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Tutorials
Using Soils Data
Using Soils Data > Data Tables & Structure
What does each polygon represent?
Each polygon
represents a soil map unit. When working with SSURGO soils data (what
is SSURGO data?), each map unit represents an area dominated by one to
three kinds of soil. The map unit is named for the dominant soil or soils.
The boundaries of soil map units do not necessarily represent an abrupt change of soil type. Usually, the transition occurs over many feet. Map units also do not represent homogenous soil bodies. Every soil body contains inclusions (small bodies of other soils). It is impossible to represent the entire variety of the Earth's soils so soils maps smooth over many of the variations.
The Penn State Cooperative Extension, Geospatial Technology Program (GTP) Land Analysis Lab is a research,
cooperative extension, and teaching program in the Department of Crop and Soil Sciences at The Pennsylvania State University.
We specialize in the use of GIS and related advanced information system technologies for environmental assessment, agriculture,
and land management and planning.
Problems with the website? Contact the webmaster Last Modified: 30-Nov-2007 15:39