The second component of the model provides a regional-level assessment of the
impacts of these land-use changes on environmental and socio-economic systems.
Indicators related to food security (represented by agricultural land base availability and
land production potential), water quality, wildlife habitat and economic production and
costs are developed and used for the assessment of different scenarios. The micro-scale
and regional-scale land-use results from the land-use evolution component, as well as from
the environmental and economic analysis are used in the calculation of these sustainability
indicator values. An aggregated sustainability index is also developed and used for
comparison of different scenarios with respect to their overall impacts on sustainability.