Soil Property Estimates by Disaggregation of Legacy

Soil Polygon Mapsusing fuzzy landform class

likelihood values

Glenn LelykAgriculture and Agri-Food Canada

R. A. MacMillanLandMapper Environmental Solutions Inc.

Polygon Disaggregation Based on Fuzzy Likelihood Values• New Output

Option– Writes out all

fuzzy likelihood values• For every grid cell• For all defined

classes– Classes can vary

by cell• Every cell can

have different numbers and types of fuzzy classes

• Controlled by a Map Zone identifier

• Rules by Map_Zone

Computes Soil Property Values by Weighted Average Method of Zhu (1996)

pH

Percent Sand

Percent Silt

Percent Clay

Percent Gravel

Organic Carbon

Thank You