The zone managed for intensive agricultural activities in South-Western Australia. Also known as the South West Agricultural Area or Clearing Line. This zone defines the easternmost extent of land cleared for agricultural purposes. Base data sets: Western Australian Land Information Authority - Captured from photographic interpretation of best available orthophotography at date of capture, dates range between 2007 and 2010. Scale of capture: 1:20,000

Land capability for grazing in the south west of Western Australia based on analysis and interpretation of the best available soil-landscape mapping dataset (DPIRD-027). This assessment covers the grazing of sheep and cattle on broadscale dryland (i.e. nonirrigated) pastures in agricultural areas (receiving an average annual rainfall more than 350 mm). Land capability refers to the ability of land to support a type of land use without causing damage. See DAFWA Resource Management Technical Report 298 for a description of the qualities assessed and the methodology involved. Capability ratings do not take into account factors such as the availability and quality of water supplies for irrigation or climatic risks such as frost or heat stress. Such factors need to be considered as a separate layer of information.

Generalised land use regions based on their primary agricultural land use.

Land capability for cropping in the south west of Western Australia based on analysis and interpretation of the best available soil-landscape mapping dataset (DPIRD-027). This assessment covers the production of rain-fed (non-irrigated) field crops under a cropping system that incorporates minimal tillage practices and stubble retention. This is a general assessment for common dryland crops grown over extensive areas (i.e. hundreds of hectares). It is best suited to the 350-600 mm rainfall zone where most extensive crops are grown (i.e. the wheatbelt), though may be extended to include some slightly higher rainfall areas. Crops included in this general assessment are wheat, barley, oats, narrow-leafed lupins, field peas, canola, chickpea and faba beans. Land capability refers to the ability of land to support a type of land use without causing damage. See DAFWA Resource Management Technical Report 298 for a description of the qualities assessed and the methodology involved. Capability ratings do not take into account factors such as the availability and quality of water supplies for irrigation or climatic risks such as frost or heat stress. Such factors need to be considered as a separate layer of information.

The Crop Variety Testing Areas dataset contains several layers used by DAFWA to make recommendations about cropping for distinct regions: Crop variety testing areas 2001 Crop variety testing agriculture zones Crop variety testing rainfall zones The dataset has been adjusted to give complete coverage of the WA Wheatbelt.

Spatial boundaries of over 175,000 agricultural dams in Western Australia. This product is an improved version of the ‘Farm dams of the South West agricultural region of WA (DPIRD-083)’ dataset. This new dataset has an increased spatial extent covering all of WA, in addition this new dataset includes a further 11,6000 dams and every dam has been re extracted at a higher resolution. This dataset was created with Deep Learning image segmentation of satellite data (Vivid 2.0), with further filtering of each feature with a Deep Learning binary classifier. The imagery that this data was derived from was mostly captured from 2018 to 2019. Preselection of sites was done by combining dam locations from ‘Farm dams of the South West agricultural region of WA (DPIRD-083)’, ‘DEA Waterbodies’ (https://www.dea.ga.gov.au/products/dea-waterbodies) and ‘Medium Scale Topo Water (Polygon) (LGATE-016)’ (https://catalogue.data.wa.gov.au/dataset/medium-scale-topo-water-polygon-lgate-016).

Land capability for annual horticulture in the south west of Western Australia based on analysis and interpretation of the best available soil-landscape mapping dataset (DPIRD-027). Land capability refers to the ability of land to support a type of land use without causing damage. See DAFWA Resource Management Technical Report 298 for a description of the qualities assessed and the methodology involved. The assessment for annual horticulture covers the production of irrigated horticultural crops from plants with short-term life cycles (typically completed within the period of a year). Crops include annual fruits (strawberries, melons, etc.), vegetables (e.g. potatoes, lettuce, cabbages, tomatoes, pumpkins, etc.), commercial turf production and cut flowers. The assumptions for the land use as assessed include: • crops are grown for commercial production • crops are shallow-rooted with most roots using only the top 50 cm of soil • crops are irrigated using sprinkler or trickle systems • mechanised cultivation occurs at least annually • fertilisers and herbicides, fungicides and/or pesticides are broadcast at least annually • crop rotation is practised • considers physical requirements only and ignores socio-economic factors. Capability ratings do not take into account factors such as the availability and quality of water supplies for irrigation or climatic risks such as frost or heat stress. Such factors need to be considered as a separate layer of information.

Soil-landscape mapping covering Western Australia at the best available scale (Version February 2019) attributed with the proportional allocation of WA Soil Groups to each map unit. It is a compilation of various surveys at different scales varying between 1:20,000 and 1:3,000,000.

Land capability for vineyards in the south west of Western Australia based on analysis and interpretation of the best available soil-landscape mapping dataset (DPIRD-027). Land capability refers to the ability of land to support a type of land use without causing damage. See DAFWA Resource Management Technical Report 298 for a description of the qualities assessed and the methodology involved. Capability ratings do not take into account factors such as the availability and quality of water supplies for irrigation or climatic risks such as frost or heat stress. Such factors need to be considered as a separate layer of information.

The potentially arable areas dataset is derived from a number of source datasets to provide an approximation of the area of land in Western Australia which is potentially available for agricultural purposes.