Calwynyardah land system (Clw), size: 1736km2, publication source: wky


Camelgooda land system (Cml), size: 17,826km2, publication source: WKY



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Camelgooda land system (Cml), size: 17,826km2, publication source: WKY


Extensive dunefields, pindan and other low woodlands.

camelgooda land system is a large area (17826 km2) stretching from derby to fitzroy and south 200km from derby and fitzroy crossing.

Location map showing coverage of Camelgooda land system defined by black region.



State land type: Sandplains and dunes with pindan woodlands and spinifex/tussock grasslands.

Geology: Quaternary aeolian sands.

Geomorphology: Sandplains and dunefields, with little organised drainage: stable dunefields with swales opening locally into sandplain; restricted marginal plains with thin sand cover occur adjacent to dissected tracts and there are minor, isolated hills up to 60m high; limited surface drainage mainly as sheet-flow in tracts downslope from uplands and extending for short distances into dunefields; relief up to 12 m.

Land management: System is not generally prone to degradation or erosion although recently burnt areas have minor susceptibility to wind erosion but stabilise rapidly after rain. Control of grazing pressure and frequency of burning is desirable.

aerial picture of dune lines and black fire areas

Image of linear dunes and fire patterns in the spinifex vegetation of the Camelgooda land system. Width of this 2007 aerial photo is about 3km. Photo: Landgate



landscape block diagram with location of different land units drawn to scale.

Stylised block diagram showing location of land units for the Camelgooda land system (numbers on diagram represent land units in table below)



Table of Camelgooda land system – land units. * Numbers in brackets refer to soil family or vegetation community/alliance in ‘General report on lands of the West Kimberley area, WA’ (Speck et al. 1970); + Pasture types described in Appendix 1; Note: Proportions and occurrence of pasture types within land units are subject to change over time due to invasion by native and introduced species, seasonal conditions, fire frequency and grazing management.

Unit

Approx.
area
(%)

Landforms

Soils*

Vegetation*

Pasture type+

1

26

Dunes: linear, up to 12m high and 32km long, with narrow uneven crests; flanks slope 315% on north side and up to 20% on south.

Deep red sands: Cockatoo family (7).

Low woodland of bloodwood and/or Bauhinia with prominent tall shrub layer characterised by Acacia spp. and Triodia bitextura, Triodia pungens, and T. bitextura - Chrysopogon spp. ground storeys. Corymbia dichromophloia and Bauhinia cunninghamii alliances (10, 38a, 38b); crests 38c, locally 55.

PINP 80%
SSPP 20%

2

66

Swales and sandplain: swales to 1.6km wide with flat floors and concave marginal slopes up to 2%; locally opening into sandplain up to 3.2km.

Reddish sandy soils: Yabbagoddy family (1).

Low scrubby woodland with prominent tall shrub layer and Triodia bitextura - Chrysopogon spp., ground storeys, C. dichromophloia and Grevillea striata alliance(10, 8c, 12, 34a); locally 34b, 37b, 57.

PINP 80%
CSPP 20%

3

3

Tracts receiving runon: up to 1.6km wide and extending downslope for up to 4.8km; slopes less than 0.5%.

Mottled yellowish sandy soils: Tableland family (5).

Similar to unit 2 but with patches of paperbark trees (36).

SSPP

4

2

Plains with thin sand cover: up to 1.6km wide; lightly firmed slopes up to 5% with linear scalds and local outcrop.

Mainly reddish sandy soils; Yabbagoddy family (1), with some laterite and rock outcrop.

Complex of spinifex grasslands, with scattered trees and low open woodlands, Triodia bitextura and Triodia pungens communities (54, 55); Bauhinia cunninghamii alliance (38a, 38b).

CSPP

5

3

Pans and depressions: up to 3.2km wide; depressions very shallow with firmed sandy surfaces; pans up to 2m deep, with heavily cracking surfaces and marginal slopes up to 1%.

Depressions mainly greyish, mottled, sandy to loamy soils over tough, mottled clayey subsoils: Hooper family (20). Pans brownish, massive, intractable silty to heavy clays: Billabong floor soils (30).

Commonly Chrysopogon spp. grassland (49). Fringes of Melaleuca spp. (36) and 21.

RGRP




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