Oregon Historic Vegetation

Metadata also available as

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Claudine Tobalske (OR Natural heritage Program)
Publication_Date: June 2002
Title: Oregon Historic Vegetation
Geospatial_Data_Presentation_Form: vector digital data
Online_Linkage:
<http://navigator.state.or.us/sdl/data/shapefile/k100/historic_vegetation.zip>
Description:
Abstract:
This is a map of historical ("presettlement") vegetation for the state of Oregon, created with Arcview 3.2 by merging digital data from different sources: H. J. Andrews, General Land Office (GLO), Soil Survey Geographic (SSURGO), BLM, Oregon Gap analysis. The H. J. Andrews map forms the background into which more detailed coverages were incorporated. The data consist of an ArcView shapefile. Scale varies throughout the coverage, depending on the source of the data; the overall scale is 1:100,000.
Purpose:
This map was created to allow the comparison between the distribution of historical and current vegetation/land cover types in oregon.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: Pre-1938
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Irregular
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -124.804894
East_Bounding_Coordinate: -116.419839
North_Bounding_Coordinate: 46.275371
South_Bounding_Coordinate: 41.920840
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Historic (presettlement) vegetation
Place:
Place_Keyword: Oregon
Temporal:
Temporal_Keyword: 1938
Access_Constraints: None.
Use_Constraints: None.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Claudine Tobalske
Contact_Organization: Oregon Natural Heritage Program
Contact_Position: Ecologist/GIS analyst
Contact_Address:
Address_Type: mailing and physical address
Address: 1322 SE Morrison Street
City: Portland
State_or_Province: OR
Postal_Code: 97214
Country: USA
Contact_Voice_Telephone: 503-731-3070 ext. 117
Contact_Facsimile_Telephone: 503-731-3070
Contact_Electronic_Mail_Address: claudine.tobalske@orst.edu
Hours_of_Service: 9am-5pm PT
Browse_Graphic:
Browse_Graphic_File_Name:
<http://navigator.state.or.us/sdl/data/image/k100/historic_vegetation.html>
Browse_Graphic_File_Description: Oregon Historic Vegetation
Browse_Graphic_File_Type: JPEG
Security_Information:
Security_Classification: Unclassified
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 3; ESRI ArcCatalog 8.1.2.671

Data_Quality_Information:
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S.F.S.-ICBEMP
Publication_Date: 01-14-1995
Title: H.J. Andrews land cover map of Oregon and Washington
Source_Scale_Denominator: 500000
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 01-14-1995
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Historical vegetation of Oregon and Washington
Source_Contribution: Base cover
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S.D.A.-NRCS Soil Survey Division
Title: Soil Survey Geographic (SSURGO) data
Other_Citation_Details:
General description available at <http://www.ftw.nrcs.usda.gov/ssurgo.html>
Online_Linkage: <http://www.nrcs.usda.gov>
Source_Scale_Denominator: 24000
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1996
Ending_Date: 2001
Source_Citation_Abbreviation: SSURGO
Source_Contribution:
Sherman, Gilliam, Morrow, Harney counties; parts of Wasco, Jefferson, Deschutes, Lake, malheur, Baker, Union, and Umatilla counties.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Oregon Natural Heritage Program
Title: General Land Office (GLO) survey
Other_Citation_Details:
Detailed metadata access for the Willamette Valley can be obtained at the following URL: www.fsl.orst.edu/pnwerc/wrb/access.html. Go to Metadata -> 1851 vegetation. The same methodology was used for the other areas.
Online_Linkage: <http://www.fsl.orst.edu>
Source_Scale_Denominator: 24000
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1851
Ending_Date: 1909
Source_Citation_Abbreviation: GLO survey
Source_Contribution:
Willamette Valley, Umpqua Basin, parts of the Oregon coast, Sycan Marsh, and southern Klamath Lake Basin.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Oregon Natural Heritage Program
Originator: U.S.G.S. Biological Resources Division
Originator: Oregon Department of Fish and Wildlife
Originator: Biodiversity Research Consortium
Originator: Oregon Biodiversity Project
Publication_Date: 1999
Title: Oregon Gap Analysis
Online_Linkage: <http://www.natureserve.org>
Source_Scale_Denominator: 100000
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1999
Source_Citation_Abbreviation: OR-GAP
Source_Contribution:
The use of Gap data was restricted to areas labeled "non forest" in the H.J. Andrews coverage, and for which no other source of data was available: parts of Malheur, Harney, Wheeler, Deschutes, Jefferson, Wasco, Crook, and Grant counties.
Source_Information:
Source_Scale_Denominator: 24000
Source_Citation_Abbreviation: Siskiyou National forest
Source_Contribution:
A forest cover map was used to help delineate the extent of Douglas fir-tan oak in southwestern Oregon.
Process_Step:
Process_Description:
H. J. Andrews.

A digital map of the forests of Oregon and Washington was obtained from Janet Ohman of the PNW Forest and Research Station in Corvallis. No metadata is available with the exception of a list of types. Based on the detail in the cover, it appears to have been developed at an approximately 1:100,000 scale. The map was digitized from original surveys of USFS crews headed by H.J. Andrews in the 1930s, presumably from WPA. The original cover was mapped to forest type, with a secondary classification for young forests. Recent timber harvest areas (clear-cuts) and burned forest were also mapped. Metadata for the original dataset follows:

Export Name: BVBH1936

Pathname: /emp/crbv/crb/veg/hveg36

Date: 14-JUN-95

Theme Name: VEGETATION - HISTORIC OR/WA 1936

Theme Id: 425 Theme Abbreviation: VEGH1936 Export Name: BVBH1936

Disclaimer: The ICBEMP cannot assure the reliability or suitability of this information for a particular purpose. Original data was compiled from various sources. Spatial information may not meet National Map Accuracy Standards. This information may be updated without notification. Project Name: ICBEMP

IDENTIFICATION INFORMATION

Theme Description: Historical Vegetation of Oregon and Washington Coverage Extent: OREGON AND WASHINGTON

Source: US FOREST SERVICE Last Update: 14-JAN-95 Feature Type: POLYGON Distribution Limit: NONE Theme Keywords: VEGETATION, HISTORICAL, ANDREWS Data Resolution: 1:500000 Projection: ICBEMP ALBERS File Pathname: /emp/crbv/crb/veg/hveg36 Comments: Captured from the 1936-37 Historical Vegetation Maps from HJ Andrews and Cowlins.

SOURCE INFORMATION Source System: LINE TRACE FOR X WINDOWS Source Scale: 1:500000 Source Projection: ALBERS Capture Method: Digital capture via manuscript then scanning.

CUSTODIAN INFORMATION Contact Org: USFS Contact Person: ANDY WILSON Contact Phone: Email Id: Contact Address: ICBEMP SPATIAL ANALYSIS TEAM 333 SW FIRST PORTLAND, OR 97204

PROCESSING INFORMATION Theme Generation: Lineage: Data Transfer: Procedure Contact: ANDY WILSON

ATTRIBUTE INFORMATION Label Type: ARC Table Name: HVEG36.PAT Length: 3 Attribute Name: HVEG36_CD Attribute Value Type: C

Attribute Value Description 1 NON-FOREST 2 AGRICULTURAL ZONE 3 SUBALPINE AND NONCOMMERCIAL 4 LODGEPOLE PINE 5 JUNIPER 6 DOUGLAS FIR;OLD GROWTH 7 DOUGLAS FIR;LARGE SECOND GROWTH 8 DOUGLAS FIR;SMALL SECOND GROWTH 9 DOUGLAS FIR;SEEDLING,SAPLING,POLE 10 SPRUCE-HEMLOCK;LARGE 11 SPRUCE-HEMLOCK-CEDAR;SMALL 12 CEDAR-REDWOOD;LARGE 13 PONDEROSA PINE:SMALL 14 PURE PONDEROSA PINE:LARGE 15 PONDEROSA PINE,SMALL 16 PONDEROSA PINE;SEEDLING-SAPLING-POLE 17 PINE MIX;LARGE 18 PINE MIX;SMALL 19 BALSAM FIR-MT HEM-UPPER SLOPE TYPES;LARGE 19W WESTERN WHITE PINE;LARGE 20 BALSAM FIR-MT HEM-UPPER SLOPE TYPES;SMALL 20W WESTERN WHITE PINE;SMALL 21 HARDWOOD,ALDER-ASH-MAPLE 22 HARDWOOD,OAK-MADRONE 23 RECENT CUTOVER 24 NON-RESTOCKED CUTOVER 25 DEFORESTED BURNS W WATER

Label Type: ARC Table Name: HVEG36.PAT Length: 50 Attribute Name: HVEG36_NAME Attribute Value Type: C

Before the cover was used, areas classified as young were re-classed to the forest type (ie young Douglas-fir became Douglas-fir). Polygons labeled as recent timber harvest areas and burned forest were individually re-classed, based on adjacent forest communities, elevation, and location by Jimmy Kagan and Jim Stritholt. The original cover also included forest types named "Balsam fir" and "non-commercial forests". These types were split into four separate forest communities by Jimmy Kagan, based on the locations of the polygons, as described below.

Reclasses were in the following steps: For non-forest land in the west-side interior valleys and in southwestern Oregon, data from the Valley Historic Vegetation coverage was patched in. Non-forest Polygons along the Pacific coast and along the Columbia River were reclassed as either wetlands, dunes, or prairies. All non-commercial forest types were reclassified as subalpine fir except in the following cases. 1. Klamath Mountain ecoregion non-commercial forests were classified as Jeffery Pine. In coastal areas, Lodgepole Pine was reclassified as Shore Pine. Juniper was left as depicted. 2. All Douglas-fir age classifications were merged into one classification. 3. Both Spruce-hemlock classes were merged into one. 4. Cedar-Redwood polygons in Curry County (seven small polygons and two large polygons) were reclassified as Coast Redwoods. Other Cedar-Redwood polygons in the Siskiyou Mountains were classified as Port Orford Cedar. The remaining Cedar-Redwood areas were classified as Western Red Cedar. 5. All ponderosa pine were merged into one classification. 6. All mixed pine classes were merged into one. 7. Balsam Firs, Mountain Hemlock and upper slope types in the Klamath Mountains and southern Cascades were classified as Shasta fir-White fir. All other Balsam Firs, Mountain Hemlock and upper slope types were classified as Pacific Silver Fir-Mountain Hemlock. 8. Hardwoods (alder, ash, willow) were merged with 'bottomland hardwoods/Gallery forests' from the Valley Historic Vegetation coverage to create a Bottomland Hardwoods classification. Some areas of this were added in the Grande Ronde valley. 9. Oak and Mandrone forests were renamed Oak-Mandrone. 10. Recent cut-over, nonforested cut-overs, and deforested burns were reclassified based on adjacent vegetation and personal knowledge.

Process_Date: 01-14-1995
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Andy Wilson
Contact_Organization: U.S. Forest Service
Contact_Address:
Address_Type: mailing and physical address
Address: ICBEMP SPATIAL ANALYSIS TEAM
Address: 333 SW FIRST
City: PORTLAND
State_or_Province: OR
Postal_Code: 97204
Country: USA
Process_Step:
Process_Description:
SE Oregon.

A digital map of current vegetation for southeastern Oregon was originally created from BLM coverages, SSURGO data, and Gap data when no other data source was available, as part of a different project. Specific metadata for this coverage can be obtained from Claudine Tobalske. The coverage was updated to reflect plausible presettlement vegetation patterns. The following vegetation and land-use types were removed or modified: crested wheatgrass (Agropyron cristatum); cheatgrass (Bromus tectorum); agriculture; recent burns; recent cuts; urban; reservoirs; mines and quarries; western juniper woodland; and forest.

For Wasco, Sherman, Gilliam, Morrow, Umatilla, Union, Baker, and part of Jefferson and Lake counties, land cover polygons were obtained from from the Soil Survey Geographic (SSURGO) database. The 1:24,000 soil polygons came with associated databases for climax/historical plant composition and climax/historical tree cover. Because SSURGO data present potential vegetation based on soil types, they were used to replace post-settlement vegetation and land-use types. Where SSURGO data were not available, these types were replaced with potential pre-settlement vegetation based on the composition of adjacent polygons, and the presence of rivers and streams (for riparian areas and bottomlands). Recent burns and regenerating young forests were reverted to forest. In addition, polygons from the GLO survey were incorporated in Umatilla county (prickly pear grassland, tufted hairgrass). SSURGO polygons were also recoded throughout the area to reflect the presence of riparian vegetation (with on-screen digitizing when necessary).

Location of western juniper patches was checked against their location in the H.J. Andrews map. Those polygons that were not labeled juniper in the H.J. Andrews map were recoded based on shrub vegetation in the polygons (e.g., "Western juniper/Wyoming big sagebrush" polygons were recoded "Wyoming big sagebrush"), or based on the composition of adjacent polygons. On-screen digitizing was sometimes required.

Forest boundaries were adjusted to match those of the Andrews map, with on-screen digitizing when necessary.

Process_Date: 2001
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Claudine Tobalske
Contact_Organization: Oregon Natural Heritage Program
Contact_Position: GIS Analyst
Contact_Address:
Address_Type: mailing and physical address
Address: 1322 SE Morrison Street
City: Portland
State_or_Province: OR
Postal_Code: 97214
Country: USA
Contact_Voice_Telephone: 503-731-3070 ext. 117
Contact_Facsimile_Telephone: 503-731-3070
Contact_Electronic_Mail_Address: claudine.tobalske@orst.edu
Process_Step:
Process_Description:
General Land Office (GLO) survey

GLO surveys depict presettlement vegetation in Oregon as described by surveyors for the General Land Office between 1851 and 1909, when surveying township and section lines. Most low-elevation sites with arable land were surveyed between 1851 and 1865, while most foothill and mountainous areas were surveyed between 1865 and 1895. Coverages were created at 1:24,000 using databased transcriptions of survey notes for township and section lines, with standard USGS 7.5 topographic maps as a base. Soil Survey Geographic (SSURGO) digital data were used in the Willamette Valley to identify hydric soils and separate wet prairies from upland prairies. Because the survey presents vegetation patterns at a specific date, burned and storm-damaged forest patches were recoded to the corresponding forest type to make the coverage less time-specific. A map of current forest cover types for the Siskiyou National Forest was used to help delineate the extent of Douglas fir-tan oak forest east of the available GLO data in southwestern oregon.

Process_Date: 2001
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Claudine Tobalske
Contact_Address:
Process_Step:
Process_Description:
Oregon Gap

A new Gap map was created by merging the first (1992) and second (1999) Gap vegetation maps, deleting slivers smaller than 40 ha, and examining each remaining polygon individually to label it. When labels from the two original Gap maps were not in agreement (e.g., 1992 Gap = Rigid sagebrush-Sandbergs bluegrass, 1999 Gap = Big sagebrush shrubland), J. Kagan was consulted to determine which label was most likely to be correct. In addition, an elevation cut-off of 1700m was selected, above which Wyoming big sagebrush was recoded as Mountain big sagebrush. The MRLC classified satellite image of Oregon was also used in the labeling process, principally to confirm the location of agricultural polygons.

Process_Date: 2001
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Claudine Tobalske
Process_Step:
Process_Description:
Edge matching

After updating the H.J. Andrews coverage with other coverages, straight edges sometimes resulted from polygons abruptly ending at the end of a coverage and not continuing into the adjacent coverage. These were eliminated as best as possible through polygon recoding and on-screen digitizing. The most detailed coverage was given priority when vegetation types differed between two adjacent coverages: SSURGO dominant over Gap, GLO dominant over H.J. Andrews. Exceptions were made when the less detailed coverage was historically more accurate (e.g., H.J. Andrews vs. SSURGO).

Process_Date: 2001
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Claudine Tobalske
Process_Step:
Process_Description: Dataset copied.
Source_Used_Citation_Abbreviation:

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 43628

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Lambert Conformal Conic
Lambert_Conformal_Conic:
Standard_Parallel: 43.000000
Standard_Parallel: 45.500000
Longitude_of_Central_Meridian: -120.500000
Latitude_of_Projection_Origin: 41.750000
False_Easting: 1312335.958000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.001024
Ordinate_Resolution: 0.001024
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137
Denominator_of_Flattening_Ratio: 298.257

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: historic_vegetation
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: VEGNAME
Attribute_Definition: Land cover type
Attribute:
Attribute_Label: AREA
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: PERIMETER
Attribute:
Attribute_Label: HISTVEGCOV
Attribute:
Attribute_Label: HISTVEGC_1

Distribution_Information:
Resource_Description: Downloadable Data
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 156.306
Available_Time_Period:
Time_Period_Information:
Single_Date/Time:

Metadata_Reference_Information:
Metadata_Date: 20050920
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Claudine Tobalske
Contact_Organization: Oregon Natural Heritage Program
Contact_Address:
Address_Type: mailing and physical address
Address: 1322 SE Morrison Street
City: Portland
State_or_Province: OR
Postal_Code: 97214
Country: USA
Contact_Voice_Telephone: 503-731-3070 ext. 117
Contact_Facsimile_Telephone: 503-731-3070
Contact_Electronic_Mail_Address: claudine.tobalske@orst.edu
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile

Generated by mp version 2.8.6 on Tue Sep 20 08:12:04 2005