The computer programmes on this CD-ROM display and export different biophysical themes ranging from specific soil constraints and climatic parameters to land degradation status at national and/or global level. These outputs are linked in tabular format with the population and population density in each of the biophysical zones identified. [System requirements: Pentium PC with Windows 9x/ /2000/NT; at least 64 MB of RAM and 15" or larger monitor wit with a resolution of 1024x768 pixels and a colour palette of 65536 colours]