Land Unit Master

Land Unit Information Sheet

Land system name: Desert

Land unit: DT1

General description This land unit represents one of the most common, and most extensive, soil-vegetation associations on the Desert Uplands plateau. The very deep, sandy gradational and texture-contrast soils are part of an extensive sandsheet, easily recognised by the bright red colour of the soils and the specific vegetation community. The mid-tall woodlands of Eucalyptus similis (Queensland yellowjacket), Corymbia clarksoniana (Clarkson's bloodwood), C. leichhardtii (rustyjacket) and C. setosa (applejack) often form a "grove-like" pattern across the slope with broad open areas of Triodia species (spinifex) in between each row. A dense understorey dominated by Acacia meleodora (waxy wattle), A. coriacea (desert oak), Alphitonia excelsa (soap tree) and Petalostigma pubescens (quinine tree) benefit from the leaf litter under the tree canopy and the extra soil moisture obtained by "capturing" water runoff from the adjacent spinifex area upslope. Regional ecosystem 10.5.1 is predominant.

Site characteristics Landform element Average slope Plain 1% Site drainage Soil permeability Rapidly drained Highly permeable Flooding risk Inundation risk Nil Nil Potential recharge to groundwater Soil depth High Very deep; 1.5 - 5.0 m Present land use Grazing

Susceptibility to land degradation processes

Sheet erosion Gully erosion Wind erosion Salting High Very low Low Very low

This information has been generated from the Desert Uplands Land Resource Database. The Environmental Protection Agency accepts no liability for any decisions or actions taken on the basis of this information. State of Queensland. Environmental Protection Agency 2004.

6/12/2005 Land Unit DT1 - page 1 Representative site number: 1051

Soil classification Australian Soil Classification Principle Profile Form CH AA AG CD - A E K O X Dr4.51 - 1/0/007

General soil description A texture-contrast profile with a thin, weak red, clayey sand topsoil over a dark red sandy clay loam.

Soil profile morphology

Horizon Horizon no Depth Description A 1 0.00 - 0.04 Dusky red sandy clay loam; No mottles; no coarse fragments; Massive; no segregations; Dry very weak; Abrupt to; B21 2 0.04 - 0.35 Dark red sandy clay; No mottles; very few small pebbles subrounded Ironstone coarse fragments; Massive; no segregations; Dry very weak; B22t 3 0.35 - 2.00+ Dark red light clay; No mottles; very few small pebbles subrounded Ironstone coarse fragments; no segregations; Dry very firm;

Soil chemical analysis P S H A D P h a G N o O S o i l H S l o u s m s r D r t u o t r o l s p i

a m a t g a z c t e d p a a r p v e r s k a o o p i i t i H t i e h r z s n c t e i n u n n t s n e o l o i i h i n i s

u t t i u r g c % n n r o e y t m m u

o n n s . t

A 1 0.00 - 0.04 6.6 0.00 Deficient Low High - Nil - Very low Moderate N N Moderate B21 2 0.04 - 0.35 6.3 0.26 Deficient Low High - Nil - Very low Very low N N Moderate

6/12/2005 Land Unit DT1 - page 2 Field sites within this land unit (see technical report for original site nos.) Site code Site type Site code Site type Site code Site type Site code Site type 17 DUSLARA Tertiary 276 DUSLARA Tertiary 1045 DUSLARA Tertiary 2024 Buchanan-Dyllingo-Galilee 18 DUSLARA Tertiary 278 DUSLARA Tertiary 1046 DUSLARA Tertiary 2039 Buchanan-Dyllingo-Galilee 19 DUSLARA Primary 393 DUSLARA Tertiary 1049 DUSLARA Tertiary 2083 Buchanan-Dyllingo-Galilee 24 DUSLARA Tertiary 394 DUSLARA Tertiary 1050 DUSLARA Tertiary 2102 Buchanan-Dyllingo-Galilee 35 DUSLARA Tertiary 396 DUSLARA Tertiary 1051 DUSLARA Primary 2131 Buchanan-Dyllingo-Galilee 39 DUSLARA Tertiary 493 DUSLARA Primary 1052 DUSLARA Tertiary 3568 Corveg 91 DUSLARA Tertiary 877 DUSLARA Primary 1053 DUSLARA Tertiary 3569 Corveg 93 DUSLARA Tertiary 898 DUSLARA Tertiary 1056 DUSLARA Tertiary 3581 Corveg 189 DUSLARA Primary 930 DUSLARA Tertiary 1057 DUSLARA Tertiary 4096 Corveg 191 DUSLARA Tertiary 932 DUSLARA Primary 1058 DUSLARA Primary 4097 Corveg 193 DUSLARA Tertiary 934 DUSLARA Tertiary 1193 DUSLARA Primary 4111 Corveg 194 DUSLARA Tertiary 935 DUSLARA Tertiary 1196 DUSLARA Tertiary 4122 Corveg 195 DUSLARA Secondary 943 DUSLARA Tertiary 1311 DUSLARA Tertiary 4127 Corveg 201 DUSLARA Tertiary 948 DUSLARA Tertiary 1313 DUSLARA Primary 4128 Corveg 208 DUSLARA Tertiary 951 DUSLARA Tertiary 1315 DUSLARA Primary 4136 Corveg 229 DUSLARA Tertiary 957 DUSLARA Tertiary 1317 DUSLARA Tertiary 4137 Corveg 230 DUSLARA Primary 958 DUSLARA Tertiary 1320 DUSLARA Tertiary 4140 Corveg 231 DUSLARA Tertiary 959 DUSLARA Primary 1321 DUSLARA Tertiary 4146 Corveg 274 DUSLARA Tertiary 960 DUSLARA Tertiary 1323 DUSLARA Tertiary 4162 Corveg 275 DUSLARA Primary 1015 DUSLARA Primary 2010 Buchanan-Dyllingo-Gali4le1e97 Corveg

Summary of plant species within this land unit

Species Common name Abildgaardia ovata - Abutilon macrum slender lantern bush Acacia adsurgens wattle Acacia aneura mulga* Acacia bancroftiorum ghost wattle, white trunked wattle Acacia catenulata bendee* Acacia chippendalei Chippendale's wattle Acacia chisholmii turpentine bush, Chisholm's wattle Acacia coriacea desert oak, wirewood, dogwood, wiry wattle Acacia coriacea subsp. sericophylla Acacia cowleana (Acacia oligophleba) Cowley's wattle*, sand wattle Acacia cowleana (Acacia oligophleba) Acacia elachantha wattle Acacia excelsa ironwood*, brigalow, bunkerman, ironwood wattle Acacia galioides - Acacia holosericea soap bush wattle, candelabra wattle Acacia hyaloneura wattle Acacia laccata Acacia lazaridis - Acacia leptostachya slender wattle Acacia longispicata wattle, black wattle, curracabah Acacia melleodora waxy wattle Acacia platycarpa ghost wattle Acacia shirleyi lancewood* Acacia sp. - Acacia sp. (Ronlow Park EJ Thompson+ 61)

6/12/2005 Land Unit DT1 - page 3 Species Common name Acacia stipuligera ampwey Acacia tenuissima narrow-leaved wattle Acacia torulosa - Alloteropsis semialata cockatoo grass* Alphitonia excelsa soap bush*, red ash, soaptree, white myrtle Alternanthera nana hairy joyweed*, downy joyweed, downy pigweed, native carpetweed Alternanthera sp. joyweed Amphipogon caricinus var. sericeus - Amphipogon sericeus (Amphipogon long greybeard grass caricinus var. sericeus) Amyema sanguineum red mistletoe Aristida calycina dark wiregrass, branched wiregrass Aristida calycina var. calycina dark wiregrass Aristida caput-medusae many-headed wiregrass Aristida echinata prickly threeawn, blue wiregrass, No. 8 wiregrass, tall wiregrass Aristida helicophylla - Aristida holathera erect kerosene grass, wiregrass, kerosene grass, large silver grass, tall kerosene grass Aristida holathera var. holathera erect kerosene grass, wiregrass Aristida inaequiglumis unequal threeawn, feathertop threeawn, wiregrass Aristida ingrata wire grass Aristida jerichoensis Jericho wiregrass, blue speargrass, Jericho three-awn, No. 9 wiregrass, Number nine Aristida jerichoensis var. jerichoensis Jericho wiregrass Aristida jerichoensis var. subspinulifera Aristida latifolia feathertop wiregrass*, curly wiregrass Aristida pruinosa gulf wiregrass, Gulf feathertop wiregrass Aristida sp. three-awn speargrass*, wiregrass Arthropodium strictum vanilla lily, chocolate lily Atalaya hemiglauca whitewood*, cattle bush Boerhavia sp. tarvine* Bonamia media grey-vine Bothriochloa ewartiana desert bluegrass*, desert Mitchell grass, Tableland Mitchell grass, lagoon Bothriochloa or Dichanthium sp. - Bothriochloa sp. Brachychiton populneus kurrajong Brachychiton populneus subsp. trilobus - Breynia oblongifolia coffee bush*, dwarfs apple* Brunoniella australis blue trumpet* Bursaria incana hoary blackthorn*, prickly pine*, mock orange Cajanus acutifolius - Calotis cuneifolia burr daisy*, purple burr daisy, bindy-eye, blue burr daisy, bogan flea Calotis sp. burr daisy* Calotis xanthosioidea - Calytrix microcoma desert fringe myrtle, desert heather Camptacra barbata - Canthium attenuatum myrtle Canthium oleifolium myrtle tree,* wild lemon Canthium sp. - Capparis canescens wild orange*, pomegranate*, wild pomegranate

6/12/2005 Land Unit DT1 - page 4 Species Common name Carissa lanceolata currant bush*, conkerberry, Australian carissa, boonum bush, burrum bush, conkleberry Carissa ovata currant bush*, blackberry*, kunkerberry*, baroom bush, burrum bush Cassia sp. - Cassinia sp. coughbush* Cassytha filiformis dodder laurel*, dodder, love vine Cenchrus ciliaris (1,5) buffel grass*, African foxtail, black buffel grass, Rhodesian foxtail, slender buffel grass Chamaesyce coghlanii - Chamaesyce drummondii caustic-weed*, caustic creeper, creeping spurge, flat spurge, mat spurge, spurgewort Chamaesyce inappendiculata - Chamaesyce mitchelliana var. mitchelliana Cheilanthes sieberi mulga fern*, resurrection fern*, rock fern Chemaecrysta pumila - Chenopodium ambrosioides (1,5) Mexican tea*, antweed, demigod's food, stinking fathen, wormseed Chloris sp. - Chrysocephalum apiculatum yellow buttons*, common everlasting Chrysopogon fallax golden beardgrass*, golden-beard grass, ribbon grass Chrysopogon pallidus ribbon grass, golden-beard grass Chrysopogon sp. - Clerodendrum floribundum lollybush*, thurkoo* Comesperma pallidum - Corymbia brachycarpa (Eucalyptus gum topped bloodwood brachycarpa) Corymbia clarksoniana (Eucalyptus grey bloodwood*, southern long-fruited bloodwood*, Clarkson's dolichocarpa) bloodwood Corymbia clarksoniana x plena bloodwood Corymbia dallachiana ghost gum Corymbia dallachiana (Eucalyptus papuana) Corymbia erythrophloia (Eucalyptus gum-topped bloodwood*, red bloodwood*, variable-barked bloodwood, erythrophloia) red barked bloodwood Corymbia lamprophylla (Eucalyptus shiny-leaf bloodwood lamprophylla) Corymbia leichhardtii rustyjacket*, variable-leaved yellowjacket*, yellowjacket, Leichhardt's jacket Corymbia peltata (Eucalyptus peltata) yellowjacket*, broad-leaved rustyjacket Corymbia plena large fruited bloodwood Corymbia polycarpa (Eucalyptus long-fruited bloodwood* polycarpa) Corymbia polycarpa (Eucalyptus long-fruited bloodwood*/grey bloodwood*, southern long-fruited polycarpa)/Corymbia clarksoniana bloodwood*, Clarkson's bloodwood (Corymbia dolichocarpa) Corymbia setosa (Eucalyptus setosa) rough-leaved bloodwood*, desert bloodwood, rough-leaf bloodwood, applejack, hairy gum Corymbia similis or leichhardtii Queensland yellowyacket*/rustyjacket* Corymbia sp. bloodwood Corymbia terminalis (Eucalyptus western bloodwood*, desert bloodwood*, inland bloodwood, bloodwood, terminalis) kulcha, long-fruited bloodwood, pale bloodwood Crotalaria medicaginea trefoil rattlepod* Crotalaria novae-hollandiae - Cyanthillium cinereum veronia

6/12/2005 Land Unit DT1 - page 5 Species Common name Cymbopogon bombycinus silky-top grass*, silky oilgrass, citronella grass, native lemon grass Cymbopogon obtectus silkyheads*, lemon scentgrass, woolly-headed grass Cymbopogon refractus barbed-wire grass*, kangaroo grass, turpentine grass Cymbopogon sp. - Cyperus gunii Dactyloctenium radulans button grass*, coast button grass, eight-day grass, finger grass, small crowsfoot Dendrophthoe glabrescens orange-flowered mistletoe*, orange mistletoe Dianella rara lily Dianella sp. blueberry lily*, flax lily* Dicanthium sp. - Dichostemon sp. Digitaria ammophila silky umbrella grass*, hairy umbrella grass, cotton panic, spider grass Digitaria brownii cotton panic*, cotton panic grass, woolly finger, cotton grass, silver spike grass Digitaria sp. - Dipteracanthus australasicus Dipterocanthus australasicus Distichostemon dodecandrus distichostemon Dodonaea sp. hopbush* Dodonaea viscosa subsp. angustissima hop bush*, sticky hopbush*, broad-leaf hopbush Dodonaea viscosa subsp. viscosa sticky hop bush* Dysphania glomulifera red crumbweed Dysphania rhadinostachya green crumbweed Dysphania sp. - Enneapogon lindleyanus canetop nineawn*, nine-awn grass*, prickly couch*, wiry nineawn, bottlewasher Enneapogon polyphyllus leafy nineawn*, limestone bottlewashers, oatgrass Enneapogon sp. bottlewashers* Enneapogon virens - Eragrostis lacunaria purple lovegrass*, lovegrass, neverfail Eragrostis sp. lovegrass Eragrostis speciosa handsome lovegrass Eremophila mitchellii sandalbox*, bastard sandalwood*, budda, false sandalwood, sandalwood Eremophila sp. - Eremophylla longifolia Eriachne aristidea threeawn grass*, three-awn wanderrie, three-awn wanderrie grass, broad- leaf wanderrie grass Eriachne mucronata mountain wanderrie grass*, rock grass Eriachne sp. - Erythroxylum australe cocaine tree*, native cocaine, native cocoa, turkey bush Eucalyptus brownii Reid River box*, Brown's box* Eucalyptus camaldulensis river red gum*, creek gum, flooded gum, Murray red gum, red gum, river gum Eucalyptus crebra ironbark*, narrow-leaved red ironbark*, narrow-leaf ironbark, red ironbark Eucalyptus melanophloia x E. whitei silver ironbark* x White's ironbark* Eucalyptus melanophloia/Eucalyptus silver ironbark*/White's ironbark* whitei Eucalyptus similis Queensland yellowjacket*, yellowjacket Eucalyptus sp. ironbark Eucalyptus tereticornis red irongum*, forest red gum, blue gum, Gippsland red gum, Queensland blue gum, red rion gum

6/12/2005 Land Unit DT1 - page 6 Species Common name Eucalyptus whitei White's ironbark* Eucalyptus xanthoclada yellow-branched ironbark*, yellow ironbark Eulalia aurea silky browntop*, browntop, satintop, sugar grass, swamp grass Euphorbia sp. - Euphorbia tannensis desert spurge* Euphorbia tannensis subsp. eremophila desert spurge, bottletree caustic, caustic bush, caustic plant, spurgewort Everistia vacciniifolia spiny canthium*, small-leaved canthium Evolvulus alsinoides tropical speedwell*, baby blue eyes* Fimbristylis dichotoma common fringe-rush*, fimbri sedge*, eight-day grass Galactia sp. - Gastrolobium grandiflorum heart-leaf poison bush*, desert poison bush, Australian poison bush, desert poison, heart-leaf poison, pea-flowered poison bush, wallflower, wallflower poison bush Geijera salicifolia brush wilga*, scrub wilga, green satinheart Glycine clandestina var. sericea twining glycine Glycine sp. - Glycine tabacina glycine pea*, variable glycine, wild soybean Glycine tomentella woolly glycine*, rusty glycine Goodenia armitiana - Goodenia disperma fan flower* Goodenia glabra smooth goodenia* Goodenia goodeniacea - Goodenia sp. goodenia* Gossypium australe native cotton Grevillea decora red grevillea Grevillea glauca bushy's clothes peg*, bushmans clothes peg Grevillea juncifolia honeysuckle spider flower* Grevillea parallela silver oak Grevillea pteridifolia golden parrot tree* Grevillea sp. - Grevillea striata beefwood* Grewia retusifolia dysentery bush*, dog's balls*, emu berry Hakea lorea corkbark, bootlace, corkwood, witinti, bootlace oak Hakea sp. - Heteropogon contortus black speargrass*, bunch speargrass*, speargrass Heteropogon sp. speargrass Hibiscus burtonii - Hibiscus sp. Hovea lanceolata Hovea longifolia purple bush pea* Hovea sp. Hybanthus aurantiacus native violet*, orange spadeflower Hybanthus enneaspermus spade flower*, blue spade flower Indigofera australis Australian indigo*, austral indigo, hill indigo, native indigo Indigofera brevidens var. brevidens desert indigo Indigofera haplophylla - Indigofera linifolia native indigo, narrow-leaf indigo Indigofera pratensis forest indigo Jasminum didymum native jasmine* Jasminum didymum subsp. lineare desert jasmine*, native jasmine* Jasminum sp. -

6/12/2005 Land Unit DT1 - page 7 Species Common name Keraudrenia integrifolia common firebush Keraudrenia sp. - Leptosema oxylobioides Lithomyrtus microphylla Lysicarpus angustifolius budgeroo* Maireana villosa silky bluebush, common bluebush Malvastrum americanum (1,5) spiked mallow*, spiked malvastrum, bastard side-retusa, spiked false mallow, malvastrum, mulberry mallow, wild mulberry Marsdenia viridiflora native pear*, doubah* Maytenus cunninghamii yellow berry bush* Melaleuca tamariscina - Melhania oblongifolia velvet hibiscus Melhania ovata - Melinis repens (Rhynchelytrum repens) red natal grass*, natal grass, natal redtop (1,5) Muelleranthus stipularis sand pea Myoporum acuminatum coastal boobialla*, boobialla, water bush, native myrtle, western boobialla Oldenlandia mitrasacmoides - Olearia subspicata shrubby daisy bush, turkey-bush, emubush Owenia acidula emu apple*, gruie*, colane, sour plum Panicum bombycinum - Panicum effusum hairy panic*, branched panic, diffuse panic, effuse panic, poison panic, two-colour panic Panicum effusum (Panicum effusum var. effusum) Panicum sp. panicum Paraneurachne muelleri - Parsonsia lanceolata northern silkpod* Parsonsia sp. - Paspalidium gracile slender panic*, graceful picnic grass Peripleura bicolor - Peripleura obovata Persoonia falcata milky plum, wild pear, geebung Petalostigma banksii smooth-leaved quinine Petalostigma pubescens quinine tree*, bitterbark, native quince, quinine berry, quinine bush Petalostigma sp. - Phyllanthus carpentariae Phyllanthus carpentariae (Phyllanthus hebecarpus) Phyllanthus fuernrohrii silver phyllanthus, sand spurge Phyllanthus maderaspatensis - Phyllanthus sp. Phyllanthus sp. (KidstonP.I.Forster+PIF14945) Pimelea trichostachya flaxweed*, spiked riceflower*, annual riceflower, bootlace plant, borgia's bouquet, broombush, spiked pimelea Platysace valida - Polycarpaea breviflora Polycarpaea corymbosa Polygala isingii Polygala linariifolia native milkwort* Polymeria sp. -

6/12/2005 Land Unit DT1 - page 8 Species Common name Portulaca oleracea pigweed*, common pigweed, common purslane, munyeroo, neverdie, perennial pigweed, portulaca weed, purslane, red pigweed, purselane Portulaca pilosa subsp. pilosa hairy pigweed* Pterocaulon redolens ragweed Pterocaulon serrulatum ragwort Pterocaulon serrulatum var. serrulatum Ptilotus polystachyus longtails, bottlewashers, green mulla-mulla Ptilotus schwartzii pussytail, horse mulla mulla Rhynchosia minima ryncho*, rhynchosia Rhynchosia minima var. australis rhynchosia* Rhynchosia minima var. minima Rhynchosia sp. - Rostellularia adscendens dwarf justicia*, pink tongues Rostellularia adscendens var. clementii pink tongues, purple pipe cleaner Santalum lanceolatum plum bush*, sandalwood*, wild plum*, cherry bush, native plumbush, northern sandalwood, plumwood, true sandalwood, bush plum Sarga plumosum (Sorghum plumosum) plume sorghum Sauropus rigens stiff spurge Scaevola parvifolia fan flower Scaevola parvifolia subsp. parvifolia - Scaevola sp. Schizachyrium fragile firegrass*, red spathe grass, small redleaf Schoenus kennyi - Scleria brownii sedge Scleria sp. - Sehima nervosum rat's tail grass*, whitegrass Senna artemisioides butter bush*, desert cassia*, silver cassia*, silver desert cassia* Senna artemisioides subsp. filifolia silver cassia, punty bush Senna costata - Sida corrugata corrugated sida*, dwarf sida, native sida, sageweed, variable sida Sida fibulifera pin sida, silver sida Sida filiformis fine sida Sida rohlenae shrub sida Sida rohlenae subsp. rohlenae Sida sp. - Sida subspicata spiked sida*, Queensland hemp, subspicate sida Solanum cleistogamum - Solanum ellipticum potato bush*, hillside flannel bush, potato weed, tomato bush, velvet nightshade, velvet potato bush, wild gooseberry Solanum ferocissimum native tomato Sporobolus australasicus Australian dropseed*, fairy grass Sporobolus sp. - Stackhousia intermedia Stackhousia viminea slender stackhousia* Tephrosia brachyodon var. longifolia - Tephrosia juncea tephrosia Tephrosia leptoclada - Themeda avenacea native oatgrass*, native oat, oat kangaroo grass, oatgrass, tall oat, tall oatgrass Themeda triandra kangaroo grass*, red oatgrass Thyridolepis xerophila -

6/12/2005 Land Unit DT1 - page 9 Species Common name Tragus australianus small burr grass*, sago burrgrass, stockgrass, tickgrass Triodia bitextura curly spiniex, soft spinifex Triodia mitchellii buck spinifex*, spinifex, soft spinifex Triodia pungens soft spinifex, gummy spinifex, spinifex Triodia sp. spinifex Tripogon loliiformis five minute grass*, eight-day grass, rye beettle grass Uraria lagopodioides - Ventilago viminalis supplejack*, vine tree, thandorah Vittadinia pustulata fuzzweed Vittadinia sp. - Wahlenbergia sp. Australian bluebell* Waltheria indica waltheria Wedelia spilanthoides creeping sunflower* Zornia muriculata zornia* Zornia sp. -

1. Introduced plant 2. Consider for protection 3. Pending registration 4. Rare plant 5. Environmental weed 6. Endangered plant 7. Vulnerable plant 8. Agricultural pest * Wildnet preferred common name; Species in brackets refer to previously known name

Special features Implications for land use This soil-vegetation association represents theTertiary Vegetative ground cover is required at all times to protect the sand sheet that typifies the Desert Uplands bioregion. loose, sandy topsoils from erosion by runoff water. Gastrolobium grandiflorum (heartleaf poison bush) is The very low nutrient status and phosphorus deficiency, the common. presence of poison bush, and the "droughty" nature of the This land unit contains one of the most diverse vegetation soils places severe limitations on productivity. communities in the study area. The spinifex-dominant pasture has an inflammable resin and, The "grove-like" pattern of trees across some of the together with large quantities of leaf litter under the steeper slopes is a natural 'contour-bank' formation, bloodwoods, is highly susceptible to wild fires started by pre- which slows surface water flow, increases infiltration and wet season lightning strikes. maximises the proportion of rainfall entering the soil. The topsoils are highly susceptible to sheet erosion. The age, low fertility and isolation from similar areas of Loss of vegetative cover will result in increased runoff and this old surface mean that species have evolved here that erosion. are unique to it. Once the sandy topsoil is lost the exposed subsurface These red earths have high numbers of plants and changes to a very hard layer with very low infitration rate - animals of conservation significance, including rare, runoff is high and the ability to revegetate is very low. threatened species and endemic species. This land unit is included in Land Management Unit 3. The lack of semi-permanent and permanent water, low nutritional values and the presence of heartleaf poison bush have effectively protected this country from heavy grazing pressure, so that the native vegetation over quite large areas remains in near pristine condition with biodiversity and wilderness values of regional and national significance. The very deep soil profiles, with the special characteristics of low runoff and high infiltration rates, represent an important recharge zone for the Great Artesian Basin.

6/12/2005 Land Unit DT1 - page 10