Willamette National Forest soil resource inventory (SRI 1992) clipped to the Andrews Experimental Forest

  • Creator(s): Rosana A. Costello, Theresa J. Valentine
  • PI(s): Theresa J. Valentine
  • Originator(s): Rosana A. Costello
  • Other researcher(s):
  • Dates of data preparation: Jun 1 1992 - Jun 1 1992
  • Data collection status: Study collection is completed and no new collection is planned
  • Data access: Online
  • DOI:
  • Last update: Jun 17 2005 (Version 3)
<Citation>     <Acknowledgement>     <Disclaimer>    
Costello, R.; Valentine, T. 2005. Willamette National Forest soil resource inventory (SRI 1992) clipped to the Andrews Experimental Forest. Long-Term Ecological Research. Forest Science Data Bank, Corvallis, OR. [Database]. Available: Accessed 2023-12-11.
Data were provided by the HJ Andrews Experimental Forest research program, funded by the National Science Foundation's Long-Term Ecological Research Program (DEB 2025755), US Forest Service Pacific Northwest Research Station, and Oregon State University.
While substantial efforts are made to ensure the accuracy of data and documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is". The Andrews LTER shall not be liable for damages resulting from any use or misinterpretation of data sets.

This layer contains the delineations of the soil landtype mapping units defined in the 1992 update to the SRI (Soil Resource Inventory)

The mapping units are derived and defined on the basis of soil, landform, geology and vegetation characteristics. The average delineation size for each mapping unit is 50 to 600 acres. This data was originally mapped at the 1:24000 scale. Due to the reconnaissance nature of this survey, it lacks detail for use in high-intensity, small-area projects. These projects require additional on-site study by various technical specialists, including soil scientists.

The dominant landtype of the mapping unit is described in the mapping unit description and identified by the same number as used for the mapping unit. Within the mapping unit, other landtypes occur. Those most commonly associated with the dominant landtype of the mapping unit are included in the descriptions as inclusions. These inclusions of other landtypes account for no more than 30 percent of the mapping unit. (for further descriptions of mapping unit symbology see SOIL RESOURCE INVENTORY" Willamette National Forest, Basic Soil Information and Interpretive Tables

Study Description Download Study Location Information: (CSV)
Ecological Metadata Language: (EML)
1Willamette National Forest 1992 soil resource inventory (SRI) clipped to the Andrews Experimental Forest MAP / METADATADATA