Natural resource management plan for the brockman river


GEOMORPHIC REGION/ELEMENT



Yüklə 2 Mb.
Pdf görüntüsü
səhifə8/10
tarix24.08.2017
ölçüsü2 Mb.
1   2   3   4   5   6   7   8   9   10

GEOMORPHIC REGION/ELEMENT

SOIL

LANDSCAPE SYSTEM

Dandaragan Plateau

Gentle Scarp

Re/Rg

Reagan


Gg

Gingin


Cm/Cb

Coonambidgee

Sandy (Lateritic) uplands

Mb/Mg


Mogumber

Cp*


Capitella

Ka

Karamal



Valleys

Md

Moondah



Yy*

Yalyal


Darling Plateau

Lateritic uplands

Yb

Yalanbee


C

Cook


Ug*

Udamong


Major valleys - slopes

Bi/Bn


Bindoon

Mn/Mi


Michibin

Major valleys - floors

No/Nn

Nooning


Br

Brockman


BV*

Berkshire Valley

Minor Valleys and drainage depressions

Ck

Coolakin



Pn

Pindalup


Yg

Yarragil


Yh*

Yarawindah

Reference: Evangelisti and Associates (1999) Shire of Chittering land capability and management study. Part 1 –

working paper.

*Source Agriculture WA surveys in progress, all others CSIRO (Churchward and McArthur, 1978)

7. Appendix 1: Geomorphology and

soil landscapes


7.2

Water and Rivers Commission

Natural Resource Management Plan for the Brockman River Catchment

Soil-landscape systems

The system of nomenclature for soils and soil landscapes within Western Australia is currently being revised by

Agriculture WA. Some soil landscape ‘systems’ referred to here may be renamed as soil landscape ‘subsystems’ and

many have previously been referred to as ‘soil/landform associations’ by CSIRO.

DANDARAGAN PLATEAU

Gentle Scarp

Reagan


Gently sloping scarp dominated by yellow or grey sands; some duricrust or 

gravels.


Gingin

Gently sloping irregular scarp; mainly red sandy soils with associated small

areas of red duplex soils and shallow black clays.

Coonambidgee

Gently sloping fringe to the Dandaragan Plateau; deep grey sands.

Sandy (lateritic) uplands

Mogumber


Gently undulating landscape; duricrust and gravels on crests and grey sands

in  broad shallow depressions.

Karamal

Gently undulating landscape dominated by deep yellow sands; some gravels



on ridges.

Capitella*

Subdued stripped lateritic plateau with undulating to gently undulating low 

rises and gently undulating plain including dunes. Geology is sandstone plus

alluvial and aeolian deposits. Pale and yellow sands, sandy gravels and some

duplex.


Valleys

Moondah


Valleys with deep red and yellow brown sands; occasional swamps.

Yalyal*


Drainage depressions in very gently sloping plain but gently sloping in the 

upper reaches.



DARLING PLATEAU

Lateritic Uplands

Yalanbee


Gently undulating landscape dominated by fine gravels; some duricrust on 

ridges.


Cook

Hills rising above general plateau level; mainly mantled by ;laterite but with

some rock outcrop.

Udamong*


Partially stripped lateritic plateau with undulating low hills and undulating

to gently undulating rises. Parent material is deep weathered granitic gneiss,

gneiss and schist. Soils are loamy gravel with minor pale sand and clay.


7.3

Water and Rivers Commission

Natural Resource Management Plan for the Brockman River Catchment

Major Valley Slopes

Bindoon


Steep irregular slopes with shallow red and yellow earths and much rock 

outcrop. Sometimes a gently sloping apron at base.

Michibin*

Stripped deep weathered plateau with rolling and undulating low hills. Parent

rock is weathered granitic gneiss and granite. Soils are loamy (some loamy 

earths) with gravels and rock outcrops.



Major Valley Floors

Nooning


Terraced floors of upper Brockman River; yellow duplex soils and 

sandy deposits; some swamps.

Berkshire Valley*

Partially rejuvenated level to gently undulating plain (relict flood plain). 

Parent material is alluvium. Soils are predominantly loamy earths and clay, 

with some duplex types.



Minor Valleys and Drainage Depressions

Coolakin


Valleys near the junction of the Darling and Dandaragan Plateaux; sandy and

gravelly duplex soils on the slopes; narrow valley floors; some rock outcrop.

Pindalup

Valleys of the western part of the plateau; gravelly duplex soils on slopes; 

some rock outcrop; grey sands, duplex yellow soils and orange earths in the

broad floors.

Yarawindah*

Dissected lateritic plateau with rolling to undulating low hills and undulating

rises. Parent material is weathered schist and some gneiss. Soils are 

predominantly loamy gravel, loamy earth, and loamy duplex, with some rock

occurring.

Reference:  Evangelisti and Associates (1999) Shire of Chittering land capability and management study. Part 1 –

working paper.

*As described within Agriculture WA survey areas and generally not mapped by CSIRO.



7.4

Water and Rivers Commission

Natural Resource Management Plan for the Brockman River Catchment


7.5

Water and Rivers Commission

Natural Resource Management Plan for the Brockman River Catchment

The following descriptions of the vegetation complexes of the Darling System of Western Australia are those outlined

by E. M. Heddle, O. W. Loneragan and J. J. Havel (1980).

DANDARAGAN PLATEAU

Mogumber Complex –North

This complex is dominated by open and closed-heaths. These heaths are the 

southerly extension of the northern heathlands. The marked absence of jarrah 

(Eucalyptus marginata) and marri (Corymbia callophylla) in this drier northern

section distinguishes it from the southern section. The open and closed heath-

heath of Casuarina humilisBanksia sphaerocarpa, several unnamed species of



BanksiaXanthorrhoea preissi and many other species, in particular Myrtaceae,

ProteaceaePaplionaceae and Epacridaceae occur on the low rises. The plant

species in this heath include Dryandra carlinoidesDryandra kippistiana,       



D. shuttleworthiiConospermum incurvumC. stoechadisC. acerosum

Mesomelaena stygiaM. tetragona and species of EremaeaCalothamnus

VerticordiaCalytrixDaviesiaOxylobium and Andersonia. Several rare 

species have been recorded and include Stachystemon axillarisCryptandra



humilis and an unnamed prostrate species of Banksia. Swales and shallow 

valleys that support a low open-forest to low open-woodland of banksia on the

valley floors surround the low rises. Associated with Banksia attenuata

B. menziesii and B. prionotes are B. burdettii, the pricklybark (Eucalyptus 

todtiana) and an occasional marri. 

Mogumber Complex –South

An open-woodland of marri with a well-defined second storey of pricklybark-

banksia (E. todtiana-B. attenuata-B. menziesii-B. ilicifolia) dominates this 

complex. The same pattern of marri extending further north than jarrah, seen on

the Swan Coastal Plain, is repeated in this area. Although localised patches of 

jarrah can be found they are restricted in size and number. Jarrah disappears 

first then marri as the rainfall decreases going northward. Understorey species

vary considerably depending on proportion of sand and gravel; depth of sand 

and moisture levels but include species as Nuytsia floribundaStirlingia 

latifoliaPetrophile linearisDaviesia pectinataCalothamnus sanguineus

Mesomelaena tetragonaBaekea camphorosmaeHypocalymma angustifolium,

Leptocarpus scariosusCasuarina humilisLyginia tenax and Bossiaea 

eriocarpa.

Karamal Complex –South

An open-forest of jarrah-marri with a definite second storey of B. grandis on the

gravely soils and B. attenuata, and B. menziesii on the sandier soils. Small areas

of wandoo occur in pockets. Other species that occur include Stirlingia latifolia,



Dryandra sessilisD. niveaHakea ruscifoliaPetrophile linearisJacksonia 

floribunda and species of CalytrixConostephium and Hakea.

Cullala Complex

A mixture of low open-forest of banksia-pricklybark and an open-woodland of

marri with a well defined second storey of B. attenuata-B. menziesii-B. 

ilicifolia characterises this complex. Other species include Nuytsia floribunda,

Stirlingia latifoliaCalothamnus sanguineusCasuarina humilis.

Appendix 2: Vegetation complexes in

the Brockman River catchment


7.6

Water and Rivers Commission

Natural Resource Management Plan for the Brockman River Catchment

Wannamal Complex

This complex is distinguished by the extensive areas of low shrubland of 



Melaleuca spp. On the swamps located to the west of the Wannamal township.

A minor component is the sedgelands associated with the areas subject to 

inundation. On the low dunes the vegetation consists of extensions of the 

Cullala complex, while to the east and north, the open-woodland of wandoo and

less consistently, York gum, adjoins the swamp vegetation.

Reagan Complex

This complex supports vegetation ranging from low open-woodland of B. 



attenuata-B. menziesii-E. todtiana to closed-heath, depending on the soil depth.

The composition of the understorey varies slightly depending on the proportion

of sand and gravel. Plant species include Adenanthos cygnorumPetrophile 

linearisMesomelaena tetragonaCasuarina humilisMesomelaena stygia

Hakea trifurcataDaviesia juncea, and species of HibbertiaEremaea

Conospermum and Conostephium.

DARLING PLATEAU

Dwellingup and Yalanbee

Restricted in occurrence to the ridges surrounding the Avon River Valley. It 



Complex in low to

appears to be a transitional complex with a mosaic of understorey species from



medium rainfall

adjacent complexes.

The dominant vegetation is open forest of jarrah-marri, (Eucalyptus marginata,

Corymbia calophylla). Other species include Daviesia pectinataStirlingia 

latifoliaAcacia brownianaAdenanthos barbigerusBanksia grandis

Grevillea wilsoniiPersoonia longifoliaLepidosperma angustatumHakea 

lissocarphaMacrozamia reidlei and Casuarina humilis.

Dwellingup , Yalanbee and

Compared to the previous complex, the floristic composition of the understorey



Hester Complex in low

species reflects the lower rainfall and warmer conditions in the northern and  to



medium rainfall

eastern sections of the jarrah forest.

The dominant vegetation is open forest of jarrah-marri, (Eucalyptus marginata,

Corymbia calophylla). Other species include Daviesia pectinataStirlingia 

latifoliaLepidosperma angustatum and Hakea lissocarpha.

Yalanbee and Dwellingup 

This complex consists of a mixture of open forest of jarrah-marri, Eucalyptus



Complex in low rainfall

marginataCorymbia calophylla and wandoo-marri woodlands of E, wandoo 

and Corymbia calophylla. Other species include Daviesia pectinataStirlingia



latifoliaLepidosperma angustatumHakea lissocarphaHibbertia lineata and

Hypocalymma angustifolium. Localised patches consist of a low open-forest of

rock sheoak (Casuarina heugeliana) and herblands on the shallow soils 

overlying granitic rocks.

Yalanbee Complex in 

This complex is restricted to the uplands in the low rainfall areas to the north 



low rainfall

and east of the Darling Plateau. It uniquely supports a mainly wandoo-

powderpark wandoo (E. wandoo-E. accedens) woodland. It overlaps with 

adjacent complexes by the minor occurrences of wandoo-marri woodland and 

open forest of jarrah-marri. The dominant site vegetation consists of E. wandoo,

Hakea lissocarphaHibbertia lineata and Hypocalymma angustifolium.


7.7

Water and Rivers Commission

Natural Resource Management Plan for the Brockman River Catchment

Cooke Complex

This complex occurs over a wide area with a large variation in depth of soil and

very varied associated vegetation.  Vegetation consists of lichens Borya nitida,

Grevillea bipinnatifidaHakea ellipticaHakea undulataHakea lissocarpha

Eucalyptus wandoo and Casuarina heuegliana. Several species of Acacia

Melaleuca and Verticordia also occur in the complex.

Pindalup and Yarragil 

This complex defines the distribution of the most westerly extension of wandoo



Complex in low to

in the shallow upper valleys and in the north, the wandoo woodlands extend 



medium rainfall

through the deeply dissected Bindoon and Murray units. The vegetation 

complex consists predominantly of an open-woodland of wandoo with some 

admixture of marri, yarri and jarrah and an open forest of jarrah-marri. As the 

valleys carrying wandoo-yarri woodlands occupy more fertile sites, most have

been cleared for agricultural purposes. The dominant vegetation consists of 



Daviesia pectinataEucalyptus marginataStirlingia latifoliaE. wandoo

Hakea lissocarphaHypocalymma angustifoliumBaeckea camphorosmae

Dampiera alata, and Hibbertia lineata.

Coolakin Complex in 

Wandoo woodland dominates this complex with a mixture of jarrah, marri and



low rainfall

yarri. The vegetation consists of Daviesia pectinataEucalyptus marginata



Stirlingia latifoliaE. wandooHakea lissocarphaHypocalymma 

angustifoliumBaeckea camphorosmaeDampiera alataHibbertia lineata

Diplolaena drummondiiHibbertia polystachyaLyginia tenaxMesomelaena 

tetragonaStyphelia tenuifoliaPatersonia rudisMacrozamia reidlei

Leucopogon propinquus and Leucopogon capitellatus.

Helena Complex in low 

Restricted to the western fringes of the Darling Plateau, it reaches maximum to



medium rainfall

development along the Avon River. The vegetation is variable, depending on the

depth of soil and ranges from open-forests to lichens. The distinctive feature of

this complex is the open-woodland of wandoo on the valley slopes and floors 

which provides the east-west link between wandoo in the eastern valleys and on

the scarp. The dominant vegetation consists of lichens Borya nitidaGrevillea



bipinnatifidaHakea ellipticaHakea undulataHakea lissocarphaEucalyptus

wandoo and Casuarina heugeliana. Several species of AcaciaMelaleuca and 

Verticordia also occur in the complex.

Murray and Bindoon 

This complex occurs in the moderately incised valleys of the Murray and 



Complex in low to

Bindoon units (less than 1100mm annual average rainfall)in the eastern and 



medium rainfall

northern areas of the Darling Plateau. The distinctive vegetation feature is the

wandoo woodland on the valley slopes, intermixed with some open forest of 

jarrah-marri-yarri and a woodland of E. rudis-M. rhaphiophylla on the fringes

of the water courses. The dominant vegetation consists of lichens Borya nitida,

Grevillea bipinnatifidaHakea ellipticaHakea undulataHakea lissocarpha

Eucalyptus wandooBaekea camphorosmaeDampiera alataHibbertia 

lineataHypocalymma angustifolium and Casuarina heugeliana. Several 

species of AcaciaMelaleuca and Verticordia also occur in the complex.



Williams-Avon-Brockman-

This complex occurs on the Valley floors of the Williams, Avon, Brockman and



Mumballup Complex

Preston Rivers. Despite the large variation in rainfall the vegetation in these 

valleys is similar, consisting of a fringing woodland of E. rudis-M. 

rhaphiophylla. On the fringes of this woodland the vegetation relates to the 

adjacent complexes.



7.8

Water and Rivers Commission

Natural Resource Management Plan for the Brockman River Catchment

Nooning Complex

This complex is restricted to the upper valley floors of the Brockman River that

are subject to inundation. The distinctive feature of this complex is the 

occurrence of low open-forest of Casuarina obesa and the open scrub of 



C.obesa-Acacia spp-Melaleuca spp. Localised patches of E. rudis-M. 

rhaphiophylla woodland occur along the streams.

Bindoon Complex

This complex coincides in the main with the Bindoon unit except for sections 

in the Chittering Valley. The vegetation is unique in the Darling System 

consisting predominantly of York gum (E. loxophleba) woodland which is 

flanked by wandoo woodland on the upper slopes. C. heugeliana is associated

with rock outcrops. This complex is best developed in the Darling System in the

valleys near Bindoon and Toodyay.

Michibin Complex

This complex coincides with the Michibin unit in the low rainfall area along the

eastern and northern fringes of the Darling Plateau. Its distinctive feature is the

dominance of wandoo woodland. York gum is located only in small patches and

mixed with wandoo. Acacia acuminataCasuarina heugeliana and A. 

microbotrya dominate the understorey, with C. heugeliana restricted to rock 

outcrops.



Darling Scarp Complex

A large variety of flora on a unique geological feature characterises this 

complex.  Several features are evident in this vegetation complex that coincides

with the Darling Scarp unit. These include a dominance of wandoo along the 

entire length of the Darling Scarp with an admixture of marri, the occurrence of

the rare butter gum (E. laeliae) on the northern areas, the occurrence of 

mountain gum (E. haematoxylon) on the southern areas, the intermingling of all

these species and the rare E. lane-poolei. The vegetation ranges from low open-

woodland of wandoo with admixtures of marri, butter gum and mountain gum,

through to low open-forest of C. heugeliana, through to heath, herblands of 



Borya nitida and lithic complex on the granite rocks.  Shrub species include 

Thomasia glutinosaVerticordia acerosaHakea incrassataH. stenocarpa

Grevillea bipinnatifidaHovea pungensGoodenia fasciculataPetrophile 

bilobaConospermum huegelii and Grevillea endlicherana.

DECLARED RARE FLORA

Priority Species

Conservation code

Acacia anomala

R

Anigozanthos humilis subsp. chrysanthus

R

Asterolasia nivea

R

Darwinia acerosa

R

Drakaea elastica

R

Eleocharis keigheryi

R

Spirogardnera rubescens

R

Thelymitra stellata

R

Baeckea sp.Chittering (R.J.Cranfield 1983)

1

Goodenia arthrotricha

1

Grevillea corrugata

1

Johnsonia inconspicua

1

Nemcia sparsa

1

Stylidium carlquistii

1

Synaphea panhesya

1

Acacia browniana var. glaucescens

2

Hakea sp.Walyunga (L.Penn s.n.)

2

Millotia tenuifolia var. laevis

2

Nemcia axillaris

2

Stylidium semaphorum

2

Trymalium urceolare

2

Verticordia bifimbriata

2

Verticordia serrata var. Udumung (D.Hunter & B.Yarran 941006)

2

Acacia anarthros

3

Acacia drummondii subsp. affinis

3

Acacia oncinophylla subsp. oncinophylla

3

Adenanthos cygnorum subsp. chamaephyton

3

Banksia micrantha

3

Dryandra drummondii subsp. hiemalis

3

Dryandra echinata

3

Grevillea uncinulata subsp. florida

3

Hakea myrtoides

3

Lambertia multiflora var. darlingensis

3

Monotoca leucantha

3

Nemcia acuta

3

Olax scalariformis

3

7.9


Water and Rivers Commission

Natural Resource Management Plan for the Brockman River Catchment

Appendix 3: Flora of the Brockman

River catchment


1   2   3   4   5   6   7   8   9   10




Verilənlər bazası müəlliflik hüququ ilə müdafiə olunur ©azkurs.org 2020
rəhbərliyinə müraciət

    Ana səhifə