Maximum rooting depth of vegetation types at the global scale Canadell, J. ; Jackson, R. B. ; Ehleringer, J. B. ; Mooney, H. A. ; Sala, O. E. ; Schulze, E. -D. Abstract Publication: Oecologia Pub Date: December 1996 DOI: 10.1007/BF00329030 Bibcode: 1996Oecol.108..583C