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NL Table 3-1: Vegetation communities previously mapped in the Mt Mulgine Project Area Vegetation Unit Code Description Thickets and Scrubs T1
Thicket to Dense Thicket dominated by Acacia ramulosa var. ramulosa over a Low Scrub of mixed species over Herbs on red loamy soils with some gravel. T2
Thicket to Scrub dominated by Acacia acuminata over Dwarf Scrub or Herbs on red loamy-clay. T4 Thicket to Scrub dominated by Melaleuca hamata, Allocasuarina acutivalvis ?subsp. prinsepiana and Acacia species on red loamy-clay on rocky ground. Woodlands W1
Open Low Woodland of mixed Eucalyptus species over Thicket to Scrub of Acacia species over a Dwarf Scrub of mixed species over Herbs on red loamy soils with gravel. W2
Open Low Woodland of Eucalyptus salmonophloia and Eucalyptus loxophleba subsp. supralaevis over Open Scrub on red silty clay with quartz pebbles. W4 Low Woodland of Eucalyptus sheathiana and Eucalyptus ?striaticalyx over Low Scrub of mixed shrubs over Open Herbs on red loamy-clay on rocky ground. W9 Low Woodland to Scrub dominated by Allocasuarina acutivalvis ?subsp. prinsepiana on red-brown soils on rocky ground. Source: Woodman (2003) 3.1.3 Conservation Significant Vegetation Communities Four PECs and one TEC listed under the WC Act were identified as occurring within 30 km of the Project area: •
formation (BIF))’ (Priority 1 PEC – WC Act); •
‘Minjar and Chulaar Hills vegetation complexes (BIF) (Priority 1 PEC – WC Act); •
‘Mount Gibson Range vegetation complexes (BIF)’ (Priority 1 PEC – WC Act); •
‘Ninghan calcrete groundwater assemblage type on Moore palaeodrainage on Ninghan Station’ (Priority 1 PEC – WC Act); and •
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NL 3.1.4 Introduced Flora Two invasive plant taxa listed as MNES were identified by the PMST as likely to occur in the vicinity of the Project area; Cenchrus ciliaris (Buffel-grass) and Eichhornia crassipes (Water hyacinth).
F IELD S URVEY 3.2.1 Vegetation Communities The survey recorded 117 flora taxa belonging to 79 genera. Prior to analyses, all annual species were removed as they were mostly of low quality where applied field names were likely forming aggregate. Therefore, analyses were reliant on shrub / perennial vegetation considered as dominant and were persistent within the landscape. The analyses were thus conducted on a total of 59 species belonging to 35 genera. Following pre- processing of the data an additional two releves considered outliers following nearest neighbour method were removed (Figure 3-2).
Figure 3-3 illustrates the nine top performing classification methods identified by OptimClass 1. L EVEL
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The classification technique involving No transformation (Norm), Bray-Curtis distance and Flexible beta (-0.25) clustering was used for subsequent analyses. Further the results suggest the taxa can be assigned to ten communities nested into five alliances Figure 3-4 ..
Curtis Distance and Flexible Beta (-0.25) Clustering Algorithm
The program for vegetation classification ‘JUICE’ was used to produce final classifications and community descriptions (fingerprint). Fingerprints describe the floristic communities including diagnostic (using Fishers Phi co-efficient), constant (occurring in more than 60% of the quadrats within the community) and dominant (with a cover >25% within the quadrat) species. CCA (
Ter Braak, 1986 ) were then undertaken to assist in the ecological interpretation of the floristic communities. This analysis utilises the phytosociological and environmental data. Results of the analyses are 0 1 2 3 4 5 6 7 8 9 0 10 20 30 40 Fait
h fu l s p ecie
s Cluster
LgR.ManFB PaR.ManFB NormBcFB LgBcSINGLE LgR.ManUPGMA NormR.ManUPGMA FloatingEucWard PsEucWard PsJaccardFB
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NL shown in Figure 3-5. Communities of the MMP are situated within sand to sandy loam area of the soil texture gradient adopted from Minasny and McBratney (2001) and Holbeche (2008) (Figure 3-6).
Figure 3-5: CCA of the Project Area using Environmental and Phytosociological Data
Figure 3-6: Position of Communities along Soil Texture Gradient
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NL Sand, clay and silt box plots of the floristic communities indicated vegetation communities 1 to 5 and 8 had very similar soil properties. However, the properties of soil from Communities 7, 9 and 10 differed to the other communities (Figure 3-7). The vertical grey line indicates community mean and the shaded area is +/- 1 standard deviation.
Analyses of coarse fragments, bulk density, effective cation exchange capacity and total nitrogen properties indicated most communities had similar soil properties. However, these soil properties were notably different in Community 9. Vegetation communities 3 and 7 also had higher bulk density and coarse fragments respectively. Coarse fragments were also much higher in Community 10 than those of other communities. Results of the box plots are shown in Figure 3-8. L EVEL
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of Floristic Communities
The final alliances and vegetation communities from the analyses are described in Table 3-2 to
Table 3-6 . Vegetation communities of the Project area are shown in Figure 3-9 .
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NL Table 3-2: Vegetation communities of Alliance A in the Mt Mulgine Project Area Alliance A Description Eucalyptus sp. A 1 , open woodland on mixed Acacia shrubland, dominated by Austrostipa scabra and Ptilotus obovatus Diagnostic species: Acacia andrewsii, Acacia ramulosa, Acacia tetragonophylla, Austrostipa elegantissima, Austrostipa scabra, Austrostipa variabilis, Cuscuta agg., Enchylaena tomentosa, Eremophila clarkei, Eriachne pulchella, Eucalyptus sp. A, Exocarpos aphyllus, Lobelia rhytidosperma, Maireana georgei, Ptilotus obovatus, Scaevola spinescens, Sclerolaena diacantha, Senna artemisioides subsp. filifolia, Senna artemisioides subsp. petiolaris, Sida calyxhymenia, Sida ectogama, Solanum agg. Constant species: Austrostipa variabilis, Ptilotus obovatus, Solanum agg. Dominant species: Austrostipa scabra, Ptilotus obovatus. Habitat: Sandy loam soils Communities Community 1 Eucalyptus sp. A, open woodland on mixed Acacia andrewsii, Enchylaena tomentosa, Maireana georgei & Ptilotus obovatus shrubland over Austrostipa variabilis grassland. Community 2 Ptilotus obovatus & Scaevola spinescens shrubland over Austrostipa scabra grassland. Photo plate:
1 Formal identification to be confirmed L EVEL
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NL Table 3-3: Vegetation communities of Alliance B in the Mt Mulgine Project Area Alliance B Description Eucalyptus sp. A woodland over mixed Acacia spp. including dominating A. ramulosa and Eremophila shrublands with Eremophila clarkei, E. decipiens and E. oldfieldii Diagnostic species: Acacia andrewsii, Acacia exocarpoides, Acacia ramulosa, Acacia tetragonophylla, Arthropodium dyeri, Austrostipa elegantissima, Dianella revoluta, Eremophila clarkei, Eremophila decipiens subsp. decipiens, Eremophila oldfieldii, Eucalyptus sp. 1 JT ID, Exocarpos aphyllus, Grevillea didymobotrya subsp. didymobotrya, Jacksonia sp., Maireana georgei, Maireana trichoptera, Ptilotus obovatus, Ptilotus helipteroides, Ptilotus divaricatus, Rhagodia drummondii, Sclerolaena diacantha, Senna artemisioides subsp. filifolia, Senna artemisioides subsp. petiolaris, Sida calyxhymenia, Solanum agg., Stenopetalum sp. Constant species: Acacia ramulosa, Acacia tetragonophylla, Austrostipa elegantissima, Eucalyptus sp. A, Maireana georgei, Maireana trichoptera, Ptilotus obovatus, Rhagodia drummondii Dominant species: Acacia ramulosa, Eucalyptus sp. A Habitat: Sandy loam soils (See Fig. 4), small course fragments, high bulk density & total nitrogen higher than average.
Alliance B does not split into separate community at lower hierarchical levels, and is also named Community 3.
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NL Table 3-4: Vegetation communities of Alliance C in the Mt Mulgine Project Area Alliance C Description Acacia shrublands dominated by A. assimilis and A. ramulosa, interspersed with combination of myrtaceous shrubs including Melaleuca eleuterostachya and M. stereophloia, and Allocasuarina dielsiana. Diagnostic species: Acacia acuminata, Acacia assimilis, Acacia exocarpoides, Acacia ramulosa, Acacia tetragonophylla, Allocasuarina dielsiana, Austrostipa scabra, Austrostipa variabilis, Borya sphaerocephala, Cuscuta agg , Dianella revoluta, Dodonaea inaequifolia, Eremophila alternifolia, Eremophila georgei, Eriachne benthamii, Lobelia rhytidosperma, Melaleuca eleuterostachya, Melaleuca stereophloia, Ptilotus obovatus, Ptilotus helipteroides, Sida ectogama, Solanum agg. Constant species: Acacia ramulosa, Acacia tetragonophylla, Cuscuta agg. Dominant species: Acacia assimilis, Acacia ramulosa Habitat: Sandy loam soils occur across all communities with exception of Community 7 (C7). Communities 4, 5 & 6 contain small (below average) coarse fragments whilst C7 contains larger fragments.
Mixed shrubland of Pimelea avonensis, Hybanthus floribundus subsp. curvifolius, Acacia acuminata, Eremophila granitica and Cryptandra imbricata. Acacia acuminata and Allocasuarina not forming dominant (>25%) shrub layer. Community 6 Mixed shrublands with Eremophila decipiens subsp. decipiens, Ptilotus helipteroides and Senna artemisioides subsp. filifolia over Eriachne pulchella grassland. Acacia spp. not forming dominant shrubland strata. Community 7 Allocasuarina dielsiana and Acacia acuminata open woodland over Melaleuca eleuterostachya, Eremophila oldfieldii and Thyridolepis multiculmis shrubland. L EVEL
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NL Photo plate:
A: Community 4, B: Community 5, C: Community 6, D: Community 7
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NL Table 3-5: Vegetation communities of Alliance D in the Mt Mulgine Project Area Alliance D Description Acacia acuminata, Allocasuarina dielsiana and Melaleuca stereophloia dominated woodlands over mixed Acacia spp. Diagnostic species: Acacia acuminata, Acacia tetragonophylla, Allocasuarina acutivalvis subsp. prinsepiana, Allocasuarina dielsiana, Arthropodium dyeri, Austrostipa elegantissima, Austrostipa scabra, Austrostipa variabilis, Bulb sp., Cryptandra imbricata, Cryptandra sp., Cuscuta agg , Dianella revoluta, Dodonaea inaequifolia, Eremophila granitica, Eremophila alternifolia, Eremophila clarkei, Eremophila georgei, Eremophila oldfieldii, Eriachne pulchella, Grevillea didymobotrya subsp. didymobotrya, Hybanthus floribundus subsp. curvifolius, Jacksonia sp., Melaleuca eleuterostachya, Melaleuca nematophylla, Melaleuca stereophloia, Pimelea avonensis, Ptilotus obovatus, Sida calyxhymenia, Solanum agg , Stenopetalum sp., Thyridolepis multiculmis Constant species: Acacia acuminata Dominant species: Acacia acuminata, Allocasuarina dielsiana, Melaleuca stereophloia Habitat: Flat, sandy loam soils. Communities Community 8 Alliance D does not split into separate community at lower hierarchical levels and is also named Community 8.
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NL Table 3-6: Vegetation communities of Alliance E in the Mt Mulgine Project Area Alliance E Description Acacia latior & Allocasuarina campestris dominated woodlands over Gastrolobium laytonii, Melaleuca nematophylla and M. scalena shrubs over Eriachne grasses. Diagnostic species: Acacia assimilis, Acacia latior, Allocasuarina campestris, Allocasuarina dielsiana, Arthropodium dyeri, Borya sphaerocephala, Calycopeplus paucifolius, Cryptandra sp., Cuscuta agg., Eriachne benthamii, Eriachne pulchella, Gastrolobium laytonii, Melaleuca nematophylla, Melaleuca scalena, Micromyrtus sp., Philotheca deserti, Thyridolepis multiculmis. Constant species: Acacia latior, Calycopeplus paucifolius, Philotheca deserti Dominant species: Acacia latior, Allocasuarina campestris Habitat: Sandy soils, with above average (%) exposed aggregate. Communities Community 9 Acacia latior dominated woodlands over Gastrolobium laytonii, Calycopeplus paucifolius and Philotheca deserti low open shrublands over Eriachne benthamii grass. Community 10 Allocasuarina campestris dominated woodlands over Micromyrtus sp. A, Cryptandra sp. and Calycopeplus paucifolius low open shrubland over Eriachne pulchella low open grassland. Photo plate:
A: Community 9, B: Community 10, C: Community 9 soil profile, D: Community 10 soil profile L EVEL
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NL 3.2.2 Vegetation Condition Vegetation in the Project area has been disturbed historically through mining and exploration activities. Previous workings and numerous access tracks are evident throughout the Project area. However, the vegetation has had time to recover and its condition was predominately ‘Very Good’. The exception to this was the vegetation of Mt Mulgine which was in ‘Good’ condition. Figure 3-10 illustrates vegetation condition of the Project area.
Kataloq: seven-day-comment-on-referrals seven-day-comment-on-referrals -> Vegetation, Flora and Wetland Survey at the Wonnerup South Mineral Sands Deposit seven-day-comment-on-referrals -> Flora Survey of Battler Tenements M77/166 & P77/3645 seven-day-comment-on-referrals -> 14 th August 2013 For Extension Hill Pty Ltd: Extension Hill Magnetite Project seven-day-comment-on-referrals -> Figure 19: Eucalyptus desmondensis modelling results seven-day-comment-on-referrals -> Health monitoring program seven-day-comment-on-referrals -> Fauna and Fauna Assemblages Survey of the Kundip and Trilogy Study Sites seven-day-comment-on-referrals -> User Community seven-day-comment-on-referrals -> User Community seven-day-comment-on-referrals -> Fqm nickel australia p ty ltd Yüklə 9,02 Mb. Dostları ilə paylaş:
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