Comprehensive Multi-Scale Database of Soil Stratum
Properties
for Regional Environmental Quality Modeling
The USDA-NRCS STATSGO regional soil database can
provide generalized soil information for regional-scale
modeling, planning and management of soil and water
conservation, and assessment of environmental quality.
However, the data available in STATSGO can not be
readily extracted nor parameterized to support regional
environmental quality modeling. Therefore, each user
must individually and repeatedly process existing data
in STATSGO to obtain the necessary soil properties. In
order to develop a comprehensive database for use in
modeling and assessing regional soil and water
resources and environmental quality across the eight
western United States (WA, OR, CA, ID, NV, UT, MT, WY),
we aggregated existing soil properties in STATSGO from
19,681 soil polygons/map units of the eight states as
well as estimated soil properties based upon
quantitative relationships among existing soil
properties. The soil database comprises 3910 map units,
with each map unit defined by 10 soil layers and each
layer characterized by 31 soil physical, chemical and
hydraulic properties. Additional parameters which are
not included in the database can be readily derived
based upon the properties provided by our database. In
addition, our database was gridded to 1-km and 12-km
resolution cells for application to grid-based
environmental models such as WEPS and AIRPACT-3, which
respectively simulate wind erosion and transport of
atmospheric pollutants.
Soils Database Files:
-
EXCEL FILE: Soil Properties associated with each map unit (two worksheets)
+ West8States_soil_Database.ZIP (6.2 MB) -
EXCEL FILE: Relationship between map unit and 12-km grid cell ID (GRID CODE)
+ SpatialLinkofMapunit_12kmGridcellID.ZIP (434 KB) -
DBF FILE: Relationship between map unit, 1-km grid cell ID (Grid_code), and the area of soil polygons in a cell (Fid_new1km)
+ RelationshipsOfGridcode_Mapunit_Area (7.6 MB) -
GIS Shapefile: Files (.dbf, .muid.atx, .prj, .sbn, .sbx, .shp, .shx) of map units associated with soil polygons that can be used to display spatial location of each map unit or soil polygon
+ West8States_SoilMapUnit_Polygon.ZIP (81 MB)
For more information, contact:
|
Guanglong Feng |
|
Brenton Sharratt |