Black Carbon Increases Cation Exchange Capacity in Soils Liang, B. ; Lehmann, J. ; Solomon, D. ; Kinyangi, J. ; Grossman, J. ; O'Neill, B. ; Skjemstad, J. O. ; Thies, J. ; Luizão, F. J. ; Petersen, J. ; Neves, E. G. Abstract Publication: Soil Science Society of America Journal Pub Date: September 2006 DOI: 10.2136/sssaj2005.0383 Bibcode: 2006SSASJ..70.1719L