The 2005 Forest and Rangeland Condition Indicator Model is a set of classification trees for forest and rangeland condition indicators at the national scale. This report documents the development of the database and the nonparametric statistical estimation for this analytical structure, with emphasis on three special characteristics of condition indicator production processes: (1) the inability of humans to completely control ecological systems; (2) the lack of a theoretical basis for specific relational functional forms, suggesting the need for a highly flexible model structure; and (3) the broadscale spatial nature of the problem (and data). The resolution of data deficiencies is also examined. Finally, the model projections themselves are presented and discussed using national-scale maps.(source abstract).
Articles, citations, reports, websites, and multimedia resources focused on rangeland ecology, management, restoration, and other issues on American rangelands.