U.S. Forest Service
20170504
S_USA.EcomapSections
vector digital data
GTR
WO-76
Washington, DC
USDA - Forest Service
Section descriptions from the cited publication by: Cleland, D.T.; Freeouf, J.A.; Keys, J.E., Jr.; Nowacki, G.J.; Carpenter, C; McNab, W.H.
USDA - Forest Service ECOMAP Team
20170504
Ecological Subregions: Sections and Subsections for the Conterminous United States
vector digital data
GTR
WO-76
Washington, DC
USDA - Forest Service
The Ecomap Sections feature class contains ecological section polygons attributed with section names and descriptions. The EcomapSections 2007 data set describes the ecological sections within the conterminous United States. It contains regional geographic delineations for analysis of ecological relationships across ecological units. ECOMAP is the term used for a USDA Forest Service initiative to map ecological units and encourage their use in ecosystem-based approaches to forest land conservation and management. This is a collaborative effort with many partners. It is coordinated at the national and regional levels by USDA Forest Service staff and implemented in cooperation with State forestry agencies and others. ECOMAP mapping criteria are outlined in the National Hierarchical Framework of Ecological Units (https://www.ncrs.fs.fed.us/gla/reports/hierarchy.htm). The framework systematically divides the country into progressively smaller areas of land and water that have similar physical and biological characteristics and ecological processes.
The purpose of the Ecomap Sections and Subsections data sets is to provide a baseline map of the ecological boundaries. The data can be used for ecological analysis of resource distribution patterns and associations among different ecological land units.
20070101
publication date
As needed
-124.762615
-66.798038
49.386392
24.530689
None
Section
ecoregion
ecomap
ISO 19115 Topic Categories
biota
geoscientificInformation
None
United States
None
The USDA Forest Service makes no warranty, expressed or implied, including the warranties of merchantability and fitness for a particular purpose, nor assumes any legal liability or responsibility for the accuracy, reliability, completeness or utility of these geospatial data, or for the improper or incorrect use of these geospatial data. These geospatial data and related maps or graphics are not legal documents and are not intended to be used as such. The data and maps may not be used to determine title, ownership, legal descriptions or boundaries, legal jurisdiction, or restrictions that may be in place on either public or private land. Natural hazards may or may not be depicted on the data and maps, and land users should exercise due caution. The data are dynamic and may change over time. The user is responsible to verify the limitations of the geospatial data and to use the data accordingly.
USFS Chief Information Office, Enterprise Data Warehouse
data@fs.fed.us
Microsoft Windows Server 2008 R2 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.1.3300
USDA - Forest Service ECOMAP Team
20170504
Ecological Subregions: Sections and Subsections for the Conterminous United States
https://data.fs.usda.gov/geodata/edw/datasets.php?dsetParent=EcomapSections_2007
Data entry is accomplished by authorized Forest Service personnel through a web application behind the U.S. Forest Service firewall and is restricted by access requirement protocols.
Data is complete as of publication.
Data was compiled from geographic reference maps and associated attributes by interagency teams lead by Forest Service administrative regions.
20070101
Vector
GT-polygon composed of chains
191
8.98315284119521e-009
8.98315284119521e-009
Decimal Degrees
D North American 1983
GRS 1980
6378137.0
298.257222101
S_USA.EcomapSections
A collection of geographic features with the same geometry type (such as point, line, or polygon), the same attributes, and the same spatial reference.
http://support.esri.com/en/knowledgebase/GISDictionary/term/feature%20class
MAP_TYPE
The type of mapping these map units represent (e.g., ecological, geological, soils)
NRIS (Natural Resource Information System is a U.S. Forest service database)
ECUN
Ecological Unit
U.S. Forest Service
MAP_LEVEL
Code for the hierarchical level of mapping (i.e., the scale and level of detail for a particular map type) used to create this map unit.
NRIS
SECT
Sections
U.S. Forest Service
PROJECT
User defined code for the name of the project.
NRIS
ECOMAP07
Ecomap 2007
U.S. Forest Service
MAP_UNIT_SYMBOL
The short, user defined code or symbol for the map unit.
NRIS
Symbol code
MAP_UNIT_NAME
The user defined full descriptive name for the section.
NRIS
Name of section
MAP_UNIT_DESCRIPTION
Explanatory description of the section, e.g., the reason a particular section is different from its neighbors
NRIS
Textual description.
SECTION_
Section number
ECOMAP
Number
SECTION_ID
Same as section number
ESRI
Number
OBJECTID
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
S_USA.EcomapSections.AREA
Area
USFS
Null
PERIMETER
Feature Geometry
ESRI
Numerical value representing the perimeter distance
ACRES
Feature Geometry
ESRI
Numerical value representing calculated acres
GIS_ACRES
The area of the feature in acres, calculated in North American Albers Equal Area Conic projection, North American Datum 1983 (NAD83).
ESRI
Numerical value representing calculated acres
GIS_MILES
The length of perimeter of the feature in miles, calculated in North American Albers Equal Area Conic projection, North American Datum 1983 (NAD83).
ESRI
Numerical value representing calculated miles
SHAPE
Feature geometry.
ESRI
Polygon
SHAPE.AREA
Feature Geometry
ESRI
Numerical value representing the area
SHAPE.LEN
Feature Geometry
ESRI
Numerical value representing the shape length
USFS Chief Information Office, Enterprise Data Warehouse
data@fs.fed.us
The U.S. Forest Service makes no warranty, express or implied, nor assumes any liability or responsibility for the accuracy, reliability, completeness, or utility of these geospatial data or for the improper or incorrect use of those data. The data are dynamic and may change over time. The user is responsible for verifying the limitations of the geospatial data and for using the data accordingly.
20170504
USFS Chief Information Office, Enterprise Data Warehouse
data@fs.fed.us
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
local time