-invariant properties are placed in quality classes.  The class placements are integrated to form an overall quality assessment.},
	author = {R. Grossman and D. E. Harms and Seybold, R.A. and Pytlik, L.A. and Jeffrey E. Herrick}
}
