ORIGIN AND BEHAVIOR OF DISSOLVED CHLORINE AND SODIUM IN BRAZILIAN RAIN-FOREST

Results for Cl and Na in rainfall, throughfall and stemflow at a rainf orest site located near Manaus (Central Amazonia, Brazil) cannot be sy stematically assigned to marine contribution in rainfall. Rather, the results show that 50% of the whole input (stemflow plus throughfall) f or Cl and 10% for Na are due to atmospheric deposition the remaining c omponent being derived from biological release. Thus Cl and Na cannot always be used as tracers of marine origin for atmospheric input for f orest environments far from the seashore. (C) 1998 Elsevier Science Lt d. All rights reserved.