01305naa a2200349 a 450000100080000000500110000800800410001910000160006024501850007626000090026152003110027065000150058165000120059665000130060865000190062165000190064065000090065965000220066865000270069065000230071765000180074065000330075865000090079165000170080065300130081765300110083065300310084165300110087270000200088370000130090377300390091616692602015-01-05       2001    bl uuuu     u00u1 u    #d1 aLEHMANN, J.  aOrganic matter stabilization in a xanthic ferralsol of the central Amazon as affected by single treesbchemical characterization of density, aggregate, and particle size fractions.  c2001  aThe objectives of this study were (i) to identify SOM pools which are sensitive to land-use changes, (ii) to evaluate the effects of different trees on SOM properties, and (iii) to characterize processes which are relevant to SOM stabilization in xantic ferralsols on the terra firme of the central Amazon.  ademography  adensity  aland use  amicroorganisms  aorganic matter  asoil  aCobertura do Solo  aDensidade Demográfica  aMatéria Orgânica  aMicrorganismo  aPropriedade Físico-Química  aSolo  aUso da Terra  aAmazonas  aBrasil  aChemicophysical properties  aManaus1 aCRAVO, M. da S.1 aZECH, W.  tGeodermagn. 99, p. 147-168, 2001.