Metadata Name Description
Resource Name: GSTAGE100
Title: Relative Forest Growth Stage Classification
Anzlic Id: ANZVI0803002055
Custodial Program: Forest, Fire and Regions
Custodian: Department of Environment, Land, Water & Planning
Abstract: This layer contains the relative forest growth stage classes. The classification is based on Eucalypt growth stages identified by Max Jacobs (Growth habits of the eucalypts, 1955) and described in terms of the relative contribution of irregular to regular to regrowth forms to the total crown cover. The data has been collected to SFRI standards for the old growth forest mapping program.
Search Words: FORESTS
Nominal Input Scale: 1:25,000
Currency Date: 30 December 2007
Dataset Status: Completed
Progress: Complete
Access Constraint: Creative Commons Attribution 4.0 International licence, Copyright and Attribution, Terms of Use - http://creativecommons.org/licenses/by/4.0/
Not Documented
Not Documented
Data Existence:
Metadata Name Description
Resource Name: GSTAGE100
Title: Relative Forest Growth Stage Classification
Anzlic Id: ANZVI0803002055
Custodian: Department of Environment, Land, Water & Planning
Owner: Department of Environment, Land, Water & Planning
Jurisdiction: Victoria
Abstract: This layer contains the relative forest growth stage classes. The classification is based on Eucalypt growth stages identified by Max Jacobs (Growth habits of the eucalypts, 1955) and described in terms of the relative contribution of irregular to regular to regrowth forms to the total crown cover. The data has been collected to SFRI standards for the old growth forest mapping program.
Search Words: FORESTS
Purpose: This layer delineates one of the core forest resource attributes at 1:100,000 required for the delineation of old-growth forest. The layer is vital to the old-growth forest analysis process that draws on forest resource and disturbance themes to stratify the forest in a repeatable and quantifiable way to determine areas of forest that meet the current definition of old-growth forest. The layer should be used in conjunction with the EVC100 layer to take into account those EVCs that exhibit non - Jacobsian growth habits. That is, some EVCs will never exhibit late mature or senescing growth stages and the mature stage will be the oldest form.
Geographic Extent Polygon:
Geographic Bounding Box:
-34
141
 
150
-39
Beginning Date: 01JAN1992
Ending Date: Current
Maintainence and Update Frequency: Not Planned
Stored Data Format: DIGITAL Arc/Info Revision 7 Librarian layer
Available Format(s) Types: DIGITAL - All major formats available
Lineage: Primary
Positional Accuracy: Precision: 10m to 100m Determination: Forest growth stages are registered to 1:25,000 and 1:100,000 base maps from aerial photography ranging in contact scales from 1:20,000 to 1:40,000. Positional accuracy is based on drafting pen thickness, base map accuracy and the nature of the boundaries mapped. Map errors of 0.5 to 3mm are reasonable (ie 12.5m to 300m).
Atribute Accuracy: No attribute accuracy assessment has been undertaken, however based on attribute checking procedures: 1. Polygons GT 1ha: an error of 1 in 50 (approximately 98% accuracy) 2. Polygons LT 1ha: an error of 1 in 20 (approximately 95% accuracy)
Logical Consistency: The growthstage code is made up of three components, a senescent growth form, a mature growth form and a regrowth form. The growthstage code is determined by an estimate of the relative contribution made to the crown cover by these three growth forms. Each growth form is given a relative dominance value from the following table: d Crowns occupy greater than or equal to 50% of the total eucalypt crown cover. g Crowns occupy between 30% - 49% of the total eucalypt crown cover. p Crowns occupy between 10% - 29% of the total eucalypt crown cover. t Crowns occupy between 1% - 9% of the total eucalypt crown cover. n Crowns occupy less than 1% of the total eucalypt crown cover. This approach provides a very large number of possible combinations of which only a subset are logically consistent. These have all been verified. For a complete description of growth stage and maplabels refer to Stand Class Definitions and Polygon Labelling Guidelines for the State Forest Resource Inventory, Peter Elliot Department of Conservation and Natural Resources 1996.
Data Source: State Forest Resource Inventory (SFRI) project (North East), Gippsland, Midlands-Otways, Portland Wimmera - 1:20,000 photography. Bendigo Forest Mapping project (Goldfields) - 1:25,000 and 1:20,000 photography. Central Highlands Old Growth Forest Study - 1:25,000 and 1:40,000 photography. East Gippsland Old Growth Forest Study - 1:40,000 photography.
Completeness: The dataset is complete for the extent of the East Gippsland, North East, Central Highlands and Goldfields Old Growth Forest Study areas.
Contact Organisation: Department of Environment, Land, Water & Planning
Contact Position: Dataset Data Manager
Address: PO Box 500
East Melbourne   Vic 3002
Australia
Telephone: (03) 9637 8393
Facsimile: (03) 9637 8312
Email Address: biodiversity.info@dse.vic.gov.au
Metadata Date: 2017-03-08 00:00:00.0
Additional Metadata: Not Documented
"A study of the Old-Growth Forests of East Gippsland", Woodgate et.al. 1994 "Study of Old Growth Forest in Victorias Central Highlands", Forests Service Technical Report 96-3. "Stand Class Definitions and Polygon Labelling Guidelines for the State Forest Resource Inventory". Peter Elliot, Department of Conservation and Natural Resources 1996 "Study of Old-growth Forest in Victoria's North-East", forest Service technical report 98-1. "Old-growth Forest study of Gippsland Victora - Modelling of Old-growth Forrest Status". Study Report. Stephen Farrel & Milos Pelikan (Unpublished Report), 1999. "Old-growth Forrest Study of South - Western Victoria: Portland Wimmera and Otways- Midlands - Modelling of Old-growth Forest status", Study Report. Stephen Farrell and Milos Pelikan (Unpublished Report), 1999.
Resource Name: GSTAGE100
Title: Relative Forest Growth Stage Classification
Object Name: FORESTS.GSTAGE100
Column Name Column Name 10 Obligation Unique Data Type Reference Table Comments
AREASQM AREASQM O N NUMBER(18,2)
CROWNCOV CROWNCOV O N NUMBER(10)
FT FT O N NUMBER(10)
GROWTHSTAGE O N VARCHAR2(4)
GSTAGE100_SRC O N NUMBER(10)
HECTARES HECTARES O N NUMBER(18,2)
MAPLABEL MAPLABEL O N VARCHAR2(15)
VERSION VERSION O N NUMBER(10)