Stan Gregory, Oregon State University 20000928 v. 3 raster digital data Corvallis, OR Pacific Northwest Ecosystem Research Version 3 replaces Version 2 which \\ANGELINE\C$\temp\river\pesveg_v3\pesveg_v3 Pacific Northwest Ecosystem Research 20000928 This coverage was created as part of the research undertaken by the Pacific Northwest Ecosystem Research Consortium (<http://www.orst.edu/dept/pnw-erc/>) funded by the U.S. Environmental Protection Agency under cooperative agreement with Oregon State University #CR824682. <http://www.orst.edu/dept/pnw-erc/> This grid map was created to provide an approximate representation of typical vegetation cover types before European settlement of the Willamette Basin, Oregon. The data come primarily from three sources: The Nature Conservancy's 2000 General Land Office vegetation coverage (VEG1851_V5), the Oregon Natural Heritage Program's 1993 Oregon Actual Vegetation (ORVEG1850), and the digital versions of H. J. Andrew's 1936 Oregon Forest Type map. While most of the map detail came from VEG1851_V5, the upland forest was left unmapped in that coverage and came from a combination of the other two coverages. This raster file will be used by land managers and government entities within the Willamette Basin to assess past land cover conditions. It will also be used as part of a research project designed to formulate future scenarios for growth in the Willamette basin (Pacific Northwest Ecosystem Research Consortium, OSU, UO, EPA). See Entity & Attribute Overview below. Because the GLO data (VEG1851_V5) covered only the Willamette Valley and selected parts of the forested upland, the creation of PESVEG required using two other coverages (ORVEG1850 and ORVEG1936) to fill in the remaining basin area. This work was done by Doug Oetter and Linda Ashkenas at Oregon State University from May through September 2000. Initially, ORVEG1850 was used to complete the basin-wide coverage. The match lines were edited to smooth the boundary, using a Digital Elevation Model as a guide. After a comment period, the Andrews coverage (ORVEG1936) was used to add more burns and early successional stands into the grid. Additional editing was done to engrave the Willamtte River channels and snow. Following this, Patti Haggerty (Corvallis EPA Lab) developed an overlay which added open water areas and recoded the Willamette River and other mainstream rivers. This is Version 3, the first public release of this grid. It incorporates the Nature Conservancy Version 5 of VEG1851. The first version (1) of PESVEG was released in June 2000 for internal review, and version 2 followed in early July 2000 after making corrections to several attributes. No further versions are planned at this time. REQUIRED: The year (and optionally month, or month and day) for which the data set corresponds to the ground. 18500000 19360000 publication date Complete As needed -123.768255 -121.630228 45.941455 43.350665 None Historical vegetation Pre-European settlement vegetation PNW Ecosystem Research Consortium None Willamette River Basin Oregon none none Doug Oetter Oregon State University Faculty Research Assistant mailing and physical address

Dept. of Forest Science Oregon State University

Corvallis OR 97331 USA 541-737-8417 541-758-7760 oetter@fsl.orst.edu The Nature Conservancy of Oregon, Oregon Natural Heritage Program, provided much of the the historic vegetation and river channel information used to construct this data layer. Other data came from the HJ Andrews 1936 Oregon Forest Type map, digitized by the Interior Columbia Basin Ecosystem Management Project, and internal data from the Laboratory for Application of Ecology in Remote Sensing at the USFS Pacific Northwest Research Station. None Unclassified None Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 2; ESRI ArcCatalog 8.1.0.642 Attributes are user-defined and The raster Grid is complete. Data set is complete. Unknown. Unknown. The Nature Conservancy of Oregon Oregon Natural Heritage Program 20000919 v.5 map Portland, OR The Nature Conservancy of Oregon unknown online 18510000 19090000 publication date VEG1851_V5 The Nature Conservancy of Oregon constructed a pre-settlement land cover map for the Willamette Valley by interpretting the survey notes of the General Land Office taken over a period from 1851-1909. This coverage, referred to as VEG1851_V5 in the process step below, forms the basis for the valley portion of PESVEG. For more information, see: <http://www.fsl.orst.edu/pnwerc/river/metadata/veg1851_v5.html> The Nature Conservancy of Oregon; Oregon Natural Heritage Program 19990831 map Portland, OR Oregon Natural Heritage Program unknown online 18500000 19360000 ORVEG1850 The Nature Conservancy of Oregon created this coverage, referred to as ORVEG1850 in the process step below, as part of the Oregon Biodiversity Project. For more information, see: <ftp://ftp.fsl.orst.edu/pub/pnwerc/river/onhp1850.pdf> Interior Columbia Basin Ecosystem 19950114 map Portland, Oregon ICBEMP Spatial Analysis Team 500000 online 1936 1936 ORVEG1936 This polygon coverage is based on the 1936 Oregon Forest Types map created by H. J. Andrews for the PNW Research Station of the USFS. It is referred to as ORVEG1936 in the process step below. For more information, see: <http://www.icbemp.gov/spatial/metadata/veg/425.txt> University of Oregon Institute for a Sustainable Environment 19990300 map Eugene, Oregon Institute for a Sustainable 100000 online 1990 1997 LAKES3 This polygon coverage was used to augment the hydrological information contained in PESVEG_V3. It is referred to as LAKES3 in the process narrative below. For more information, see: <http://www.fsl.orst.edu/pnwerc/wrb/metadata/lakes3.html> The VEG1851_V4 coverage was converted to a shapefile with a 1 meter fuzzy tolerance, which created over 15,000 polygons. Those under 900 m2 in area were eliminated. The VEG1851_V4 coverage was used to 'update' the ORVEG1850 coverage, and clipped to the basin boundary with PNW-ERC's CLIP. Six of the ORVEG1850 veg codes did not have obvious crosswalks in VEG1851_V4, and so new classes were created for FD, FFSA, FFSH, FFSRW, FP, and P. The crosswalk details can be found in pesveg.xls. Following this, a variety of hand edits were performed to smooth the boundary between the two coverages. Individual polygons were relabled for consistency, using the original Andrews data (ORVEG1936) as a guide. There were three main areas of incongruence: Coast Range, Sauvie Island, and Cascades. Most of the changes involved moving the VEG1851_V3 border out into the ORVEG1850 area, to smooth the outer edge of Christy's data, making up for the coarser resolution of the GAP data, and taking into account the different sample times- c.1851-1895 for Christy versus 1926-36 for GAP (coming from the Andrews map). There were some places we changed the ORVEG1850 label, based on the Andrews original call. ONHP labeled Andrew's 21 (Hardwoods- Alder, Ash, Maple) as 'Riparian' which we changed to FFCL or FFA. Andrew's 1 (Non-forest land) was labeled 'Oregon White Oak Savanna' which we changed to OFOZ usually, but HU on top of Mary's Peak. Some of the 'Douglas-fir' polys were changed from FF to FFHC, just to keep with the adjacent VEG1851_V3 polys. After these edits, the coverage was cleaned with a 5 meter fuzzy tolerance, and splinter polygons were eliminated. At this point the vector coverage was rasterized as an Imagine 8.4 file with 30 meter pixels. Subsequent editing began with polygons that Andrews had mapped 1 (Non-Forest land) up in the Cascades, which GAP called 'Alpine'. These were examined and most were recoded as OFZ (Woodland), and the mountain tops as UR (Barren). The active and secondary channels from AC1850P were recoded from Water (or other) to a new code WWR (Water Willamette River). The Woodland above 315m elevation (outside of the valley used to define the Natural Shrub/ Forest Open break in EC90) was recoded to Forest Semi-Closed or Forest Open (if burned woodland). After an initial review, several scientists recommended including or creating more disturbed areas in the forests, since the Andrews map had been collapsed into closed forest classes to form ORVEG1850. To establish early and mid-successional forest cover types in PESVEG, four of Andrews original polygon types from 1936 were selected to represent a 'typical' amount of disturbed area in PESVEG: 9 (Douglas Fir, Seedling-Sapling-Pole); 11 (Spruce-Hemlock-Cedar, Small); 20 (Balsam Fir-Mtn Hem-Upper Slope Types, Small); 25 (Deforested Burns). These polygons were used to recode the PESVEG pixels into disturbed (burned) and early successional classes (FFY, FSCC) based on the Andrews map as well as the existing PESVEG class (which came from ORVEG1850), according to a rule structure. Two new classes were created in this process: FFM (Closed forest; Upland; Mixed conifer mature age), and FFSHBu (Closed forest; Pacific silver fir-mountain hemlock burned). Finally, a snow class was added to represent the permanent snow fields around Mt. Jefferson and the Sisters. An area was digitized from the 1988 Western Oregon Vegetation Mapping Project data (LARSE; USFS PNW Research Station; Corvallis, OR), and the underlying pixels were recoded to UF- Unvegetated snow and ice. Version 2 was released following some hand-editing to correct coding errors in Version 1. Version 3 updated an area around Sauvie Island after the additions to VEG1851_V5 were completed in September 2000. The existing PESVEG_V2 was updated with the new coverage and join lines were smoothed. At the same time, additions and changes to the hydrological layer were made by Patti Haggerty at the Corvallis EPA Lab. Her procedures follow: 1. A new grid was generated by selecting water classes from the dataset assembled by Doug Oetter and Denis White. Problems with this data are that the large tributaries of the Willamette are coded as permanent water, not as large streams. Also there are very few lakes and other permanent water bodies such as high elevation lakes. Also the tributary rivers do not extend as far as do the rivers in the EC90 and subsequent layers. 2. In order to reclass the main tributaries of the Willamette to large streams, the water classes of the PES vegetation layer were converted to polygons. The tributary polygons were coded to large streams. In addition, stream vectors from the River Reach 2 dataset that were coded as strahler 5 through 7 were selected at the point where they joined the rivers from the PES dataset and converted to a grid via the linegrid command. 3. To add high elevation lakes, polygons from the PNW-ERC LAKES3 coverage that fell within the High Cascades ecoregion were converted to a grid via the polygrid command. 4. Low elevation water bodies were selectively added by selecting water bodies from the LAKES3 coverage that fell within the valley and foothill ecoregions and that were not next to dams (Lake polygons within 100m of a dam were deleted). Dams were identified from the Oregon Water Resources dam coverage. This coverage displays dams that are equal or greater than 10 feet in height and store 9.2 acre foot or more of water. The selected water bodies were translated into grids via the polygrid command. 5. A final composite of the water classes was made by merging grids of the low and high elevation selected lakes, strahler 5-7 arcs, reclassified large tributaries, and original data in such as way as to generate a final grid that could be merged into the existing PES dataset. The updated water information was overlaid on PESVEG_V3 and the class list was updated to reflect those changes in September 2000 by Doug Oetter. 20000928 Doug Oetter Oregon State University Faculty Research Assistant mailing and physical address

Dept. of Forest Science Oregon State University

Corvallis OR 97331 USA 541-737-8417 541-758-7760 Raster Grid Cell 9565 5525 1 Universal Transverse Mercator 10 0.999600 -123.000000 0.000000 500000.000000 0.000000 row and column 30.000000 30.000000 meters North American Datum of 1927 Clarke 1866 6378206.400000 294.978698 pesveg_v3 Value Attribute Table None ObjectID Class identification number User Defined 0 96 Value Land cover vegetation code; based User Defined See Veg_text; for full descriptions, see source information listed above Count Land cover vegetation description User Defined For full Link Color mapping symbol; based on PNW-ERC User Defined 1 Upland hardwood 2 Upland mixed 3 Upland conifer 4 Upland conifer 5 Riparian 6 Riparian mixed 7 Semi-closed 8 Semi-closed 9 Semi-closed 10 Young conifer 11 Open forest 21 Shrubland 22 Wet shrubland 23 Upland 31 Hardwood 32 Mixed woodland 33 Conifer 34 Open woodland 41 Prairie 42 Wet prairie 51 Hardwood 52 Mixed savanna 53 Conifer savanna 61 Unvegetated 62 Unvegetated 63 Unvegetated 71 Open water 72 Water mainstem 73 Wetlands Veg_code Veg_text Symbol Codes have been assigned to designate each unique type of vegetation community, as delineated primarily by the VEGABB attribute in VEG1851_V5.pat. The attribute Veg_code uses VEGABB (aka Christy codes) wherever possible, however some of the codes were adapted from ORVEG1850 or created to represent special situations (e.g. UF and WMS). The associated information in VEG_TEXT should be sufficient for most vegetation classes. A complete listing and description of each VEGABB code is included in the related document veg1851_v5.doc. The 96 unique VEG_CODE designations each have a numberic equivalent in LINK, and have been collapsed into 29 SYMBOL codes which can be used for mapping purposes with the associated ARC/INFO color file pesveg_v3.clr. Users should pay special attention to page 16 of the related document to discover changes in code designations. Some codes in the spatial data were changed before the final code description document was released; page 16 details the conversion to new codes. This table in DBF format, provides translations among the VEGABB codes, their numeric equivalents in the LINK field, and the corresponding values used in the PNW Ecosystem Research Consortium project. Oregon State University Doug Oetter Faculty Research Assistant mailing and physical address

Dept. of Forest Science Oregon State University

Corvallis OR 97331 USA 541-737-8417 541-758-7760 oetter@fsl.orst.edu PESVEG_V3 While strong efforts are made to ensure data set accuracy, complete accuracy of every data set cannot be guaranteed. Compressed archived ARC/Info workspace gzip or WinZip 3.010 anonymous ftp none 20020730 Doug Oetter Oregon State University REQUIRED: The organization responsible for the metadata information. REQUIRED: The person responsible for the metadata information. Faculty Research Assistant mailing and physical address

Dept. of Forest Science Oregon State University

Corvallis OR 97331 USA 541-737-8417 541-758-7760 oetter@fsl.orst.edu FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile