Vicmap Vegetation - Tree Density Polygon 2001

dataset: TREE_DENSITY_2001
This datasset has been replaced by VMVEG_TREE_DENSITY (Anzlic Id ANZVI0803009330) A presence/absence tree cover dataset is derived from SPOT Panchromatic imagery (10m pixels) by a combination of digital classification and visual interpretation . The presence/absence dataset is then grouped into three density classes (Dense, Medium, Scattered) by neighbourhood and proximity cell based analysis. The raster dataset is converted to vector as a final step. The process of grouping tree cover into density classes simplifies the representation of trees and reduces the complexity of the vector dataset. It is a particularly neat way of representing scattered tree cover. The original, ungrouped raster dataset is maintained as a separate dataset. Classifying SPOT Panchromatic imagery for vegetation can be limiting as the panchromatic image only encompasses a small portion of the infrared part of the electromagnetic spectrum. However, the image sharpness and detail offered makes the trade off between spectral range and spatial resolution worth while for mapping tree cover at 1:25,000. Tree cover is defined as woody vegetation greater than 2 metres in height and with a crown cover (foliar density) greater than 10 percent.
 
Citation proposal Citation proposal
(2021)

Vicmap Vegetation - Tree Density Polygon 2001

Department of Transport and Planning
 

Description

Title
Vicmap Vegetation - Tree Density Polygon 2001 
Alternate title
TREE_DENSITY_2001 
Purpose
TREE_DENSITY is intended to show both the presence and density of tree cover at 1:25,000 scale. The potential uses are many, however, the initial purpose is to provide a detailed, comprehensive and consistent statewide dataset from which tree cover monitoring can be based. TREE_DENSITY provides the most detailed statewide picture of tree cover available to date and is an excellent source of data for any applications requiring the identification of small patches of remnant tree cover such as connectivity analyses and habitat modelling. The scattered density category provides a first in the representation of scattered woodlands and sparse tree cover. The dataset also lends itself well to map presentation and makes an excellent backdrop for other thematic information shown on maps. 
Status
Completed  
 
 

Contacts

Cited responsible party  

No information provided.

Cited responsible party  

No information provided.

Cited responsible party  

No information provided.
 
 

Keywords

Topic category
  • Environment
  • Biota
  • Imagery base maps earth cover
  • Farming
 
 

Constraints

Classification
Unclassified  
 
 

Extents

 
 

Acquisition Info

RFQ Number
 
 

Metadata Constraints

Classification
Unclassified  
 
 

    Overviews

Graphic Overview of Data Footprint

  Provided by

  Share on social sites

         

  Views Views

Read here the full details and access to the data. Read here the full details and access to the data.

  Associated resources

Not available