Contacts

Identifiers and Keywords

ANZLIC Id

ANZVI0803001033 

Victorian Spatial Data Library (VSDL) Schema

CATCHMENTS:LSYS250 

Jurisdiction

Victoria 

Topic category

• Geoscientific information

Resource Constraints

Use limitation

. 

Classification

Unclassified  

Creative Commons Attribution 4.0 (CC-BY)

• 
• License Text

Other Dataset Details

Date ( Revision )

2021-02-18

Date ( Publication )

2018-02-02T11:25:16

Status

Completed  

Purpose

This data set assists with state and regional planning to define the spatial variation of land according to the parameters of geomorphology, lithology, landform and climate, with dependent variables of soil and vegetation types. Other interpreted data tagged to the land systems includes the hazard potential, ie. inherent susceptibility to various forms of land degradation, and the 'potential productivity'. The maps and land system descriptions are drawn from an uneven database of some 28 individual studies of the land and additional unpublished data, with varying levels of detail and reliability. The land system descriptions are presented as a single line that masks the considerable variation in each land system -- each land system is treated as essentially a single point entity, when in reality it is a complex of land types with a known range of variation. While this is appropriate for some purposes, it is not suitable for all uses, and should be used with care. Potential users not familiar with the land system concept are encouraged to contact the custodian for advice and assistance. Interpretations are of the inherent susceptibility of the land to degradation and do not adequately represent hazards (which involves considerations of land use) which will be of interest to most users. Rowan's initial report, paper maps and transparencies are now considerably out of date following extensive error checking and subsequent revision. While the initial report was never formally released, the revised and expanded Edition 2 is in an unpublished form which has now been modified itself by Edition 3, released in January 2000. 

Credit

The land system data set was initially constructed by Jim Rowan, based on a geomorphic framework erected by Jeff Jenkin, and using more detailed land resource information derived from some twenty-eight other studies. 

Supplemental Information

History: Landmark Steps: Provisionally Approved:29 March, 1994 (edition 2) Approved: Implemented:2000 (Edition 3) Last Reviewed: Relationship to other Datasets: This layer forms a strong relationship with LSYS100 which describes landsystems in more detail. See the previous section for further details. Current Design Issues: The land system code is derived from Geomorphic Unit (GMU), Landform, Lithology, Litholgoical Age and Climate, updated from Edition 2. The landform classes have been changed such that the range of dune landforms have been reduced to two and the broad slope categories (gentle and steep) have been replaced by relative relief classes (plain, rise, low hill, hill, mountain). A number of new lithological categories have been added such as basic volcanics distinguished from volcanics as a whole, as well as metamorphic materials separated out from broader lithological groupings. A new factor for the Statewide code is Lithological Age, which is catagorised in broad terms but provides a framework for more detailed description at a finer scale. Future Design Issues: Some of the source information was prepared at a scale of 1:100 000; some of this has been entered into the Department's GIS. The remainder of the information is at a range of scales and is unlikely to be entered into the GIS. New information will be assembled at a scale of 1:100 000 and will be entered into the GIS. Explicit linkages will be established between the two layers as appropriate. New survey data produced at 1:100 000 scale has been incorporated into the new edition (3) Staetwide land systems. These are Shires of West Wimmera, Lowan and (west) Towong as well as East Gipplsland, east of the Snowy River. Further assessment of the suceptibilities to various forms of land degradation will be required in the future as more information becomes available. Explicit linkages will also be created between layers at larger scales (1:25 000) and point data layers. Related Documents: None The original data set was supported by an unpublished report Land Systems of Victoria, prepared by Jim Rowan for the Land Conservation Council and the Land Protection Branch of DCNR. The revise dataset wase supported by a revised unpublished Departmental publication, Land Systems of Victoria -- Edition 2, by Rowan, Russell and Ransome (1994). The further revised edtion was edited by David Rees , titled Land Systems of Victoria January 2000 Edition 3, Centre for Land Protection Research, Technical report No. 56. http://vro.depi.vic.gov.au/dpi/vro/vrosite.nsf/pages/landform_systems http://vro.depi.vic.gov.au/dpi/vro/vrosite.nsf/pages/landform_land_systems_vic 

Maintenance and update frequency

As needed  

Maintenance date ( Publication )

2018-02-02T11:25:16

Spatial

Spatial representation type

Vector  

Reference system identifier

4283

Temporal

Begin date

1950-01-01 

End date

now  

Resolution

Horizontal Accuracy

250m  

Quality

Conceptual Consistency

Only landsystem features are completed. 

Missing Data

The layer, as described, is complete and covers all of Victoria. The layer, as described, is complete and covers all of Victoria. 

Positional Accuracy

Precision: 100 m to 1 km. Note: land system boundaries are, in reality, zones of relatively rapid change in relevant land characteristics. Consequently, there is no valid measurement of 'accuracy'. Determination: Estimate 

Lineage

Statement

Dataset Source: Data Set Sources: Drawn from various Soil Conservation Authority, Department of Conservation, Forests and Land, Department of Conservation and Environment, Department of Conservation and Natural Resources, Department of Agriculture, and CSIRO publications -- see supporting documentation for details. Dataset Originality: Primary 

Attributes

Column Name	Obligation	Unique	Data Type	Data Length	Data Precision	Data Scale	Reference Table Owner	Reference Table Name	Reference Table Code Column Name	Short Column Name	Definition
LITHAGE_DESC	O	N	VARCHAR2	50						LITHA_DESC
COMPACT_CLASS	O	N	VARCHAR2	2						COMP_CLASS
MASS_EVIDENCE	O	N	VARCHAR2	200						MASS_EVID
AREASQM	O	N	NUMBER	22	38	3				AREASQM
PERFAG_POTENTIAL	O	N	VARCHAR2	8						PERFAG_POT
LS_RELIABIL	O	N	VARCHAR2	1						LSRELIAB
PERF_AGG	O	N	NUMBER	22	5	0				PERF_AGG
SOIL_DESC	O	N	VARCHAR2	100						SOIL_DESC
COMPACT_SUSCEPT	O	N	VARCHAR2	8						COMP_SUSC
LEACH_SOILPH	O	N	VARCHAR2	10						LEACH_PH
VEGETATION	O	N	VARCHAR2	40						VEGETATION
HECTARES	O	N	NUMBER	22	38	3				HECTARES
SALT	O	N	NUMBER	22	5	0				SALT
WINDER_S_TEXTURE	O	N	VARCHAR2	8						WIND_STEXT
MASS_MOV	O	N	NUMBER	22	5	0				MASS_MOV
CLIMATE	O	N	VARCHAR2	2						CLIMATE
LEACH_SUSCEPT	O	N	VARCHAR2	8						LEACH_SUSC
LSYSCODE	O	N	VARCHAR2	19						LSYSCODE
COMPACT	O	N	NUMBER	22	5	0				COMPACT
GMU_DESC	O	N	VARCHAR2	50						GMU_DESC
LITHOLOGY	O	N	VARCHAR2	4						LITHOLOGY
SALT_SUSCEPT	O	N	VARCHAR2	8						SALT_SUSC
WINDER_SUSCEPT	O	N	VARCHAR2	8						WIND_SUSC
CLIMATE_DESC	O	N	VARCHAR2	30						CLIM_DESC
GMU	O	N	VARCHAR2	5						GMU
VERSION	O	N	NUMBER	22	5	0				VERSION
WATERLOG_SUSCEPT	O	N	VARCHAR2	8						WLOG_SUSC
COMPACT_B_FORCE	O	N	VARCHAR2	50						COMP_BFORC
EQUIV_LSCODE	O	N	VARCHAR2	200						EQUIVLSCOD
FEATURE	O	N	VARCHAR2	1						FEATURE
LANDFORM_DESC	O	N	VARCHAR2	50						LFORM_DESC
WIND_ER	O	N	NUMBER	22	5	0				WIND_ER
MASS_SUSCEPT	O	N	VARCHAR2	20						MASS_SUSC
WATER_LOG	O	N	NUMBER	22	5	0				WATER_LOG
LEACH	O	N	NUMBER	22	5	0				LEACH
FEATURE_DESC	O	N	VARCHAR2	12						FEAT_DESC
WATERER_S_DEPTH	O	N	VARCHAR2	5						WATER_SDEP
LITHOLOGY_DESC	O	N	VARCHAR2	50						LITHO_DESC
SUBSCRIPT	O	N	VARCHAR2	2						SUBSCRIPT
LANDFORM	O	N	VARCHAR2	4						LANDFORM
SHORT_LSYSCODE	O	N	VARCHAR2	16						S_LSYSCODE
WATERLOG_D_CLASS	O	N	VARCHAR2	250						WLOG_DCLAS
SALT_CONDITIONS	O	N	VARCHAR2	250						SALT_COND
WATERER_SUSCEPT	O	N	VARCHAR2	8						WATER_SUSC
WATER_ER	O	N	NUMBER	22	5	0				WATER_ER
LITHAGE	O	N	VARCHAR2	2						LITHAGE

About the Metadata Record

Metadata identifier

urn:uuid / 74130d00-be40-5993-9455-5c651ba5717f