Subsurface Acidification risk mapping derived from land quality attribution associated with soil-landscape mapping at the subsystem/phase level. See Resource Management Technical Report 298, Section 2.14, Department of Agriculture, 2005. This version updates two previous versions (metadata dates 08/09/2003 and 29/04/2004).

Water Erosion risk mapping derived from land quality attribution associated with soil-landscape mapping at the subsystem/phase level. See Resource Management Technical Report 298, Section 2.15, Department of Agriculture, 2005.

Soil subsurface acidity is a land quality which may impact upon a variety of agricultural land uses and is based on analysis and interpretation of the best available soil-landscape mapping dataset (DPIRD-027). See DAFWA Resource Management Technical Report 298 for a description of the qualities assessed and the methodology involved.

Salinity risk mapping derived from land quality attribution associated with soil-landscape mapping at the subsystem/phase level. See Resource Management Technical Report 298, Section 2.8, Department of Agriculture, 2005. This version updates two previous versions (metadata dates 08/09/2003 and 29/04/2004).

Waterlogging Risk mapping derived from land quality attribution associated with soil-landscape mapping at the subsystem/phase level. See Resource Management Technical Report 298, Section 2.20, Department of Agriculture, 2005. This version updates two previous versions (metadata dates 08/09/2003 and 29/04/2004).

Water Repellence risk mapping derived from land quality attribution associated with soil-landscape mapping at the subsystem/phase level. See Resource Management Technical Report 298, Section 2.20, Department of Agriculture, 2005.

Flood risk mapping derived from land quality attribution associated with soil-landscape mapping at the subsystem/phase level. See Resource Management Technical Report 298, Section 2.2, Department of Agriculture, 2005. This version updates two previous versions (metadata dates 08/09/2003 and 29/04/2004).

Soil surface acidity is a land quality which may impact upon a variety of agricultural land uses and is based on analysis and interpretation of the best available soil-landscape mapping dataset (DPIRD-027). See DAFWA Resource Management Technical Report 298 for a description of the qualities assessed and the methodology involved.

Soil subsurface alkalinity is a land quality which may impact upon a variety of agricultural land uses and is based on analysis and interpretation of the best available soil-landscape mapping dataset (DPIRD-027). See DAFWA Resource Management Technical Report 298 for a description of the qualities assessed and the methodology involved.

An index of the risk of soil acidification based only on soil characteristics and current land use has been calculated using the following indicators:Lime requirements (LR, 5 classes) – calculated using the current pH and buffering capacity (see Figure 2.4).The likely NAAR – estimated using the classes defined by the provisional NAAR ranking (see Table 2.3) and mapped using the Australian Land Use and Management Classification (Table 2.4) (5 classes ) (see Figure 2.5) This spatial layer is the result of combining these two indices according to Table 2.4.Soil acidification is likely to be a problem in areas with a high risk ranking. This is useful for framing priorities for interventions but the map provides no information on the effectiveness of current land management. This important consideration is much harder to determine. Risk of Acidification values: 1 = Low, 2 = Medium, 3 = High risk