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Table 28: Key to Major Vegetation Subgroups in MVG28: Sea and estuaries (NVIS Version 4.1)



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Table 28: Key to Major Vegetation Subgroups in MVG28: Sea and estuaries (NVIS Version 4.1)


Key No.

Criteria

MVS# or Next Key No.

Broader groupings or MVS Name

Comments

0

  • Areas of ocean, sea and estuaries

MVS46

Sea, estuaries (includes seagrass)

No need, at this stage, to key this beyond MVS46.



Table 29: Key to Major Vegetation Subgroups in MVG29: Regrowth, modified native vegetation (NVIS Version 4.1)


Key No.

Criteria

MVS# or Next Key No.

Broader groupings or MVS Name

Comments

0

  • Regrowth or modified vegetation dominated by trees




MVS90

1


Regrowth or modified forests and woodlands




1

  • Regrowth or modified vegetation dominated by shrubs or forbs




  • Regrowth or modified vegetation dominated by grasses or grass-like growth forms (e.g. sedges, rushes, etc.)

2

MVS92

Regrowth or modified graminoids





2

  • Regrowth or modified vegetation dominated by chenopod (saltbush or samphire) shrubs and/or forbs




  • Regrowth or modified vegetation dominated by shrubs

MVS93

MVS91


Regrowth or modified chenopod shrublands, samphire or forblands
Regrowth or modified shrublands






Table 30: Key to Major Vegetation Subgroups in MVG30: Unclassified Forest (NVIS Version 4.1)


Key No.

Criteria

MVS# or Next Key No.

Broader groupings or MVS Name

Comments

0

  • Dominant trees with crown cover > 20% (i.e. FPC > 30%); plant community details not otherwise specified or likely to be erroneous; unlikely to be Indo-Malayan species.




MVS96

Unclassified forest

No need, at this stage, to key this beyond MVG30.


Table 31: Key to Major Vegetation Subgroups in MVG31: Other Open Woodlands (NVIS Version 4.1)


Key No.

Criteria

MVS# or Next Key No.

Broader groupings or MVS Name

Comments

0

  • Upper [and/or mid] stratum dominated by the genus Casuarina or Allocasuarina




  • Upper [and/or mid] stratum dominated by other genera

1

2








1

  • Overstorey dominated by Allocasuarina decaisneana. Understorey characterised by hummock grasses with scattered shrubs. Occurs in sandy deserts.




  • Overstorey comprising species other than Allocasuarina decaisneana.




MVS72

MVS26



Desert oak woodlands

Calcareous sandplain woodland


Also represented in MVG 8



2

  • Upper [and/or mid] stratum dominated by the genus Melaleuca




  • Upper [and/or mid] stratum dominated by other genera

MVS15

3


Tropical sandplain woodlands

Also represented within MVG 9

3

  • Upper [and/or mid] stratum dominated by the genus Callitris




  • Upper [and/or mid] stratum dominated by other genera

MVS12

MVS79


Callitris forests and woodlands

Other open woodlands



Also represented within MVG 7

Heterogeneous group requiring rationalisation.




Table 32: Key to Major Vegetation Subgroups in MVG32: Open Mallee Woodlands and Shrublands (NVIS Version 4.1)


Key No.

Criteria

MVS# or Next Key No.

Broader groupings or MVS Name

Comments

0

  • Dominant or subordinate species of any stratum includes at least one species endemic to Western Australia (e.g. tree stratum includes Eucalyptus eremophila, E. moderata, E. incrassata, E. foecunda, E. redunca or E. uncinata). Distributed west of the Nullarbor Plain in Western Australia




  • No Western Australian endemics recorded as dominants or subordinates of any stratum.




MVS ##
1

Western mallee

WA (also represented in MVG 14)

1

  • Understorey dominated by shrubs other than those in family Chenopodiaceae (Maireana, Rhagodia, Chenopodium, Atriplex, Sclerolaena), typically >1 m tall at maturity. Triodia, if present, not dominant.




  • Understorey dominated by grasses and/or shrubs or forbs in the family Chenopodiaceae (Maireana, Rhagodia, Chenopodium, Atriplex, Sclerolaena) OR dominated by multiple growth forms including non-chenopod shrubs and Triodia.



2

3








2

  • Callitris verrucosa present in any stratum and/or understorey shrub stratum including sclerophyll (heath) genera Aotus, Baeckea, Brachyloma, Hibbertia, Leptospermum or Phebalium, at maturity typically attaining crown cover > 50% (i.e. FPC > 30%; NVIS cover_codes=d, c). Distributed on white sands in the southern mallee regions of Victoria and SA where mean annual rainfall exceeds 300 mm.




  • Callitris verrocosa absent from all strata and understorey shrub stratum including non-sclerophyll genera such as Alectryon, Dodonaea, Eremophila, Myoporum or Senna, often with Acacia and Grevillea, at maturity typically with crown cover <20% (FPC<10%; NVIS cover_code=r), though sometimes denser. Occurs most commonly in swales and flat expanses of red sandplains (more rarely on white sands) in northwest Victoria, SA and NSW where mean annual rainfall is less than 350 mm.




MVS29

MVS55


Heathy Mallee

Shrubby Mallee



SA, VIC (also represented in MVG 14)

NSW, SA, VIC (also represented in MVG 14)



3

  • Understorey dominated by chenopod shrubs (genera Maireana, Rhagodia, Enchylaena, Chenopodium, Atriplex, Sclerolaena) or tussock grasses. Hummock grasses (Triodia spp.) and Callitris verrucosa absent. Occurs on red heavy-textured sands over a shallowcalcrete subsoil in NSW, Vic and SA.




  • Understorey dominated by hummock grasses (Triodia spp.), may include scattered Callitris and mostly shrubs. Chenopods may be present but not dominant. Occurs on deep dune summits and slopes on red or white sandplains in NSW, Victoria and SA.

MVS61

MVS27


Chenopod Mallee

Triodia Mallee



NSW, SA, VIC (also represented in MVG 14)

NSW, SA, VIC (also represented in MVG 14)





Table 33: Key to Major Vegetation Subgroups in MVG99: Unknown/no data (NVIS Version 4.1)


Key No.

Criteria

MVS# or Next Key No.

Broader groupings or MVS Name

Comments

0

  • Vegetation description has no further information and is hence a member of the Major Vegetation Group 99

MVS99

Unknown/no data

No need, at this stage, to key this beyond MVS99.






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