Mapping Land Units within Land Systems in Central Queensland Using a Fuzzy Expert System and Terrain Models

In much of the world, large scale soil maps which would better inform land use decisions are not available. The major impediment to collection of large scale data is the cost of field survey over large areas. One promising approach to increase the efficiency of soil survey is soil-landscape modelling. Soil-landscape models formalise relationships between soil attributes and other environmental variables, particularly landform which may be modelled with terrain data. Experienced soil surveyors implicitly use known and derived relationships between soils and landforms to produce useful maps. An explicit representation of these relationships between soils and landforms could be applied predictively and spatially.