Opr rail Development Public Environmental Review
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- Code Description Yp6
- Code Description Mh17
- Code Description Mc6 Mixed Acacia aneura, Acacia ramulosa var. ramulosa and Acacia tetragonophylla low woodland. Mc7
- Table 5‐6 Vegetation condition assessment Vegetation Condition Level Freehold Land Area (%) Pastoral Land Area (%)
- 5.2.1.5 Vegetation of Conservation Significance
- Table 5‐7 PEC recorded within the Study Area PEC Community Description
- Significant Vegetation Associations
- Table 5‐8 Beard vegetation associations within the Study Area with
Gf1 Isolated Hakea preissii tall shrubs, over Tecticornia indica subsp. bidens and Atriplex amnicola (+/- Tecticornia lepidosperma, Tecticornia pergranulata subsp. pergranulata and Frankenia setosa) low Chenopod shrubland, over *Avena fatua and Eragrostis dielsii sparse tussock grassland. Gf2 Eucalyptus loxophleba subsp. loxophleba open low woodland, over Acacia acuminata and Acacia burkittii sparse tall shrubland, over Acacia tetragonophylla and Enchylaena tomentosa sparse mid shrubland, over Acacia andrewsii and Ptilotus obovatus sparse low shrubland. Gc1 Eucalyptus camaldulensis var. obtusa mid to low woodland (+/- Casuarina obesa and Melaleuca rhaphiophylla) isolated to open tall shrubland, over Atriplex amnicola and Chenopodium gaudichaudianum sparse low shrubland, over Cyperus gymnocaulos sparse sedgeland and *Avena fatua and *Bromus diandrus tussock grassland. Gc2 Grevillea spp., Acacia spp. and Melaleuca spp. tall shrubland. Yh1 Allocasuarina dielsiana sparse mid woodland, over Acacia quadrimarginea and Acacia ramulosa var. Linophylla sparse tall shrubland, over Ptilotus obovatus sparse low shrubland. Yh2 Acacia ramulosa var. linophylla sparse tall shrubland, over isolated Thryptomene decussata, Eremophila latrobei subsp. latrobei and Sida ectogama mid shrubs, over Eriachne pulchella subsp. pulchella and Aristida contorta sparse tussock grassland. Yh3 Isolated Acacia aneura, Acacia ramulosa var. linophylla, Acacia quadrimarginea and Acacia grasbyi low trees, over Thryptomene costata and Thryptomene decussata open mid to low shrubland, over Aristida contorta open tussock grassland. Yy1 Acacia ramulosa var. linophylla and Acacia ramulosa var. ramulosa open tall shrubland. Yp1 Acacia coolgardiensis tall shrubland to low woodland, over isolated Eremophila forrestii mid to low shrubs. Yp2 Acacia ramulosa var. linophylla (+/- Acacia ramulosa var. ramulosa and Acacia tetragonophylla) tall to mid shrubland, over Enchylaena tomentosa var. tomentosa sparse low shrubland. Yp3 Mixed Eucalyptus spp. low woodland, over sparse Acacia spp. mid shrubland. Yp4 Eucalyptus kochii subsp. amaryssia open mid woodland, over isolated Acacia ramulosa var. ramulosa tall shrubs, over isolated Acacia andrewsii, Ptilotus obovatus and Maireana spp. low shrubs, over isolated Eriachne helmsii tussock grasses. Yp5 Acacia ramulosa var. linophylla, Acacia grasbyi, Acacia burkittii and Acacia aneura open tall shrubland. OPR Rail Development Public Environmental Review 55 Code Description Yp6 Acacia burkittii, Acacia quadrimarginea, Acacia aneura (+/- Acacia aff. rhodophloia ) over isolated Hakea preissii and Senna spp. mid shrubs, over Ptilotus obovatus and Acacia scleroclada sparse low shrubland, over Cymbopogon ambiguus and Aristida contorta open tussock grassland. Yf1 Acacia burkittii and Acacia grasbyi and (+/- Acacia ramulosa var. linophylla) sparse tall shrubland over Acacia tetragonophylla sparse tall to mid shrubland, over Aristida contorta sparse tussock grassland. Yf2 Isolated Acacia synchronicia tall shrubs, over isolated Senna sp. Meekatharra (E. Bailey 1-26), Acacia synchronicia, Acacia tetragonophylla and Eremophila galeata mid shrubs, over Aristida contorta tussock grassland. Yf3 Acacia victoriae sparse tall shrubland, over Atriplex bunburyana open mid shrubland, over Atriplex bunburyana sparse low shrubland, over Aristida contorta and Eragrostis dielsii sparse tussock grassland. Yf4 Tecticornia disarticulata, Rhagodia eremaea, Frankenia laxiflora, Sclerolaena cuneata and Cratystylis subspinescens low shrubland. Yf5 Acacia eremaea sparse tall shrubland, over mixed Chenopod spp. low shrubland. Yc1 Casuarina obesa open to sparse low forest, over Duboisia hopwoodii sparse tall shrubland, over Atriplex amnicola, Tecticornia indica subsp. bidens and Tecticornia lepidosperma open low Chenopod shrubland, over *Hordeum glaucum and *Avena fatua tussock grassland. Yc2 Acacia burkittii (+/-Acacia acuminata ) mid woodland, over Acacia burkittii, Hakea preissii and Acacia tetragonophylla low woodland to sparse tall shrubland, over Ptilotus obovatus sparse low shrubland, over Cyperus bifax sparse sedgeland, over Monachather paradoxus and *Setaria verticillata tussock grassland. Mh1 Acacia rhodophloia, Acacia ramulosa var. linophylla and Acacia cuthbertsonii subsp. cuthbertsonii open tall shrubland, over Eriachne aristidea sparse tussock grassland. Mh2 Sparse Acacia aneura and/or Acacia rhodophloia low woodland, over Ptilotus obovatus sparse low shrubland. Mh3 Isolated Acacia aneura (+/- Acacia ramulosa var. linophylla and Acacia cuthbertsonii subsp. cuthbertsonii) low trees, over isolated Aristida contorta tussock grasses. Mh4 Acacia aneura and Acacia citrinoviridis open low woodland, over Acacia ramulosa var. linophylla sparse tall shrubland, over Sida cardiophylla and Ptilotus obovatus open low shrubland, over isolated Monachather paradoxus tussock grasses. Mh5 Acacia aneura (+/- Acacia ramulosa var. linophylla) sparse to open low woodland, over mixed Eremophila spp. mid shrubland. Mh6 Isolated Acacia pruinocarpa low trees, over Acacia aneura sparse tall shrubland, over Thryptomene decussate (+/- Prostanthera petrophila, Dodonaea petiolaris, Eremophila latrobei subsp. latrobei and Philotheca brucei subsp. brucei) mid shrubland, over Ptilotus obovatus low shrubland, over Eriachne mucronata and Cymbopogon ambiguus sparse tussock grassland. Mh7 Acacia sp. Weld Range (A. Markey & S. Dillon 2994) and Acacia aneura open tall shrubland, over Eremophila macmillaniana and mixed Senna spp. open mid shrubland, over Ptilotus obovatus open low shrubland. Mh8 Acacia aneura open low woodland, over Eremophila macmillaniana open mid shrubland, over Sida atrovirens scattered low shrubs, over Aristida contorta open tussock grassland. Mh9 Acacia aneura open low woodland, over Grevillea obliquistigma subsp. obliquistigma and Eremophila spathulata sparse mid shrubland, over Eremophila latrobei subsp. latrobei sparse low shrubland, over Eriachne pulchella subsp. pulchella sparse tussock grassland. Mh10 Acacia spp., sparse tall shrubland, over Eremophila spp. sparse mid shrubland. Mh11 Acacia aff. rhodophloia open tall shrubland, over Dodonaea petiolaris sparse mid shrubland, over Pluchea dentex, Stemodia viscosa, Solanum lasiophyllum and Hibiscus coatesii sparse low shrubland, over Aristida contorta and Cymbopogon ambiguus tussock grassland. Mh12 Eremophila platycalyx subsp. platycalyx and Acacia tetragonophylla sparse tall shrubland, over isolated Dodonaea viscosa subsp. spatulata low shrubs, over Cymbopogon ambiguus sparse tussock grassland. Mh13 Acacia sp. Weld Range (A. Markey & S. Dillon 2994) sparse mid shrubland, over Dodonaea pachyneura and Philotheca aff. tubiflora sparse low shrubland, over isolated Eragrostis sp. tussock grasses. Mh14 Isolated Acacia aneura low trees, over Thryptomene decussata sparse mid to low shrubland, over isolated Monachather paradoxus tussock grasses. Mh15 Acacia aneura open low woodland, over Sida spp. and Ptilotus obovatus sparse low shrubland. Mh16 Acacia aneura open low woodland, over Acacia synchronicia and Acacia tetragonophylla sparse tall shrubland, over Maireana triptera and Ptilotus obovatus sparse low shrubland, over Aristida contorta open tussock grassland. OPR Rail Development Public Environmental Review 56 Code Description Mh17 Acacia aneura open low woodland, over Acacia ramulosa var. linophylla open tall shrubland, over Aluta aspera subsp. hesperia and Eremophila forrestii open mid shrubland, over Monachather paradoxus sparse tussock grassland. Mh18 Acacia spp. sparse tall shrubland, over Eremophila latrobei subsp. latrobei and mixed Myrtaceae spp. open low shrubland. Mr1 Acacia aneura sparse low woodland, over Eremophila compacta subsp. compacta mid shrubland, over Mirbelia rhagodioides and (+/-Hemigenia virescens) sparse low shrubland, over Aristida holathera var. holathera, Eriachne aristidea and Eragrostis desertorum tussock grassland. Mr2 Acacia aneura open low woodland, over Acacia ramulosa var. linophylla open tall shrubland, over Eremophila forrestii (+/- Eremophila simulans subsp. simulans) open mid shrubland, over Eriachne helmsii and Monachather paradoxus open tussock grassland. Mr3 Acacia aneura open tall shrubland, over Eremophila forrestii (+/- Eremophila fraseri and Senna spp.) open mid shrubland, over Ptilotus obovatus open low shrubland, over Monachather paradoxus open tussock grassland. Mp1 Eremophila spathulata and/or Eremophila macmillaniana sparse mid shrubland. Mp2 Acacia aneura sparse low woodland, over Eremophila fraseri (+/- Eremophila macmillaniana ) and Senna artemisioides subsp. helmsii open mid shrubland, over Ptilotus obovatus sparse low shrubland, over Eriachne pulchella subsp. pulchella and Aristida contorta sparse tussock grassland. Mp3 Isolated Acacia aneura low trees, over open Senna artemisioides subsp. helmsii, Senna glaucifolia and Senna sp. Meekatharra (E. Bailey 1-26) mid shrubland, over Ptilotus obovatus sparse low shrubland, over Aristida contorta sparse tussock grassland. Mp4 Isolated Acacia pruinocarpa low trees, over Acacia aneura and Acacia craspedocarpa x aneura sparse tall shrubland, over isolated Eremophila fraseri mid shrubs, over Ptilotus obovatus sparse low shrubland. Mp5 Acacia aneura open low woodland, over isolated Acacia demissa tall shrubs, over Senna artemisioides subsp. helmsii sparse mid shrubland, over Ptilotus obovatus sparse low shrubland. Mp6 Isolated Acacia aneura low trees, over Ptilotus obovatus and mixed Maireana spp. low shrubland. Mp7 Acacia aneura sparse low woodland, over Acacia craspedocarpa tall shrubland, over Acacia tetragonophylla sparse mid shrubland, over Eremophila punicea, Solanum lasiophyllum and Ptilotus obovatus sparse low shrubland, over Aristida contorta sparse tussock grassland. Mp8 Acacia aneura isolated low trees to open woodland, (+/- Acacia tetragonophylla, Acacia craspedocarpa and Acacia ramulosa var. linophylla) tall shrubs, over Eremophila fraseri, Ptilotus obovatus and Solanum lasiophyllum sparse low shrubland, over Aristida contorta open tussock grassland. Mp9 Isolated Acacia aneura and Eremophila platycalyx low trees, over Eremophila fraseri subsp. fraseri, Eremophila platycalyx, Senna artemisioides subsp. helmsii and Senna sp. Meekatharra (E. Bailey 1-26) open mid shrubland, over Eremophila alternifolia sparse low shrubland, over Aristida contorta sparse tussock grassland. Mp10 Aristida holathera var. holathera, Eragrostis cumingii, Eriachne flaccida, Eriachne pulchella subsp. Pulchella and Eragrostis setifolia tussock grassland, over Bulbostylis barbata and Fimbristylis dichotoma sedgeland. Mp11 Acacia aneura sparse to open low woodland, over Eremophila forrestii, Eremophila fraseri and Senna spp. sparse mid shrubland, over Aristida contorta tussock grassland. Mp12 Acacia aneura low woodland, over Acacia aneura x craspedocarpa and Acacia tetragonophylla open tall shrubland, over isolated Eremophila forrestii and Eremophila fraseri mid shrubs, over Aristida contorta and Eragrostis dielsii open tussock grassland. Mf1 Melaleuca stereophloia open to closed mid shrubland, over mixed Chenopod spp. low shrubland. Mf2 Eucalyptus striaticalyx subsp. striaticalyx and Eucalyptus trivalva open mid to low forest, over Maireana georgei, Frankenia laxiflora and Atriplex bunburyana sparse low shrubland. Mf3 Tecticornia pruinosa low shrubland, over Fimbristylis dichotoma and Eragrostis pergracilis open tussock grassland. Mc1 Casuarina pauper sparse low woodland, over Tecticornia spp. low shrubland. Mc2 Eucalyptus victrix open mid woodland, over Acacia burkittii and Acacia aneura sparse low woodland, over Acacia burkittii and Dodonaea viscosa subsp. spatulata open mid shrubland, over Cyperus bifax sparse sedgeland and Eriachne helmsii sparse tussock grassland. Mc3 Eucalyptus victrix and Acacia cyperophylla var. cyperophylla closed low to mid woodland. Mc4 Acacia aneura and Acacia ramulosa var. linophylla open to closed low woodland, over mixed Eremophila spp. open mid shrubland, over Ptilotus spp. sparse low shrubland. Mc5 Acacia aneura and Acacia tetragonophylla (+/- Acacia kempeana) low woodland. OPR Rail Development Public Environmental Review 57 Code Description Mc6 Mixed Acacia aneura, Acacia ramulosa var. ramulosa and Acacia tetragonophylla low woodland. Mc7 Acacia ramulosa var. ramulosa open low woodland, over Acacia burkittii and Acacia craspedocarpa x aneura sparse low woodland, over Acacia tetragonophylla sparse mid shrubland, over Monachather paradoxus, Eragrostis leptocarpa and Eriachne flaccida sparse tussock grassland. Mc8 Acacia acuminata and Acacia aneura open low woodland (+/-Casuarina pauper ), over Acacia acuminata, Grevillea obliquistigma subsp. obliquistigma, Callistemon phoeniceus and Senna artemisioides subsp. X artemisioides open tall to mid shrubland, over Cyperus spp. sparse sedgeland. 5.2.1.4 Vegetation Condition Vegetation condition within the Study Area was noted at each quadrat, based on factors such as the presence of weeds, tracks, litter, grazing and any other ground disturbances. Vegetation condition was also compared against the vegetation scales in Bush Forever Volume 2 (Bush Forever, 2000). Vegetation condition within the Study Area varied along its length. Table 5‐6 shows the vegetation condition level recorded in the freehold and pastoral sections of the Study Area. The freehold area results do not include areas devoid of native vegetation as these areas were not surveyed. Therefore it is an assessment of the remaining native vegetation in that area. Table 5‐6 Vegetation condition assessment Vegetation Condition Level Freehold Land Area (%) Pastoral Land Area (%) Pristine No disturbance 4.7 0 Excellent Minimal disturbance 33.1 19.3 Good Moderate disturbance 36.2 47.4 Poor Significant disturbance 22.8 31.6 Degraded/Fully Cleared Very high disturbance 3.2 1.7 Farming has affected the condition of the vegetation in the freehold section of the Study Area. Factors affecting the vegetation include clearing, the introduction of weeds, the proliferation of species that are resistant to grazing, and salinity. Recent low intensity, localised fires have also adversely affected vegetation condition in some areas. Vegetation condition in remnants along the freehold section of the Study Area was largely determined by size. The smaller areas were more susceptible to the disturbance factors considered and therefore tended to be more degraded. Disturbance within the pastoral section of the Study Area was moderate. The main factor affecting vegetation condition is grazing pressure from cattle and introduced fauna. Cleared areas devoid of native vegetation encompass 16.6% (37,414 ha) of the entire Study Area. 5.2.1.5 Vegetation of Conservation Significance Vegetation communities may be protected at a National level under the EPBC Act. No communities listed under the Environmental Protection and Biodiversity Conservation Act 1999 (EPBC Act) have been recorded in the Study Area. Vegetation communities in WA may be protected at State level by the Minister for the Environment, through listing as a Threatened Ecological Community (TEC) or Priority Ecological Community (PEC), or may be declared as an Environmentally Sensitive Area (ESA). OPR Rail Development Public Environmental Review 58 No TECs or ESAs have been recorded within the Study Area (DEC 2010), however four PECs have been recorded within the Study Area, all of which are categorized as Priority 1 PECs. These are described in Table 5‐7. Priority 1 PECs are poorly‐known ecological communities with apparently few, small occurrences, all or most not actively managed for conservation (e.g. within agricultural or pastoral lands, urban areas, active mineral leases) and for which current threats exist. Communities may be included if they are comparatively well‐known from one or more localities but do not meet adequacy of survey requirements, and/or are not well defined, and appear to be under immediate threat from known threatening processes across their range (DEC 2007). Table 5‐7 PEC recorded within the Study Area PEC Community Description Jack Hills Vegetation Complexes Banded Iron Formation. Upland Spinifex community with Acacia cockertoniana. Moresby Range Vegetation Association Melaleuca megacephala and Hakea pycnoneura thicket on stony slopes, Verticordia dominated low heath and Allocasuarina campestris and Melaleuca uncinata thicket on superficial laterite, on Moresby Range Tallering Peak Vegetation Complexes Tallering Peak in the northwest is a massif of banded ironstone and jaspilite, with outcropping masses or rock along the spine. Vegetation is sparse and includes shrubs of only 1.2 m of Acacia quadrimarginea, Acacia coolgardiensis, Eremophila leucophylla, Thryptomene johnsonii, a small Baeckea sp. or Thryptomene sp. and Ptilotus obovatus. Weld Range Vegetation Complexes Banded Iron Formation. Significant Vegetation Associations Beard vegetation mapping was used to determine significant vegetation associations. A vegetation association was determined to be significant if less than 30% of the communities’ pre‐European extent remained. As the freehold area has been extensively cleared and clearing is limited in the pastoral area, only the freehold area contained vegetation associations with less than 30% of their pre‐European extent remaining. The freehold area is contained within the boundaries of the Geraldton Sandplains IBRA region. Table 5‐8 Beard vegetation associations within the Study Area with <30% of their pre‐ Kataloq: sites -> default -> files -> PER documentation PER documentation -> Oakajee port and rail opr rail development vegetation and flora assessment PER documentation -> Flora and vegetation of aviva lease area PER documentation -> Enclosure 1 2007 Seismic Survey Vegetation PER documentation -> Vegetation and Flora Survey Report PER documentation -> Midwest corporation limited PER documentation -> Tronox management pt y ltd PER documentation -> Flora and vegetation of barrambie survey area, bore fields and water pipeline corridor Yüklə 26,37 Mb. Dostları ilə paylaş:
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