S_R03.Ecological_Response_Unit

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator:
USDA Forest Service, Southwestern Region, Regional GIS Coordinator
Publication_Date: 20180928
Title: S_R03.Ecological_Response_Unit
Geospatial_Data_Presentation_Form: vector digital data
Description:
Abstract:
(Version 5.2)Ecological Response Units (ERUs) facilitate landscape analyses and planning. The framework represents all major ecosystem types of the southwest region, and represents a stratification of biophysical themes. ERUs are used to define historic/reference conditions within a mapping unit by integrating site potential (soil physical and chemical properties, geology, geomorphology, aspect, slope, climate variables, and geographic location), fire regime (historic and contemporary), neighboring vegetation communities, and seral state sequence.The process by which this dataset was created is as follows:The input data were forest Terrestrial Ecological Unit Inventory (TEUI) survey data that were crosswalked to the ERU list, ERU version 4, corrections to ERU version 4 utilizing a climate gradient to identify anomalous attribution, a collaborative review product with the University of Arizona’s Ecologist Jim Malusa, Integrated Landscape Assessment Project (ILAP) data, Regional Riparian Mapping Project (RMAP) data, and subclass information derived from an ILAP grid analysis. The data layers listed above were assembled in a hierarchical order starting with the ERU version 4 data through a series of geoprocessing updates. Highest confidence was placed on TEUI data and RMAP data so those datasets were burned into the product last. During key review periods by resource specialists, there were metrics built to analyze percent of ERUs that lay on the border of a climate gradient or a Southwest Biotic Community (Brown and Lowe). These metrics were used to inform attribution for ERUs that needed evaluation by the resource specialist. Additional processing was performed using the Eliminate tool to reduce the amount of “noise” in the dataset brought on by fragmented polygons smaller than a parametric minimum map unit. The minimum map unit was defined as 1 hectare for grassland, shrubland, forest, woodland, and great plains system types and 1 acre for riparian types. By virtue of the Eliminate tool, polygons that did not meet the minimum map unit were merged to a neighboring polygon that shared the largest boundary. RMAP data was used as an exclusion dataset and no changes were made to that via the Eliminate processing. Multiple QA/QC reviews were performed at many stages of the building of the layer and as products were being finalized. During these reviews, updates were made to the layer as needed. The creation of the regional extent layer came via a marriage of two halves of the region. The southern product was delineated by ecoregion boundaries that formed the combined context area of analysis for the Gila and Lincoln National Forests. This was necessary due to time constraints imposed by Forest Plan Revision Assessments for those forests. The remainder of the region was assembled independently but in an identical way to the southern portion. Once complete, the two datasets were joined together via a data load to eliminate any possibility of errors brought on by additional geoprocessing. The regional product was then reviewed to identify any errors along the boundary between the two layers. The full dataset was added to the corporate SDE as a beta product and will be considered complete and in a maintenance as needed status. Additional changes to the dataset ought to be documented as process steps.This layer was developed through iterative and collaborative efforts of Forest Plan Revision assessment.
Purpose:
The purpose of this feature class is to be an ecosystem mapping tool across all of Arizona and New Mexico
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20180928
Currentness_Reference: This dataset was published to SDE
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -115.183538
East_Bounding_Coordinate: -102.762158
North_Bounding_Coordinate: 37.143226
South_Bounding_Coordinate: 31.144599
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: ERU
Theme_Keyword: Ecological Response Units
Theme_Keyword: Potential Vegetation
Theme_Keyword: Southwestern Region
Theme_Keyword: Forest Service
Access_Constraints: None
Use_Constraints:
Comparison with other data sets for the same area from other time periods may be inaccurate due to inconsistencies resulting from changes in photointerpretation, rounding of decimal coordinates during conversion, and mapping conventions over time. Any hardcopies utilizing these data sets shall clearly indicate their source. If the user has modified the data in any way, they are obligated to describe the types of modifications they have performed on the hardcopy map. The user specifically agrees not to misrepresent these data sets, nor to imply that changes made were approved by the USFS.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USDA Forest Service, Southwestern Region
Contact_Position: Regional GIS Coordinator
Contact_Address:
Address_Type: mailing and physical
Address: 333 Broadway SE
City: Albuquerque
State_or_Province: New Mexico
Postal_Code: 87102-3498
Country: US
Contact_Voice_Telephone: 505-842-3292
Contact_TDD/TTY_Telephone: 505-842-3198
Contact_Facsimile_Telephone: 505-842-3800
Contact_Electronic_Mail_Address: mailroom_r3@fs.fed.us
Hours_of_Service: 0800-1630 Monday - Friday, Mountain Time.
Native_Data_Set_Environment: Version 6.2 (Build 9200) ; Esri ArcGIS 10.3.1.4959

Data_Quality_Information:
Lineage:
Process_Step:
Process_Description: ERU Version 5 Regional Combined dataset loaded into SDE
Process_Date: 20160108
Process_Step:
Process_Description: Metadata created and loaded into feature class
Process_Date: 20160218
Process_Step:
Process_Description:
-Mixed Conifer with Aspen changed to Mixed Conifer Frequent Fire for COC TEUI MUs-650, 652 and APS TEUI MUs-201,207 -Mixed Conifer Frequent Fire changed to Mixed Conifer with Aspen for COC TEUI MU-555 and APS TEUI MU-206 -PJ Woodland changed to PJ Grass for COC TEUI MUs-438,439,440,445,460,465,473 -Semi-Desert Grassland Provisional Subclass changed from Sandy Plains Grassland (SPG) to Semi-Desert Shrubland (SDSH) for COC TEUI MUs-350,381,385
Process_Date: 20160518
Process_Step:
Process_Description:
-18 map features on the Santa Fe currently attributed as 'Herbaceous Wetland', based on TEUI MUs 340 and 341. Original RMAP features were mistakenly attributed as 'Herbaceous Wetland (190)' but need to be changed to Alpine (ALP). Source needs to be changed to SFE_TEUI -Juniper Grass - Mild: 33 polygons changed to Juniper Grass - High Sun Mild on Lincoln NF -PJ Grass - Mild: 210 polygons changed to PJ Grass - High Sun Mild on Lincoln NF -SDGhsm on Prescott NF changed to SDGlsm for TEUI MU 45 and 410. Provisional Subclass unchanged
Process_Date: 20160602
Process_Step:
Process_Description:
-LIN TEUI unit 0001F changed from MPO to PJC -LIN TEUI unit 0003E changed from MPO to PJC -LIN TEUI unit 0103H changed from PJO to JUGm -LIN TEUI unit 0105H changed from CDS to SDGhsm (FHG) -LIN TEUI unit 0150H changed from PJOm to JUGm -LIN TEUI unit 0151H changed from PJOm to JUGm -LIN TEUI unit 0196F changed from MPO to PJC -LIN TEUI unit 0198F changed from MPO to PJC -LIN TEUI unit 0253F changed from MPO to PJC -LIN TEUI unit 0259G changed from MPO to PJC -LIN TEUI unit 0260H changed from PJOm to JUGm -LIN TEUI unit 0261G changed from MPO to PJC -LIN TEUI unit 0261H changed from SDGhsm (PFG) to SDGhsm (FHG) -LIN TEUI unit 0263H changed from SDGhsm (PFG) to SDGhsm (FHG) -LIN TEUI unit 0266H changed from SDGhsm (PFG) to SDGhsm (FHG) -LIN TEUI unit 0274H changed from PJOm to JUGm -LIN TEUI unit 0278H changed from PJOm to JUGm
Process_Date: 20160707
Process_Step:
Process_Description:
-LIN TEUI units 0103H, 0150H, 0151H, 0260H, 0274H, 0278H changed from JUGm to PJGhsm
Process_Date: 20160804
Process_Step:
Process_Description:
Additional Riparian subclasses were added to the Herbaceous (wetland), 190, class: Upper Riparian (10, uppr) – Upper life zones within mild and cold gradients (mostly life zones 6, 7), associated with 110, 230, 240, 280, 290; Mid Riparian (11, mid) – Middle life zones within mild and cold gradients (mostly life zones 4, 5), associated with 160, 210, 300, 350*; Lower Riparian, Mild (12, lwrm) – Lower life zones within mild gradients (mostly life zones 1, 2, 3), associated with RMAP units 130, 150, 170, 180, 250, 260, 270, 360; Lower Riparian, Cold (13, lrwc) – Lower life zones within cold gradients (mostly life zones 3, 4), associated with 280, 350*, 370; Great Plains Riparian (14, grpl) – In and near National Grasslands, associated with 310, 320. * - Unit 350 can occur in either lower or mid riparian zones
Brief Methodology: Classed surrounding ERU vegetation into Life Zones and then into Riparian subclasses based on those life zones. Completed same process for Riparian vegetation other than 190. Ran the Eliminate tool on vegetative classes that were ambiguous to find most common adjacent life zone/subclass to infer subclass type. Ran the Eliminate tool iteratively to class Riparian 190 first with ERU vegetation, then with Riparian vegetation, overwriting any subclass type from ERU vegetation with Riparian vegetation. 14 unclassed polygons were manually classed based on surrounding vegetation. Finally, re-classed Riparian polygons with any existing subclasses.
Process_Date: 20180824

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 879236

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: North America Lambert Conformal Conic
Lambert_Conformal_Conic:
Standard_Parallel: 32.0
Standard_Parallel: 36.0
Longitude_of_Central_Meridian: -108.0
Latitude_of_Projection_Origin: 0.0
False_Easting: 0.0
False_Northing: 0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.0001
Ordinate_Resolution: 0.0001
Planar_Distance_Units: meter
Geodetic_Model:
Horizontal_Datum_Name: D North American 1983
Ellipsoid_Name: GRS 1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: S_R03.Ecological_Response_Unit
Attribute:
Attribute_Label: OBJECTID
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: R3ERU
Attribute_Definition: Ecological Response Unit designation
Attribute_Definition_Source: R3 Assessment Team
Attribute:
Attribute_Label: R3ERUCODE
Attribute_Definition: Alpha numeric code denoting ERU designation
Attribute_Definition_Source: R3 Assessment Team
Attribute:
Attribute_Label: R3ERUSUBCL
Attribute_Definition: Subclass information associated with an ERU designation
Attribute_Definition_Source: R3 Assessment Team
Attribute:
Attribute_Label: R3ERUSUBCLCODE
Attribute_Definition:
Alpha numeric code denoting subclass information associated with an ERU designation
Attribute_Definition_Source: R3 Assessment Team
Attribute:
Attribute_Label: PROV_SUBCL
Attribute_Definition:
Provisional Subclass information associated with an ERU designation
Attribute_Definition_Source: R3 Assessment Team
Attribute:
Attribute_Label: SYSTEMTYPE
Attribute_Definition:
System Type designation refers to ecosystem type designation (forest, woodland, grassland, shrubland, great plains, riparian, wetland, or other)
Attribute_Definition_Source: R3 Assessment Team
Attribute:
Attribute_Label: SOURCE
Attribute_Definition: Source of input dataset for a mapping unit for data tracking
Attribute_Definition_Source: R3 Assessment Team
Attribute:
Attribute_Label: TEUI_MUS
Attribute_Definition: Terrestrial Ecological Unit Inventory survey map unit ID
Attribute_Definition_Source: R3 Assessment Team
Attribute:
Attribute_Label: UID_
Attribute:
Attribute_Label: SHAPE
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: WEB_SYMBOL
Attribute:
Attribute_Label: SHAPE.AREA
Attribute:
Attribute_Label: SHAPE.LEN

Metadata_Reference_Information:
Metadata_Date: 20181017
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USDA Forest Service, Southwestern Region
Contact_Position: Regional GIS Coordinator
Contact_Address:
Address_Type: mailing and physical
Address: 333 Broadway SE
City: Albuquerque
State_or_Province: New Mexico
Postal_Code: 87102-3498
Country: US
Contact_Voice_Telephone: 505-842-3292
Contact_TDD/TTY_Telephone: 505-842-3198
Contact_Facsimile_Telephone: 505-842-3800
Contact_Electronic_Mail_Address: mailroom_r3@fs.fed.us
Hours_of_Service: 0800-1630 Monday - Friday, Mountain Time.
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time

Generated by mp version 2.9.12 on Wed Oct 17 09:24:39 2018