ABSTRACT
Three-dimensional modelling of the rural environment is being carried out in response to identifiable needs for greater understanding, and the communication, of processes of change in land use or form (Kraak, 1999). These needs operate at different levels of detail, including broad impressions of gross change, such as climate variables at a continental scale (Kesteven and Hutchison, 1996) or nitrate concentrations at the scale of the water catchment or estuary (e.g. Mitasova et al., 1996) or the siting of individual objects such as wind turbines, and can represent a complex set of interactions.
