Land Resources of NT Portions 1580 and 1695, Lambells Lagoon, Northern Territory

Index:

Metadata
Citation
Description

Dataset Status
Data Quality
Contact Information
Data Dictionary
Supplementary Information

Metadata Details:

Name:AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile

Version:1.0

Date Metadata Extracted:2026-03-12

Date Metadata Last Updated:2026-03-02

Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=4C025F4F8DA9589FE0632144CD9B2A7B

Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=4C025F4F8DA9589FE0632144CD9B2A7B

Citation

ANZLIC Identifier:4C025F4F8DA9589FE0632144CD9B2A7B

Title: Land Resources of NT Portions 1580 and 1695, Lambells Lagoon, Northern Territory

Citation Date:2026-03-02

Date Type:creation

Custodian:Department of Lands, Planning and Environment

Description

Abstract:

This spatial dataset delineates Land Units at a scale of 1:20,000 over approximately 1824 ha of two NT Portions located 40 km to the south-east of Darwin to better inform future land resource management. Dominant landform, soils and vegetation are described for each Land Unit, and general land capability is assessed.

ANZLIC Search Words:

biota

environment

farming

geoscientificInformation

planningCadastre

Spatial Domain:

Bounding Coordinates:

North Bounding Coordinate:-12.569455

South Bounding Coordinate:-12.613512

East Bounding Coordinate:131.237752

West Bounding Coordinate:131.193115

Dataset Status

Dataset ID:

Language:English

Character Set: Latin 1

Progress:completed

Maintenance and Update Frequency:notPlanned

Data Currency Start Date:

Data Currency End Date:

Access Constraint:Download the spatial data package (contains ESRI spatial data) via data.nt.gov.au/
Data supplied by this Department is licensed under the Creative Commons Attribution 3.0 Australia License. (CC BY 3.0) Please read the licence: creativecommons.org/licenses/by/3.0/au/deed.en
Data, and all derivatives, must be attributed with this statement; Data supplied by Department of Lands, Planning and Environment. Copyright Northern Territory of Australia.

Data Quality

Lineage:Map land unit boundaries delineated from interpretation of digital aerial photography (15cm), satellite imagery including ESRI World Imagery, Google Satellite Imagery and Sentinel-2 imagery.
Field data described and classified according to national standards at the time of capture. Final map unit boundaries adjusted to account for field data. Core landform, soil and vegetation attributes attached to map units with additional attributes unique to individual surveys.
Spatial data formats are ESRI file geodatabase and shapefiles. Data is stored in datum GDA94, geographics.

Positional Accuracy:Polygon data - map unit boundaries delineated on screen using geographical information system software at a scale of 1:20,000. Positional accuracy generally considered to be very high.

Attribute Accuracy:The attribute information conforms to the 'Australian Soil and Land Survey Field Handbook' at time of capture. Survey methodologies and related technical assessments used during the investigation are listed in the accompanying technical report:
Mapped land units typically exhibit a uniform pattern on aerial photography or satellite imagery, and present as a repeatable and recognisable combination of landscape terrain, soil type and associated vegetation community. While some degree of variation is normally expected within a land unit, such variation is usually too small or too inconsistent to map separately at the given survey scale. Attributes assigned according to the dominant feature. For example, where five sites have been grouped to describe a particular map unit and two different soils described from these sites then the dominant soil is chosen. The department's list of core attribute values, described in the Data Dictionary below, have been added to each polygon.
Each land unit has also been assessed for GENERAL LAND CAPABILITY, evaluating landscape characteristics that could influence the general use of the land. A General Land Capability Class of Class 1 Land with negligible constraints to Class 4 Land with Extreme Constraints has been assigned to each land unit. Descriptions for key characteristics considered important have been added to the land unit polygon, including flooding, microrelief, salinity, slope (as a surrogate for water erosion), sodicity, soil depth, soil drainage and surface rock.

Bott J (2025).
Land Resources of NT Portions 1580 and 1695, Lambells Lagoon, Northern Territory.
Technical Report 4/2026, Department of Lands, Planning and Environment, Northern Territory Government, Darwin.

Logical Consistency:GIS editing tools were used to rectify all overshoots and undershoots in line work. Polygon topology rules applied are; must not overlap and must not have gaps.

Completeness:Complete.

Contacts

Name Organisation Position Role Phone Fax Email

Data Requests Officer Department of Lands, Planning and Environment Geospatial Services Unit (on behalf of department) distributor Datarequests.DLPE@nt.gov.au

Name	Organisation	Position	Role	Phone	Fax	Email
Data Requests Officer	Department of Lands, Planning and Environment	Geospatial Services Unit (on behalf of department)	distributor			Datarequests.DLPE@nt.gov.au

Data Dictionary

Attribute Attribute Description Possible Code Code Description

01. SURVEY_NME Survey Name
The name of the survey area or report to which the mapping refers.

02. SURVEY_ID Survey Identifier
A department code that usually refers to the first five characters from the original survey site sheet.

03. LAND_UNIT Land Unit
The LAND_UNIT field is the land unit label from the spatial dataset (i.e. 8a1).

04. LF_CLASS Landform Class
Landform class is a system adopted by the department. The categories do not completely conform to national criteria even though most are sourced from Australian Soil and Land Survey - Field Handbook (NCST, 2009).

05. SOIL_SYS Soil Classification System
The classification system used to describe the soil in the land unit description.

06. SOIL Dominant Soil Order
The dominant soil order as described in a land unit.

07. VEG_SYS Vegetation Classification System
The classification system used to describe the vegetation in the land unit description.

08. VEG_STRUC Dominant Vegetation Structure
The dominant vegetation structure as described in a land unit.

09. SPECIES_1 Veg Dom Species 1
The dominant vegetation species described in a land unit. The order of species listed determines their dominance.

10. SPECIES_2 Veg Dom Species 2
Where 2 dominant vegetation species were described in a land unit. The order of species listed determines their dominance.

11. SPECIES_3 Veg Dom Species 3
Where 3 dominant vegetation species described in a land unit. The order of species listed determines their dominance.

12. LF_DESC Landform Description
Landform description includes details about landform, and general notes pertaining to slope, surface gravel and other details describing the land unit.

13. SOIL_DESC Soil Description
Soil description includes classification information and usually includes colour, soil depth and other notes describing the soil.

14. VEG_DESC Vegetation Description
The dominant species and its structure are recorded. Occasionally it will include 'minor' vegetation communities also noted in the land unit description and/or notes specific to the community.

15. FLOODING Capability Class - Flooding
Assessment criteria use estimates of Average Recurrence Interval (ARI), to gauge the regularity and severity of potential flood events. Estimated values have been aligned with recognisable alluvial landforms as a surrogate for ARI where suitable modelled data is unavailable. 1 Flood-free

2 Extremely rare - <1 in 30 years

3 Rare - 1 in 10-30 years

4 Regular to permanent - >1 in 10 years

16. MICRELIEF Capability Class - Gilgai Microrelief
Assessment criteria are based primarily on the vertical interval (VI) of the gilgai microrelief (i.e. height difference between mound crest and depression base); although the spatial extent and relative proportions are also considered. 1 None - Gilgai absent or negligible

2 Minor - Crabhole, normal or linear gilgai with an average VI <0.3 m, or with a limited extent

3 Severe - Lattice or melonhole gilgai with an average VI 0.3-0.6 m

4 Extreme - Lattice or melonhole gilgai with an average VI >0.6 m

17. SALINITY Capability Class - Salinity
Assessment criteria are based on average 'whole of profile' ECe values (saturated extract electrical conductivity) to a depth of 1.5 m (or shallower where hard substrate is encountered). 1 Non-saline - ECe <2 dS/m

2 Slightly saline - ECe 2-4 dS/m

3 Moderately saline - ECe 4-8 dS/m

4 Highly to extremely saline - ECe >8 dS/m

18. SLOPE Capability Class - Slope
Assessment criteria use accepted slope gradient (%) limits defined in the Northern Territory Land Clearing Guidelines (DEPWS 2021), as a surrogate for estimating erosion risk. 1 Low erosion risk - 0-1% slope gradient

2 Moderate erosion risk - 1-2% slope gradient

3 High erosion risk - 2-3% slope gradient

4 Very high erosion risk - >3% slope gradient

19. SODICITY Capability Class - Sodicity
Assessment criteria are based on the presence and severity of sodicity within the upper 0-0.6 m of the soil profile. Sodicity levels below a depth of 0.6 m (while still a potential hazard), have not been considered because of their lesser exposure risk during disturbance. 1 Non-sodic - ESP <6%

2 Slightly to moderately sodic - ESP 6-15%

3 Strongly sodic - ESP 15-20%

4 Extremely sodic - ESP >20%

20. SOILDEPTH Capability Class - Soil depth
Assessment criteria are based on standard depth categories (very shallow to very deep) from the Australian Soil Classification (Isbell and NCST 2021). 1 Deep to very deep - >1.0 m

2 Moderately deep - 0.5-1.0 m

3 Shallow - 0.25-0.5 m

4 Very shallow - <0.25

21. SOILDRAIN Capability Class - Soil drainage
Assessment criteria are based on the soil drainage classes defined by the Australian Soil and Land Survey - Field Handbook (NCST, 2009). Assessment considers both internal soil profile characteristics and external landscape factors that collectively contribute to excessive soil wetness. 1 Rapidly to well drained

2 Moderately well drained

3 Imperfectly drained

4 Poorly to very poorly drained

22. SURFROCK Capability Class - Surface rock
Assessment criteria are based on the combined abundance of surface in-situ rock outcrop, in addition to cobbles (60-200 mm), stones (200-600 mm) and boulders (600- 2,000 mm) (NCST 2009). 1 Nil - 0%

2 Minor - 0-2%

3 Moderate - 2-10%

4 Severe - >10%

23. LCAP_CLASS Capability Class - General Land Capability
General land capability assessment evaluates key land unit characteristics to determine the broad capability of an area for sustainable development. The assessment classifies land on the basis of ten key attributes, with final land capability class is determined by the most constrained attribute. It is not land use or development specific, and does not consider or address individual project requirements, land management practices or potential mitigation strategies. 1 Land with negligible constraints that requires only a basic level of inputs, expertise and investment to sustainably develop and manage the land for a wide range of urban, industrial, infrastructure and/or agricultural land uses.

2 Land with minor or moderate constraints that requires a greater level of inputs, expertise and investment than Class 1 to sustainably develop and manage the land for a range of urban, industrial, infrastructure and/or agricultural land uses.

3 Land with severe constraints that requires a high level of inputs, expertise and investment to sustainably develop and manage the land for a limited range of urban, industrial, infrastructure and/or agricultural land uses.

4 Land with extreme constraints that generally requires an unacceptable level of inputs, expertise and investment to sustainably develop and manage the land; making it either impractical, uneconomic or environmentally unsound for urban, industrial, infrastructure and/or agricultural development to proceed. Where development must proceed the effects must be mitigated.

24. LCAP_DESC1 Land Capability description.

25. DRAINAGE Drainage
The dominant soil drainage classes are defined by the NCST (2009). Assessment considers both internal soil profile characteristics and external landscape factors that collectively contribute to excessive soil wetness (NCST 2009).

26. SOIL_GROUPING The soil grouping name as described in the report.

Attribute	Attribute Description	Possible Code	Code Description
01. SURVEY_NME	Survey Name The name of the survey area or report to which the mapping refers.
02. SURVEY_ID	Survey Identifier A department code that usually refers to the first five characters from the original survey site sheet.
03. LAND_UNIT	Land Unit The LAND_UNIT field is the land unit label from the spatial dataset (i.e. 8a1).
04. LF_CLASS	Landform Class Landform class is a system adopted by the department. The categories do not completely conform to national criteria even though most are sourced from Australian Soil and Land Survey - Field Handbook (NCST, 2009).
05. SOIL_SYS	Soil Classification System The classification system used to describe the soil in the land unit description.
06. SOIL	Dominant Soil Order The dominant soil order as described in a land unit.
07. VEG_SYS	Vegetation Classification System The classification system used to describe the vegetation in the land unit description.
08. VEG_STRUC	Dominant Vegetation Structure The dominant vegetation structure as described in a land unit.
09. SPECIES_1	Veg Dom Species 1 The dominant vegetation species described in a land unit. The order of species listed determines their dominance.
10. SPECIES_2	Veg Dom Species 2 Where 2 dominant vegetation species were described in a land unit. The order of species listed determines their dominance.
11. SPECIES_3	Veg Dom Species 3 Where 3 dominant vegetation species described in a land unit. The order of species listed determines their dominance.
12. LF_DESC	Landform Description Landform description includes details about landform, and general notes pertaining to slope, surface gravel and other details describing the land unit.
13. SOIL_DESC	Soil Description Soil description includes classification information and usually includes colour, soil depth and other notes describing the soil.
14. VEG_DESC	Vegetation Description The dominant species and its structure are recorded. Occasionally it will include 'minor' vegetation communities also noted in the land unit description and/or notes specific to the community.
15. FLOODING	Capability Class - Flooding Assessment criteria use estimates of Average Recurrence Interval (ARI), to gauge the regularity and severity of potential flood events. Estimated values have been aligned with recognisable alluvial landforms as a surrogate for ARI where suitable modelled data is unavailable.	1	Flood-free
		2	Extremely rare - <1 in 30 years
		3	Rare - 1 in 10-30 years
		4	Regular to permanent - >1 in 10 years
16. MICRELIEF	Capability Class - Gilgai Microrelief Assessment criteria are based primarily on the vertical interval (VI) of the gilgai microrelief (i.e. height difference between mound crest and depression base); although the spatial extent and relative proportions are also considered.	1	None - Gilgai absent or negligible
		2	Minor - Crabhole, normal or linear gilgai with an average VI <0.3 m, or with a limited extent
		3	Severe - Lattice or melonhole gilgai with an average VI 0.3-0.6 m
		4	Extreme - Lattice or melonhole gilgai with an average VI >0.6 m
17. SALINITY	Capability Class - Salinity Assessment criteria are based on average 'whole of profile' ECe values (saturated extract electrical conductivity) to a depth of 1.5 m (or shallower where hard substrate is encountered).	1	Non-saline - ECe <2 dS/m
		2	Slightly saline - ECe 2-4 dS/m
		3	Moderately saline - ECe 4-8 dS/m
		4	Highly to extremely saline - ECe >8 dS/m
18. SLOPE	Capability Class - Slope Assessment criteria use accepted slope gradient (%) limits defined in the Northern Territory Land Clearing Guidelines (DEPWS 2021), as a surrogate for estimating erosion risk.	1	Low erosion risk - 0-1% slope gradient
		2	Moderate erosion risk - 1-2% slope gradient
		3	High erosion risk - 2-3% slope gradient
		4	Very high erosion risk - >3% slope gradient
19. SODICITY	Capability Class - Sodicity Assessment criteria are based on the presence and severity of sodicity within the upper 0-0.6 m of the soil profile. Sodicity levels below a depth of 0.6 m (while still a potential hazard), have not been considered because of their lesser exposure risk during disturbance.	1	Non-sodic - ESP <6%
		2	Slightly to moderately sodic - ESP 6-15%
		3	Strongly sodic - ESP 15-20%
		4	Extremely sodic - ESP >20%
20. SOILDEPTH	Capability Class - Soil depth Assessment criteria are based on standard depth categories (very shallow to very deep) from the Australian Soil Classification (Isbell and NCST 2021).	1	Deep to very deep - >1.0 m
		2	Moderately deep - 0.5-1.0 m
		3	Shallow - 0.25-0.5 m
		4	Very shallow - <0.25
21. SOILDRAIN	Capability Class - Soil drainage Assessment criteria are based on the soil drainage classes defined by the Australian Soil and Land Survey - Field Handbook (NCST, 2009). Assessment considers both internal soil profile characteristics and external landscape factors that collectively contribute to excessive soil wetness.	1	Rapidly to well drained
		2	Moderately well drained
		3	Imperfectly drained
		4	Poorly to very poorly drained
22. SURFROCK	Capability Class - Surface rock Assessment criteria are based on the combined abundance of surface in-situ rock outcrop, in addition to cobbles (60-200 mm), stones (200-600 mm) and boulders (600- 2,000 mm) (NCST 2009).	1	Nil - 0%
		2	Minor - 0-2%
		3	Moderate - 2-10%
		4	Severe - >10%
23. LCAP_CLASS	Capability Class - General Land Capability General land capability assessment evaluates key land unit characteristics to determine the broad capability of an area for sustainable development. The assessment classifies land on the basis of ten key attributes, with final land capability class is determined by the most constrained attribute. It is not land use or development specific, and does not consider or address individual project requirements, land management practices or potential mitigation strategies.	1	Land with negligible constraints that requires only a basic level of inputs, expertise and investment to sustainably develop and manage the land for a wide range of urban, industrial, infrastructure and/or agricultural land uses.
		2	Land with minor or moderate constraints that requires a greater level of inputs, expertise and investment than Class 1 to sustainably develop and manage the land for a range of urban, industrial, infrastructure and/or agricultural land uses.
		3	Land with severe constraints that requires a high level of inputs, expertise and investment to sustainably develop and manage the land for a limited range of urban, industrial, infrastructure and/or agricultural land uses.
		4	Land with extreme constraints that generally requires an unacceptable level of inputs, expertise and investment to sustainably develop and manage the land; making it either impractical, uneconomic or environmentally unsound for urban, industrial, infrastructure and/or agricultural development to proceed. Where development must proceed the effects must be mitigated.
24. LCAP_DESC1	Land Capability description.
25. DRAINAGE	Drainage The dominant soil drainage classes are defined by the NCST (2009). Assessment considers both internal soil profile characteristics and external landscape factors that collectively contribute to excessive soil wetness (NCST 2009).
26. SOIL_GROUPING	The soil grouping name as described in the report.

Supplementary Information

Department Survey Code (Land Units): LAL24_20
This spatial dataset should not be used at scales greater than 1:20,000
J Bott (2025).
Land Resources of NT Portions 1580 and 1695, Lambells Lagoon, Northern Territory
Technical Report 4/2026, Department of Lands, Planning and Environment, Northern Territory Government, Darwin.

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Download the report (PDF) via the Northern Territory Library; xxx

This record maintained using the NTLIS Metadata Tool

Metadata : Land Resources of NT Portions 1580 and 1695, Lambells Lagoon, Northern Territory