Stylised block diagram showing location of land units for the St George land system (numbers on diagram represent land units in table below) Table of St George land system land units. * Numbers in brackets refer to soil – family or vegetation community/alliance in on lands of the West ‘General report Kimberley area, (Speck et al. 1970); + Pasture types described in Appendix 1; WA’ 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. Approx. Pasture Unit area Landforms Soils* Vegetation* type+ (%) Rocky plateaux and hillslopes: boulder-strewn plateau surfaces with Open spinifex with benched scattered stunted trees escarpments grading into open and hillslopes woodlands. Triodia Mainly rock HSHP up to 80%, and intermedia and T. outcrop with 50% 1 58 with basal pungens communities some SSPP scree slopes (55, 57) and Corymbia laterite. 50% up to 45%, dichromophloia and lower hillslopes Adansonia gregorii to 10% and alliances (11, 31); also 1.6m long, 17. dissected up to 9 m, with laterite exposures locally. Woodlands (pindan) with Sandplains: Probably red prominent Acacia tall up to 1.6m in sands of shrub layer and Triodia extent, slopes variable 2 19 bitextura - Chrysopogon PINP less than 1%, depth: spp. C. dichromophloia - attaining 2% Cockatoo Adansonia gregorii locally. family (7). alliances (10, 31). Sandplains Mainly with run-on: mottled Ribbon grass grassland up to 1.6km yellowish with scattered trees and 3 14 RGRP wide and sandy soils: shrubs. Chrysopogon extending Tableland spp. community (49). downslope for family (5). up to 3.2km;
Stylised block diagram showing location of land units for the St George land system (numbers on diagram represent land units in table below) Table of St George 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 58 Rocky plateaux and hillslopes: boulder-strewn plateau surfaces with benched escarpments and hillslopes up to 80%, and with basal scree slopes up to 45%, lower hillslopes to 10% and 1.6m long, dissected up to 9 m, with laterite exposures locally. Mainly rock outcrop with some laterite. Open spinifex with scattered stunted trees grading into open woodlands. Triodia intermedia and T. pungens communities (55, 57) and Corymbia dichromophloia and Adansonia gregorii alliances (11, 31); also 17. HSHP 50% SSPP 50% 2 19 Sandplains: up to 1.6m in extent, slopes less than 1%, attaining 2% locally. Probably red sands of variable depth: Cockatoo family (7). Woodlands (pindan) with prominent Acacia tall shrub layer and Triodia bitextura - Chrysopogon spp. C. dichromophloia - Adansonia gregorii alliances (10, 31). PINP 3 14 Sandplains with run-on: up to 1.6km wide and extending downslope for up to 3.2km; Mainly mottled yellowish sandy soils: Tableland family (5). Ribbon grass grassland with scattered trees and shrubs. Chrysopogon spp. community (49). RGRP