Layer: AST_EMS (ID:0)

View In: Map Viewer

Name: AST_EMS

Display Field: CommonName

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: The Texas Parks and Wildlife Department, in cooperation with private, state, and federal partners, has produced a new land classification map for Texas, based on the NatureServe Ecological System Classification System as described by Comer (2003). Mapping Sub-systems were identified using ecological systems as a starting point. Data was collected in the field and from aerial photography to implement a supervised classification. This land cover data was combined with ecoregions, SSURGO soils, DEM-based variables, and hydrology to help interpret the ecological meaning of final mapping targets. Improved thematic and spatial resolution was achieved using a decision tree classifier with both remotely sensed and abiotic variables, map objects generated at 10 m resolution, and the modeling of mapping targets using ecological site descriptions from SSURGO soils and data from the NatureServe systems classifications. Project and partner ecologists have produced detailed descriptions of all Ecological Systems and Mapping Sub-systems that occur throughout the state. This includes floristic details refined by field data collected by project personnel, along with ecological processes such as fire, grazing, flooding that formed or maintains the systems, and the soils and geology that influence the systems. Project ecologists have also developed an Interpretive Guide that includes a general description of each Ecological System and subordinate Mapping Sub-systems, a representative photo of most Mapping Sub-systems, a list of public properties where an example of each system may be viewed, and a map showing the mapped distribution of each sub-system. The interpretive guide also includes a detailed project methodology and ecological information on select eco-regions.

Copyright Text: TPWD Missouri Resource Accessment Partnership(MoRAP) and Texas Natural Resource Information Systen (TNRIS)

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Use Standardized Queries: True

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Object ID Field: OBJECTID

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OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
Veg_ID (type: esriFieldTypeSmallInteger, alias: Veg ID, SQL Type: sqlTypeOther, nullable: true, editable: true)
LandcoverType (type: esriFieldTypeString, alias: LandcoverType, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
CommonName (type: esriFieldTypeString, alias: CommonName, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
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Templates:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 3/24/2025 5:46:06 PM

Schema Last Edit Date: 3/24/2025 5:46:06 PM

Data Last Edit Date: 3/20/2025 4:30:10 PM

Supported Operations: Query Query Top Features Query Analytic Query Bins Generate Renderer Validate SQL Get Estimates ConvertFormat