Appendix 17 Data for Quadrat/site Group Classification Lyons et al (2004)



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Appendix 17 Data for Quadrat/site Group Classification Lyons et al (2004) A2 in the Lyons report has been changed to A1 here after the map provided on p 7 of this report. A- Avon Wheatbelt , M - Mallee, GS - Geraldton Sandplain , Y – Yalgoo, C – Coolgardie, ES – Esperance plains. IBRA sub-regions (From Environment Australia, 2000 in Lyons et al 2004)

Group

Number of quadrats

Mean and SD

% gypsum

Site description

Characteristic species

Mean ELCODE

Location

Comments

Woodlands and shrubs of lunettes, inter-wetlands flats and rises – predominantly inland saline systems





1.6

7

21.86

37.33



Darwinia sp. Karonie shrublands

Dunes of inland saline pans and playas




Alyxia buxifolia,

Darwinia sp. karonie

3.4

Inland

4A1


2M2

1GS3


2 out of 7 quadrats very high EC and gypsum content.Small heterogeneous groupof quadrats


1.8

39

3.59

13.68


Elevated chenopod shrublands on high EC sites. Eastern side of saline playas that have accumulated evaporates from lake bed.


38% taxa/quadrat introduced

Atriplex vesicaria,

A paludosa,

Podolepis tepperi,

Pogonolepis muelleriana,

Eucalyptus kondininensis (small no)

3.1

1A2

15A1


22M2

1C


9 quadrats out of 39 contained gypsum

% gypsum mean and SD low



Chenopod dominated berms, beaches, and gypsum flats of natural and degraded primary saline wetland





3

11

53.64

47.85


Range 11-97%

Low dunes, heaves and berms with high EC and pH.

1 disjunct quadrat in M2 on large lunette with high pH – no gypsum and fine textured soils




Chondropyxis halophila,

Rhodanthe heteranthera,

Asteridea athrixioides,

Atriplex halocarpa.

Northern quadrats on raised beds

92-97% gypsum-

Halosarcia sp. Lake Moore (Tecticornia loriae),

Chondropyxis halophila,

Frankenia conferta,

Triglochin lyonsii ms


2.7

9A1

1M2


1Y


9 quadrats out of 11 contained gypsum. Northern - species poor Tecticornia shrubs Characteristic species commonlyoccur on non gypsum soils

5

7

6.16

10.52


Species poor beaches of degraded saline wetlands high EC and low pH dominated by Melaleuca shrublands. Margins of degraded saline lakes at low elevations subject to inundation.


Melaleuca thyoides,

M. halmaturorum,

Tecticornia lylei

2.1

6A1

1M2


Only 7 quadrats. % gypsum mean and SD low

6

4


54.25

42.76


Gypseous berms of southern playas, high mean EC and presence of gypsum.


Species poor –

Tecticornia moniliformis,

Austrostipa juncifolia,

Triglochin nanum,

Maireana oppositifolia

Callitris glaucophylla shrubland on low non-gypseous sands within Lake King –

Tecticornia moniliformis,

Austrostipa juncifolia,


2.5

2M1

2M2




Small group species poor quadrats and shared Tecticornia moniliformis

Characteristic species commomly occur on non gypsum soils.



7

10

52.7

45.17


Gypsum flats subject to inundation. High EC and high mean substrate pH.


Species poor Tecticornia halocnemoides

1.9

6A1, 2M1, 2M2

Small group. 7 quadrats out of 10 contained gypsum. Species poor and Tecticornia halocnemoides commonly occurs on non gypsum soils


Species rich strands, berms and low sandy ridges of naturally saline and degraded sub-saline/saline wetlands





8.1

60

7.15

20.71


Sandy and gypseous beaches, berms and low flats of saline pans and playas. High mean EC and pH relative to group 8.2. Weeds – degraded areas

,


*Parapholis incurva,

*Sonchus oleraceus,

Triglochin mucronata,

Atriplex holocarpa,

Cotula cotuloides,

High INDVAL scores –



Tecticornia peltata,

Gunniopsis septifraga

Triglochin mucronata,

Gypseous beaches, berms in N study area –



Fitzwillia axilliflora,

Neosciadium glochidiatum

Frankenia conferta


2.2

1A2

38A1


9M2

5GS2


7GS3


Variable amount of gypsum (0-99%) with % gypsum mean and SD low

8.2

33

1.86

9.44


Sandy berms and low rises of saline pans and playas. Similar elevation to 8.1 show lower mean substrate EC, pH and clay content to 8.1. Double species richness to 8.1


Centrolepis humillima,

Angianthus micropodioides,

Centrolepis eremica,

Gnephosis tridens,

Atriplex hymenotheca.

Subset – Sarcocornia globosa,

Roycea pycnophylloides,

Tecticornia sp. Central wheatbelt,

Frankenia bracteata


2.4

22A1

8M2


2C

1Y


% gypsum mean and SD low. Threatened by increased flooding associated with dryland salinity

9.2

28

19.93

34.41


Gypseous beaches, berms of southern playas and pans and coastal salt lakes. High pH and EC mostly contain gypsum. Quadrats occur at margins (mean ELCODE 2.4)

Hydrocotyle medicaginoides, Brachyscome exilis,

Tecticornia syncarpa,

Isotoma scapigera,

Tecticornia uniflora,

Austrostipa juncifolia,

Goodenia salina,

Frankenia tetrapetala,

Haegiela tatei,

Vellea exigua


2.4

Southern and coastal

1A1


1A2

3M1


14M2

5GS3


2 ES1

2ES2


19 quadrats out of 28 occur in the study area – coastal areas not included in this project. Goodenia salina

Possible gypsophile.




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