Name: Land Degradation

Display Field: Name

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This layer representing the Land Degradation is a derived dataset from the Abu Dhabi Soil Survey Project 2009. The soil interpretation for ‘Land Degradation’ evaluates the soil factors that imply the presence of a soil condition that may be limiting to plant growth. Categorizing land degradation in a highly eroded and eroding desert environment is problematic. Thus the evaluation presented here has been developed through a consultative process to obtain a consensus of important factors in this environment. The evaluation deviates from conventional assessments of land degradation that usually consider either the soil’s risk (vulnerability) to erosion and degradation under a given set of circumstances (e.g. irrigated agriculture), or the level of degradation that has occurred as a result of human intervention. In this case the evaluation accounts for long-term natural factors that have led to the land being in a relatively degraded state. Thus a saline soil is considered to be degraded even though this may now be considered its natural condition. Similarly a surface lag of gravels is evidence that erosion has happened in the past. The soils may now be stabilized by this surface cover and erosion may no longer occur though the current evaluation would show them as being degraded. In contrast the dune systems that are by definition evidence of soil particle mobility are evaluated as having no degradation. The ratings are for soils in their natural condition; however they also take present land use into consideration by considering land under forestry or agriculture as being protected and so not degraded. Use limitations The data must be used appropriately for the scale of mapping. Prior to decisions about land use more detailed site inspection is likely to be required to develop detailed understanding of soil and site characteristics related to the planned use. Created by Environment Agency Abu Dhabi as part of the Abu Dhabi Soil Survey project. Data Origin:EAD.

Copyright Text: Created by Environment Agency Abu Dhabi as part of the Abu Dhabi Soil Survey project. Data Origin:EAD.

Default Visibility: false

MaxRecordCount: 100

Supported Query Formats: JSON, geoJSON

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: 51.573739286000034
YMin: 22.643029983000076
XMax: 56.018056802000046
YMax: 24.911488818000066
Spatial Reference: 4326  (4326)

Drawing Info:

Renderer:
Unique Value Renderer:
Field 1: Rating
Field 2: null
Field 3: null
Field Delimiter: ,
Default Symbol:
N/A
Default Label: null
UniqueValueInfos:
• Value: 1
  Label: Not degraded or protected
  Description:
  Symbol:
  Style: esriSFSSolid
  Color: [204, 255, 204, 255]
  Outline:
  Style: esriSLSSolid
  Color: [0, 0, 0, 255]
  Width: 1
• Value: 2
  Label: Slight degradation
  Description:
  Symbol:
  Style: esriSFSSolid
  Color: [255, 255, 153, 255]
  Outline:
  Style: esriSLSSolid
  Color: [0, 0, 0, 255]
  Width: 1
• Value: 3
  Label: Moderate degradation
  Description:
  Symbol:
  Style: esriSFSSolid
  Color: [255, 204, 102, 255]
  Outline:
  Style: esriSLSSolid
  Color: [0, 0, 0, 255]
  Width: 1
• Value: 4
  Label: High degradation
  Description:
  Symbol:
  Style: esriSFSSolid
  Color: [255, 204, 204, 255]
  Outline:
  Style: esriSLSSolid
  Color: [0, 0, 0, 255]
  Width: 1
• Value: 0
  Label: Not mapped
  Description:
  Symbol:
  Style: esriSFSSolid
  Color: [242, 242, 230, 255]
  Outline:
  Style: esriSLSSolid
  Color: [0, 0, 0, 255]
  Width: 1
Transparency: 0
Labeling Info:

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• Category ( type: esriFieldTypeString, alias: Category, length: 50 , Coded Values: [Common: Common] , [Not mapped: Not mapped] )
• Hectares ( type: esriFieldTypeDouble, alias: Hectares )
• Shape ( type: esriFieldTypeGeometry, alias: Shape )
• CaptureSource ( type: esriFieldTypeString, alias: Source of Information, length: 255 )
• Shape.STArea() ( type: esriFieldTypeDouble, alias: Shape.STArea() )
• Shape.STLength() ( type: esriFieldTypeDouble, alias: Shape.STLength() )

Supported Operations:   Query   Query Attachments   Generate Renderer   Return Updates

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