Gidgia land system (Gia), size: 306km2, publication source: WKY Plains on deeply weathered granitic rocks, red sandy to loamy soils, woodlands with shrubs and spinifex. Location map showing coverage of Gidgia land system defined by black region. State land type: Plains with low woodlands and spinifex/tussock grasslands. Geology: Lateritized granite, gneiss, and schist of lower Proterozoic and Archaeozoic age. Geomorphology: Part of the Kimberley surface: gently sloping lateritized plains forming divides up to 19km in extent; surface drainage absent except for moderately dense branching pattern of incised channels on marginal stripped surfaces. Land management: Spinifex pastures not very attractive to livestock; system is stable and not prone to erosion. Image of nearly level gravelly plains (unit 1) with low woodlands of snappy gum (Eucalyptus brevifolia) are a major part of Gidgia land system. Curly spinifex (Triodia bitextura) is usually the dominant grass, although soft spinifex (T. pungens) is dominant in this photo. The unit is common to other land systems such as Geebee but Gidgia differs in that it has stripped margins and low breakaways which are absent in Geebee. Photo: DAFWA Stylised block diagram showing location of land units for the Gidgia land system (numbers on diagram represent land units in table below) Table of Gidgia land system land units. * Numbers in brackets refer to soil family or – vegetation community/alliance in report on lands of the West Kimberley ‘General area, (Speck et al. 1970); + Pasture types described in Appendix 1; Note: WA’ 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. Approx. Pasture Unit area Landforms Soils* Vegetation* type+ (%) Woodlands with Reddish, Stable plains: dense patches of sandy to loamy slopes less than CSPP Acacia shrubs and soils, with 1%; sandy 60% 1 85 Triodia bitextura variable surfaces sparsely HSPP Eucalyptus brevifolia amounts of with 40% alliance (1d); lateritic ironstone gravel. areas 1a. gravels:
Gidgia land system (Gia), size: 306km2, publication source: WKY Plains on deeply weathered granitic rocks, red sandy to loamy soils, woodlands with shrubs and spinifex. Location map showing coverage of Gidgia land system defined by black region. State land type: Plains with low woodlands and spinifex/tussock grasslands. Geology: Lateritized granite, gneiss, and schist of lower Proterozoic and Archaeozoic age. Geomorphology: Part of the Kimberley surface: gently sloping lateritized plains forming divides up to 19km in extent; surface drainage absent except for moderately dense branching pattern of incised channels on marginal stripped surfaces. Land management: Spinifex pastures not very attractive to livestock; system is stable and not prone to erosion. Image of nearly level gravelly plains (unit 1) with low woodlands of snappy gum (Eucalyptus brevifolia) are a major part of Gidgia land system. Curly spinifex (Triodia bitextura) is usually the dominant grass, although soft spinifex (T. pungens) is dominant in this photo. The unit is common to other land systems such as Geebee but Gidgia differs in that it has stripped margins and low breakaways which are absent in Geebee. Photo: DAFWA Stylised block diagram showing location of land units for the Gidgia land system (numbers on diagram represent land units in table below) Table of Gidgia 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 85 Stable plains: slopes less than 1%; sandy surfaces sparsely with ironstone gravel. Reddish, sandy to loamy soils, with variable amounts of lateritic gravels: Woodlands with dense patches of Acacia shrubs and Triodia bitextura Eucalyptus brevifolia alliance (1d); areas 1a. CSPP 60% HSPP 40%