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This data set depicts soil characteristics in western North America. The data set was created from NRCS STATSGO soil data. Calculations were made to reduce one to many relationships to one to one relationships in order to summarize average water capacity, depth to rock, salinity, and pH for each map unit (MUID). ArcMap 8.3 was used to import .dbf files and merge newly created attribute fields to the GIS soil coverage.
Tags: Arizona,
California,
Colorado,
Idaho,
Montana, All tags...
Nevada,
New Mexico,
North Dakota,
Oregon,
South Dakota,
Utah,
Washington,
Western United States,
Wyoming,
average water capacity,
earth material properties,
geology,
geoscientificInformation,
ph,
rock depth,
salinity,
soil chemistry,
soil moisture,
soil sciences, Fewer tags
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Ecoregions are based on perceived patterns of a combination of causal and integrative factors including land use, land surface form, potential natural vegetation, and soils (Omernik, 1987).
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Aquatic,
Conterminous,
Ecoregion,
Ecoregions,
Omernik, All tags...
Omernik's,
US,
USA,
United States, Fewer tags
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Depicts a risk model of invasion of native shrublands (primarily sagebrush ecosystems) by Juniper and Pinyon Pine.
Tags: Biology and Ecology,
Ecosystem,
Ecosystems,
Environment and Conservation,
Environmental Risk, All tags...
Great Basin,
Habitat,
Invasion,
Juniper,
Land Cover,
Landscape,
Nevada,
Pinyon Pine,
Risk,
Sagebrush,
Shrubland,
United States,
Utah,
Vegetation,
Western U.S., Fewer tags
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This map depicts the distribution of sagebrush and associated shrub-steppe habitat types using readily available data from a variety of source maps from WA, OR, CA, UT, NV, CO, WY, MT, ND, SD, AZ, NM, AB, and BC. Habitat was grouped from map sources that were classified with detailed information on specific sagebrush types, as well as coarse-scale maps that classified vegetation as only "shrub" in the case of ND and the Canadian provinces. This map is a 90-meter grid, but source material included 30 to 90-meter grids, and 1:24,000 and 1:100,000 polygon coverages.
Tags: Alberta,
Arizona,
Artemisia spp.,
British Columbia,
California, All tags...
Canada,
Centrocercus spp.,
Colorado,
Idaho,
Montana,
Nevada,
New Mexico,
North American,
North Dakota,
Oregon,
Sage-grouse,
Saskatchewan,
South Dakota,
USGS-EMA-LOW-PL Sagebrush Steppe,
United States,
Utah,
Washington,
Western North America,
Wyoming,
biota,
birds,
distribution,
ecology,
ecosystems,
environment,
habitats,
land use and land cover,
life sciences,
sage,
sagebrush,
shrub-steppe,
shrubland ecosystems,
vegetation, Fewer tags
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This map was developed to map the probablity of cheatgrass in order to examine the overlap of cheatgrass with high priority sagebrush restoration areas. Logistic regression was used to create linear models that were than spatially applied to the landscape. Inputs for regression analysis included elevation, precipitation, soil pH, soil depth, soil salinity, and available water capacity extracted at 6,736 field sampling locations where cheatgrass occurrence was determined.
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