Modeling Regions
Modeling Region
223 : Oregon Coast Range
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OverviewMoist, productive forests in the Oregon Coast Range province are dominated by Douglas-fir, western hemlock, and western redcedar. The Forest Service and Bureau of Land Management together manage about one-quarter of the land in the province. Older forests are highly fragmented, largely as a result of infrequent but very large wildfires in the 1800s and 1900s, and heavy cutting, as well as checkerboard ownership patterns.
This modeling region also encompasses the western portion of the Oregon Willamette Valley province. Most of the Willamette Valley is in private ownership, and includes extensive urban and agricultural areas. Lowland coniferous forest, deciduous forest, and native prairie were the natural dominant vegetation types.
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Map Products
| GNN species-size map and accuracy assessment report | FINAL | 2006 | 03/03/2010 |  (62.4 MB) |
Plot Database
LEMMA offers a number of data tables associated with
this region. Many of the tables can be downloaded by clicking
on the plot database link below, but the larger tables are
only available upon request. The database contains plot data
for all modeling regions within a project. Documentation for these
tables is embedded in the Data Dictionary section below.
| Plot database (MS Access format) and associated documentation | FINAL | N/A | 05/05/2010 | (25.7 MB) |
Data Dictionary
| dbo | TREE_BA_CROSSTAB | Plot by tree species basal area cross-tabulation table | Included in plot database download |
| dbo | TREE_COV_CROSSTAB | Plot by tree species percent cover cross-tabulation table | Included in plot database download |
| dist | SPPSZ_ATTR_NWFP | Plot information and stand level summary variables attached to GNN grids by default for the NWFP project | Included in plot database download |
| dist | SPPSZ_ATTR_ALL | Plot information and all stand level summary variables (for attaching to GNN grids) | Included in plot database download |
| dbo | TREE_LIVE | Live tree piece-level data | Contact us |
| dbo | TREE_SNAG | Standing dead (snag) piece-level data | Contact us |
| dbo | TREE_CWD | Coarse woody debris piece-level data | Contact us |
| dbo | UNDERSTORY | Understory (non-tree) tally data (cover by species on plots) | Contact us |
| dbo | SPECIES_CLASS | Species classification (family, genus, species, etc.) | Included in plot database download |
Associated Projects
This table lists projects whose study areas partially overlap the region
of interest. Click on the link to be taken to the associated project
pages.
