Salinity Influenced Soils Map and Data for Non-Federal Land

1992 data maps soils where maximum salinity exceeds 4 millimhos/cm in the upper 40 inches, a level adverse to most plants. The map uses blue and green dots, each representing 10,000 acres of different non-Federal land categories. It was produced by SCIOPS and last updated in October 1998.

Use Cases

• Identify cropland and potential cropland areas affected by salinity using the 'Salinity Influenced' soil classification.
• Analyze the spatial distribution of saline soils on non-Federal land categories represented by blue and green dot symbols.
• Assess land conversion potential by correlating soil salinity data with 'Medium-likely' or 'High-very likely' potential cropland labels.
• Model agricultural risk by using the 4 millimhos/cm salinity threshold as a feature for crop suitability analysis.

Strengths

• Data is defined by a specific salinity threshold (greater than 4 millimhos/cm) measured in the upper 40 inches of soil.
• Land area is quantified using a consistent scale where one map dot equals 10,000 acres.

Limitations

• Data is temporally stale, representing a single snapshot from 1992.
• Geographic coverage is incomplete as NRI data are not available for Alaska.
• Sample data and column definitions are unavailable for review.

Provenance

Source

SCIOPS via NASA EarthData.

Collection Method

Analysis product derived from map data; original data files are pipe-delimited ASCII text format.

Time Range

1992

Freshness

1998-10-31

Geography

Non-Federal land in the United States, excluding Alaska.