Image #SCR-3: Aerial view of the terrain near the San Carlos de Rio Negro tropical forest site, Venezuela. (A recently abandoned agricultural site is visble near the river, and a recently cut and burned site near the centre of the photograph. Both sites are on an Oxisol hill. A lower area, supporting caatinga forest on Spodosol, lies to the left and bottom of the picture. Photograph reproduced by kind permission of Prof. C.F. Jordan, University of Georgia, USA).