Forest Operations Inventory Vegetation Data Standard Version 4.0
Bureau of Land Management
1220 S.W. 3rd Ave.
Portland, OR 97204
United States
1283/1610/5000/9167(OR955/930) P
Mission
This information bulletin announces the availability of and describes the recent updates to the Forest Operations Inventory Vegetation Data Standard version 4.0.
The Forest Operations Inventory Vegetation (FOIVEG) data is a forest-centric classification of vegetation with polygons (POLY) that cover one hundred percent of land in western Oregon managed by the Bureau of Land Management (BLM) and some BLM managed land in the rest of the United States. It describes forested lands in detail and non-forest lands with broad and general classifications. Polygons are delineated primarily based on differences in vegetative cover, size, and age. The FOIVEG_POLY attributes describe both the overall forest stand as well as the layers within that stand. Cover type and ten-year age class are part of the description of the overall forest stand. The stand description, which includes species, size class, and birth year, describes the stand and, also, the layers of forest canopies within each stand.
The following is a list of the changes for this version of the data standard:
- Major redesign of the dataset to consolidate related table data into the FOIVEG_POLY feature class. The purpose of the consolidation is to make the data easier to edit and maintain.
- Removed the historic data from the dataset. Stand history can be accessed (as needed) from the annual archives.
- Dropped Snag Decay and Down Log Decay data tables and added summary fields to replace the detailed data.
- Adjusted relationship classes to related Layers Species and Stand Species Tables so that related records are copied when FOI polygons are split, and orphaned records are deleted when polygons are merged.
- Consolidated source and source date fields into a single set up source fields.
Any questions about this data standard can be directed to Sean Jeronimo, State Data Steward for FOIVEG at 503-315-5927; Dana Baker-Allum, FOIVEG Technical Lead and Geospatial Data Designer at 503-313-6287; or Eric Hiebenthal, State Data Administrator at 503-808-6565.