00749nam a2200181 a 450000100080000000500110000800800410001910000170006024500790007726000970015630000090025352002160026265300200047870000170049870000160051570000170053170000190054810245792015-03-17       2004    bl uuuu     u00u1 u    #d1 aHEDIN, L. O.  aHydrologic nitrogen losses from tropical soilsbpatterns and implications.  aIn: CONFERÊNCIA CIENTÍFICA DO LBA., 3., 2004, Brasília, DF. Anais... Brasília: LBAc2004  a1 p.  aTropical forest soils often tend to be rich in nitrogen but poor in phosphorus. We have measured hydrologic nitrogen and phosphorus losses from soils across a soil fertility gradient in the central Amazon basin.  aTropical forest1 aMCGRODDY, M.1 aHOULTON, B.1 aMORAN, E. F.1 aBATISTELLA, M.