SLASH-AND-CHAR IMPROVES

Tom Miles

Bio Brief: SLASH-AND-CHAR IMPROVES AMAZONIAN SOIL
Yvonne Baskin (e-mail: ybaskin@aol.com),Bozeman, Montana. Notes from the 2006 AAAS Annual Meeting

Archaeologists venturing into Amazonia in the 1870s noted anomalous patches of dark fertile soil amid the highly weathered yellow oxisols that dominate the region. Until recently, few believed these soils