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Identification

Field Value

Title

Composite vegetation map for the Border Rivers-Gwydir Catchment (2009) VIS_ID 3801

Alternative title(s)

brg_comp09_VIS_3801

Abstract

This vegetation map for the Border Rivers-Gwydir Catchment Management Authority (CMA) area, Northern NSW, was upgraded in 2009 by EcoLogical Aust. This included adding new spatial data targeting unmapped ‘gaps’, by removing areas of non-woody vegetation previously mapped as woody, and by further refining the regional vegetation community (RVC) classification. The labelling of ‘undetermined’ types is made more consistent, and a final spatial verification of the distribution of each RVC is undertaken.

Integration of the four new layers adds about 115,000 ha of ‘woody’ RVCs and 200,000 ha of either non-woody RVCs or non-vegetation to the vegetation map, while elimination of ‘non-woody’ areas of woody RVCs converts some 145,000 ha to either non-woody vegetation RVCs or non-vegetation. The net result of the review is a reduction in the extent of mapped woody RVCs by about 30,000 ha, an increase in mapped non-woody RVCs by 80,000 ha, and an increase in mapped non-vegetation (mainly cropping) by about 120,000 ha.

The consistency of labelling of undetermined types in the layer is improved by replacing previous labels –'undetermined veg’, ‘undetermined non-veg’ and ‘undetermined’ with more definitive categories – ‘undetermined woody veg’, ‘undetermined non-woody veg’ and ‘undetermined non veg’.

A total of about 1,053,000 ha of the map incurred a change of RVC as a result of RVC review, mainly as a result of review of grassland mapping, specifically RVCs 26 – 28, and grassy box types, including RVC 19 (White Cypress Pine -

Silver-leaved Ironbark grassy woodland, Nandewar) and RVC 44 (White Box - pine - Silver-leaved Ironbark shrubby open forests, Brigalow Belt South and Nandewar).

While data gaps remain in the vegetation layer, particularly in the north-east of the catchment, their extent has diminished as a result of integration of new data, so that the overall mapped coverage of RVCs has increased in the BRG, and the spatial distribution of mapped RVCs has also improved. This provides more certainty in spatial outputs arising from interrogation of spatial vegetation data, for example ‘high conservation value’ surfaces. However, the inherent problem of quality of baseline composite API data upon which the RVC surface is based continues to be recognised, and opportunities to continue to improve the vegetation map through further gap filling and field verification should be taken.

Note this dataset supersedes the BRG component of the existing vegetation dataset called "Namoi and Border Rivers Gwydir Catchments composite vegetation map (2008) - VIS_ID 3842" dataset.

Eco Logical Australia (2009). Upgrade of Vegetation Mapping in the Border Rivers-Gwydir Catchment. A Product for the High Conservation Value Project. EcoLogical Australia 11/10/2009 Project# 09COFGIS-0002

Resource locator

Data Quality Statement

Name: Data Quality Statement

Protocol: WWW:DOWNLOAD-1.0-http--download

Description:

DQS - Composite vegetation map for the Border Rivers-Gwydir Catchment (2009) VIS_ID 3801

Function: download

Vegetation brg comp09 VIS 3801

Name: Vegetation brg comp09 VIS 3801

Protocol: WWW:DOWNLOAD-1.0-http--download

Description:

Download Shapefile

Function: download

Unique resource identifier

Code

1e2643ef-a9ec-405b-b472-8d4743999a4c

Presentation form

Map digital

Edition

Not known

Dataset language

English

Metadata standard

Name

ISO 19115

Edition

2016

Dataset URI

https://datasets.seed.nsw.gov.au/dataset/1e2643ef-a9ec-405b-b472-8d4743999a4c

Purpose

Vegetation mapping

Status

Under development

Spatial representation

Type

vector

Spatial reference system

Code identifying the spatial reference system

4283

Equivalent scale

1:None

Additional information source

Eco Logical Australia (2009). Upgrade of Vegetation Mapping in the Border Rivers-Gwydir Catchment. A Product for the High Conservation Value Project. EcoLogical Australia 11/10/2009 Project# 09COFGIS-0002

Classification of spatial data and services

Field Value

Topic category

Keywords

Field Value

Keyword set

keyword value

VEGETATION

Originating controlled vocabulary

Title

ANZLIC Search Words

Reference date

2008-05-16

Geographic location

West bounding longitude

148.365

East bounding longitude

152.119

North bounding latitude

-30.837

South bounding latitude

-28.537

Vertical extent information

Minimum value

-100

Maximum value

2228

Coordinate reference system

Authority code

urn:ogc:def:cs:EPSG::

Code identifying the coordinate reference system

5711

Temporal extent

Begin position

2009-11-10

End position

N/A

Dataset reference date

Resource maintenance

Maintenance and update frequency

Unknown

Contact info

Contact position

Data Broker

Organisation name

NSW Department of Climate Change, Energy, the Environment and Water

Telephone number

131555

Email address

data.broker@environment.nsw.gov.au

Web address

https://www.nsw.gov.au/departments-and-agencies/dcceew

Responsible party role

pointOfContact

Quality and validity

Field Value

Lineage

no lineage information supplied

Constraints related to access and use

Field Value

Limitations on public access

Data Quality

Field Value

Scope

dataset

DQ Completeness Commission

Effective date

2001-01-01

DQ Completeness Omission

Effective date

2001-01-01

Responsible organisations

Field Value

Responsible party

Contact position

Data Broker

Organisation name

NSW Department of Climate Change, Energy, the Environment and Water

Telephone number

131555

Email address

data.broker@environment.nsw.gov.au

Web address

https://www.nsw.gov.au/departments-and-agencies/dcceew

Responsible party role

pointOfContact

Metadata on metadata

Field Value

Metadata point of contact

Contact position

Data Broker

Organisation name

NSW Department of Climate Change, Energy, the Environment and Water

Telephone number

131555

Email address

data.broker@environment.nsw.gov.au

Web address

https://www.nsw.gov.au/departments-and-agencies/dcceew

Responsible party role

pointOfContact

Metadata date

2024-08-28T02:01:22.704331

Metadata language