Document Type

Report

Publication Date

1994

Series Number

11

Keywords

Land resources, Land capability, Landforms, Soil types, Land use planning, Western Australia, Northam region (WA), Avon Valley region (WA), Wheatbelt region (WA)

Abstract

This report presents soil and landform mapping of about one million hectares in the Avon Valley and central wheatbelt of Western Australia at scale of 1:100,000. The study area spans from the lateritic plateau of the Darling Range to the broad, flat landscape of the wheatbelt and covers four broad physiographic regions: • the Zone of Ancient Drainage; • the Zone of Rejuvenated Drainage; • the West Kokeby Zone; and • the Darling Range Zone. Twenty-five soil landscape units were identified and mapped on the accompanying map sheets. A soil landscape unit is an area of land that occurs in a recognisable position in the landscape and contains a specific set of soil types. The landform, location, parent material, native vegetation and soil types of each soil landscape unit are described within the text. Forty-two soil types were identified and described and a brief comment made on their capability for agriculture. Section 4.1 rates the capability of these soil types to support common agricultural land uses and lists their limitations. The area of each soil landscape unit and each soil type were calculated. An estimate of the percentage occurrence of individual soil types within each soil landscape unit is given. The major use of this study will be regional land use planning. The soil landform maps have been interpreted to produce land degradation hazard maps and land capability maps for common land uses.

Maps

Maps are not included as part of the complete document download. If this report contains a map, it will be available in the individual parts list below.

No 11 Land Resources - Part I.pdf (10299 kB)
Part I - Northam Report

No 11 Land Resources - Part II.pdf (10120 kB)
Part II - Northam Report

No 11 Land Resources - Part III.pdf (6617 kB)
Part III - Northam Report

Land Resources Series 11 Northam - Figures 8 & 9.pdf (8699 kB)
Figures 8 and 9 from Northam Report

Land Resources Series 11 Northam - Figures 10 & 11.pdf (10179 kB)
Figures 10 and 11 from Northam Report

Land Resources Series 11 Northam - Figure 12.pdf (4934 kB)
Figure 12 from Northam Report

Land Resources Series 11 Northam - Figures 13 & 14.pdf (10294 kB)
Figures 13 and 14 from Northam Report

Land Resources Series 11 Northam - Figures 15 & 16.pdf (10719 kB)
Figures 15 and 16 from Northam Report

Land Resources Series 11 Northam - Figures 17 & 18.pdf (10937 kB)
Figures 17 and 18 from Northam Report

Land Resources Series 11 Northam - Figures 19 & 20.pdf (12054 kB)
Figures 19 and 20 from Northam Report

NORTHAM_REGION_sheet 1 Cunderdin.pdf (440 kB)
Northam region Map sheet 1 of 3

NORTHAM_REGION_sheet 2 York.pdf (1036 kB)
Northam region Map sheet 2 of 3

NORTHAM_REGION_sheet3 Northam.pdf (666 kB)
Northam region Map sheet 3 of 3

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