Possible Uses of the Map: Useful for teachers and students who are interested in the global distribution of anthropic tension zones. Global modelers may be able to use the data for small scale analysis.
Source: Land Quality map, USDA-NRCS, Soil Survey Division, World Soil Resources, Washington D.C. Population density map, Tobler, W., V. Deichmann, J. Gottsegen, and K. Maloy. 1995. The global demography project. Technical Report TR-95-6. National Center for Geographic Information analysis. Univ. Santa Barbara, CA. 75 pp. Biodiversity hotspots, Myers, N. et al., 2000. Biodiversity hotspots for conseration priorities. Nature, 403:853-858.
Data Aggregation and Reliability: The map data is rasterized on a 2 minute grid cell.
Data Definitions: Three impact classes are defined based on land quality and population density. Biodiversity hotspots are outlined and labeled.
Data Disclaimer: Country boundaries are not authoritative.
Database Manager: Paul Reich, Geographer, World Soil Resources. Email: firstname.lastname@example.org