As described on the hydric soils web page, we created a complete soils coverage for the study area by merging GIS Soil Survey coverages obtained from the NRCS and OSU Soil Science Department websites. We then joined the hydric components tables (from downloaded Map Unit Interpretations Record Tables) for all relevant survey areas with the merged soils layer, and queried the joined tables for hydric mapping units, creating a new field ("all_hydcode"), with value "hyd" for hydric, and "non" for non-hydric. The individual report section maps show the soil survey map units which were classified as hydric.

Total area of hydric soils in study area: 10,414 ha.

Sixth field name	Major Basin	Sixth field ID code	Total area of hydric soils (ha)	Proportion of area in hydric soils
BOONE SLOUGH	Yaquina	40315	442	0.13
SF_SILETZ L.	Siletz	40410	432	0.09
BEAVER	Ocean Tribs	50501	280	0.06
SALMON RIVER	Salmon	40911	265	0.14
L.SILETZ RIVER	Siletz	40812	227	0.19

The definition of hydric soils is established by the National Technical Committee on Hydric Soils.

Spreadsheet Data: soils_sum_lb20may.xls

Shapefile: soils_mc6.zip (12 MB)

Metadata: MD_soils_mc6.doc

Please address questions or comments to:

Dr. Ralph Garono
Principal Investigator
Earth Design Consultants, Inc.
rgarono@earthdesign.com

Laura Brophy
Principal Investigator
Green Point Consulting
brophyl@peak.org | homepage