Australian Vegetation Attribute Manual

National Vegetation Information System, Version 6.0
Executive Steering Committee for Australian Vegetation Information (ESCAVI)
Department of the Environment and Heritage, 2003
ISBN 0 642 54953 2

Appendix J: Worked Example

  • Here is an example of a vegetation description record altered to conform with version 6.0 of the Australian Vegetation Attributes.
  • The database keys are shown for illustrative purposes only. Their values should not be copied into the database.
  • The example uses a vegetation type with the SOURCE_CODE "51" supplied by the Queensland Herbarium to the NVIS (2000) database.
  • This type occurs in about 50 map units, of which 3 are shown, highlighted, below.
  • The example illustrates the resolution of mosaics into the preferred format. In this case, all of the relevant data was supplied in the field SOURCE_CODE, but in a sub-optimal format.
  • This has been split into the unique SOURCE_CODE_COMPONENT and the corresponding content in VEG_DESC_POSITION and VEG_DESC_PROPORTION.
  • The fields marked with asterisks will be deleted from the final NVIS database once the mosaics have been resolved into their component vegetation descriptions. These fields are described in Appendix I.
  • I.e. the mosaics are "resolved" when each SOURCE_CODE = Each SOURCE_CODE_COMPONENT.
MAP_UNIT TABLE              
MAP_UNIT_ID 19135 19136 21077 21078 21079 21086 21087
VEG_ID 27 161 161 533 688 161 533
DATA_SET_ID 54 54 54 54 54 54 54
MAPUNT_
IDENTIFIER
40519235 40519235 40520224 40520224 40520224 40520228 40520228
SPATIAL_MIX dominant mosaic dominant mosaic mosaic mosaic mosaic dominant mosaic dominant mosaic
NUMBER_OF_
VEG_
DESCRIPTIONS
2 2 3 3 3 2 2
VEG_DESC
_POSITION
1 2 1 2 3 1 2
VEG_DESC_
PROPORTION
70 30 50 40 10 70 30
SOURCE_CODE* 146/51:
70/30
146/51:
70/30
51/116/196:
50/40/10
51/116/196:
50/40/10
51/116/196:
50/40/10
51/116:
70/30
51/116:
70/30
SOURCE_
DESCRIPTION*
(see below) (see below) (see below) (see below) (see below) (see below) (see below)
SOURCE_CODE
_COMPONENT*
146 51 51 116 196 51 116
  See the following page for each SOURCE_
DESCRIPTION.
             
MAP_UNIT_ID SOURCE_DESCRIPTION          
19135 Astrebla spp wooded with Acacia spp, Eucalyptus spp and other tall shrubs, Tussock Grassland    
19136 Eucalyptus coolabah +/- Casuarina cristata +/- Alectryon oleifolius open-woodland    
21077 Eucalyptus coolabah +/- Casuarina cristata +/- Alectryon oleifolius open-woodland    
21078 Eucalyptus populnea, Casuarina cristata +/- Tall Shrubs woodland      
21079 Acacia cambagei +/- Casuarina cristata open-forest        
21086 Eucalyptus coolabah +/- Casuarina cristata +/- Alectryon oleifolius open-woodland    
21087 Eucalyptus populnea, Casuarina cristata +/- Tall Shrubs woodland      
  • The following table shows the description of source code 51 with the "+/-" terminology based on the attribute TAXON_DATA_ALWAYS_THERE.
  • The "+/-" terminology for GROWTH_FORM_ALWAYS_THERE has not been shown, since we anticipate that it would be used sparingly.
  • Where the mosaic is resolved, the VEG_DESCRIPTION AND MAP_UNIT tables become relatively simple and the number of records is dramatically reduced.
VEG_DESCRIPTION TABLE  
VEG_ID 161
SOURCE_CODE 51
LEVEL_OF_DETAIL level6_sub-association
NUMBER_OF_STRATA 4
L1_CLASS Tree
L2_STRUCTURAL_FORMATION Open woodland
L3_BROAD_FLORISTIC_FORMATION Eucalyptus open woodland
L4_SUB_FORMATION +Eucalyptus open woodland\Acacia tall sparse shrubland\Aristida open tussock grassland
L5_ASSOCIATION U+ ^Eucalyptus coolabah+/-Casuarina cristata+/-Flindersia maculosa\^tree\7\r;M +/-Alectryon oleifolius+/-^Acacia salicina+/-Acacia stenophylla\^shrub\4\r;G ^+/-Aristida ramosa+/-Astrebla squarrosa+/-Bothriochloa decipiens\^tussock grass,forb,sedge\2\i
L6_SUB_ASSOCIATION U1+ ^Eucalyptus coolabah+/-Casuarina cristata+/-Flindersia maculosa\^tree\7\r;M1 +/-Alectryon oleifolius+/-^Acacia salicina+/-Acacia stenophylla+/-Acacia victoriae subsp. victoriae+/-Eremophila bignoniiflora\^shrub\4\bi;M2 Eremophila longifolia+/-Muehlenbeckia florulenta\shrub\3\r;G1 +/-^Aristida ramosa+/-Astrebla squarrosa+/-Bothriochloa decipiens+/-Dichanthium sericeum+/-Enteropogon acicularis\^tussock grass,forb,sedge\2\i
SOURCE_DESCRIPTION Eucalyptus coolabah +/- Casuarina cristata +/- Alectryon oleifolius open-woodland
ENVIRONMENTAL_DESCRIPTION Plains, alluvials and floodplains on Cainozoic sediments.
STRATUM TABLE        
STRATUM_ID 365465 365466 365467 365468
VEG_ID 161 161 161 161
STRATUM_CODE U1 M1 G1 M2
SUB_STRATUM_RANK 1 1 1 2
NUMBER_OF_GROWTH_FORMS 1 1 3 1
NUMBER_OF_TAXA 3 5 5 2
COVER_TYPE 4C 4C 4C 4C
COVER_TYPE_DERIV_METHOD Unknown Unknown Unknown Unknown
COVER_MINIMUM_VALUE 5 0 15 1
COVER_MAXIMUM_VALUE 10 1 40 5
COVER_MEDIAN_VALUE -9999 -9999 -9999 -9999
COVER_MEAN_VALUE 7 0 25 3
COVER_CODE r bi i r
HEIGHT_TYPE NV NV NV NV
HEIGHT_TYPE_DERIV_METHOD Unknown Unknown Unknown Unknown
HEIGHT_MINIMUM_VALUE 9 2 0 1
HEIGHT_MAXIMUM_VALUE 15 6 1 2
HEIGHT_MEAN_VALUE 12 4 0.5 1.5
HEIGHT_MEDIAN_VALUE -9999 -9999 -9999 -9999
HEIGHT_CLASS 7 4 2 3
DOMINANT_STRATUM_FLAG Y  N
  • The following table provide the detailed components of vegetation SOURCE_CODE 51.
GROWTH_FORM TABLE            
GROWTH_FORM_ID 4547229 4547230 4547231 4547232 4547233 4547234
STRATUM_ID 365465 365466 365467 365467 365467 365468
GROWTH_FORM_RANK 1 1 1 2 3 1
GROWTH_FORM_CODE T S G F V S
COVER_TYPE Unknown Unknown Unknown Unknown Unknown Unknown
COVER_TYPE_DERIV_METHOD Unknown Unknown Unknown Unknown Unknown Unknown
COVER_MINIMUM_VALUE -9999 -9999 -9999 -9999 -9999 -9999
COVER_MAXIMUM_VALUE -9999 -9999 -9999 -9999 -9999 -9999
COVER_MEDIAN_VALUE -9999 -9999 -9999 -9999 -9999 -9999
COVER_MEAN_VALUE -9999 -9999 -9999 -9999 -9999 -9999
GR_FORM_DOMINANCE_QUALIFIER D D D SD SD D
GROWTH_FORM_FREQUENCY Unknown Unknown Unknown Unknown Unknown Unknown
GROWTH_FORM_ALWAYS_THERE            
GROWTH_FORM_SUMMARY_FLAG Y Y Y N N N
TAXON_DATA TABLE                
TAXON_DATA_ID 1238981 1238982 1238983 1238984 1238985 1238986 1238987 1238988
STRATUM_ID 365465 365465 365465 365466 365466 365466 365466 365466
TAXON_LISTS_ID 131472 121171 121739 123974 123131 123137 130703 121565
TAXON_DATA_RANK 1 2 3 1 2 3 4 5
TAXON_DATA_
DESCRIPTION
Eucalyptus coolabah Casuarina cristata Flindersia maculosa Alectryon oleifolius Acacia salicina Acacia stenophylla Acacia victoriae Eremophila bignoniiflora
TAXON_DATA_
SOURCE_CODE
               
COVER_TYPE Unknown Unknown Unknown Unknown Unknown Unknown Unknown Unknown
COVER_TYPE_
DERIV_METHOD
Unknown Unknown Unknown Unknown Unknown Unknown Unknown Unknown
COVER_MINIMUM
_VALUE
-9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999
COVER_MAXIMUM
_VALUE
-9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999
COVER_MEDIAN
_VALUE
-9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999
COVER_MEAN
_VALUE
-9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999
TAXON_DATA_
DOMINANCE_
QUALIFIER
D SD SD CD CD CD CD CD
TAXON_DATA_
FREQUENCY
A C O C C C C C
TAXON_DATA_
ALWAYS_THERE
Y N N N N N N N
TAXON_DATA_
SUMMARY_FLAG
Y N N N Y N N N
TAXON_DATA_ID 1238989 1238990 1238991 1238992 1238993 1238994 1238995  
STRATUM_ID 365467 365467 365467 365467 365467 365468 365468  
TAXON_LISTS_ID 130969 123207 132245 130986 130032 121569 132263  
TAXON_DATA_RANK 1 2 3 4 5 1 2  
TAXON_DATA_
DESCRIPTION
Aristida ramosa Astrebla squarrosa Bothriochloa decipiens Dichanthium sericeum Enteropogon acicularis Eremophila longifolia Muehlenbeckia florulenta  
TAXON_DATA_
SOURCE_CODE
               
COVER_TYPE Unknown Unknown Unknown Unknown Unknown Unknown Unknown  
COVER_TYPE_
DERIV_METHOD
Unknown Unknown Unknown Unknown Unknown Unknown Unknown  
COVER_MINIMUM
_VALUE
-9999 -9999 -9999 -9999 -9999 -9999 -9999  
COVER_MAXIMUM
_VALUE
-9999 -9999 -9999 -9999 -9999 -9999 -9999  
COVER_MEDIAN
_VALUE
-9999 -9999 -9999 -9999 -9999 -9999 -9999  
COVER_MEAN
_VALUE
-9999 -9999 -9999 -9999 -9999 -9999 -9999  
TAXON_DATA_
DOMINANCE_
QUALIFIER
CD CD CD CD CD D SD  
TAXON_DATA
_FREQUENCY
C C C C C A O  
TAXON_DATA
_ALWAYS_THERE
N N N N N Y N  
TAXON_DATA_
SUMMARY_FLAG
Y N N N N N N