Deposition and Forest Canopy Interactions of Airborne Nitrate

  • S. E. Lindberg
  • G. M. Lovett
  • K-J. Meiwes
Part of the NATO ASI Series book series (volume 16)


Preliminary data suggest that atmospheric deposition of nitrate is generally higher to West German forests than to forests in the United States; however, many of these data are based only on bulk deposition. In two detailed studies of deposition processes in high- and low-elevation forests in the eastern United States, we quantified total wet plus dry deposition of nitrate using several approaches. Our data suggest that nitrate deposition by rain, particles, vapours, and cloud droplets significantly exceeds nitrate input measured in bulk deposition; hence, we cannot accurately determine current levels of input to many forests. Using data on the behaviour of deposited nitrate in the canopies of the two forests studied in detail, we estimated the magnitude of nitrate deposition not collected by bulk samplers used routinely in the Solling forest in West Germany. The results suggest that the unmeasured flux exceeds that measured as bulk deposition by factors of 1.3 to 6, depending on different assumptions. Calculation of deposition velocity indicates that this unmeasured fraction could be accounted for by dry deposition of nitric acid vapour or by deposition of fog or cloud droplets.


Deposition Velocity Cloud Droplet Atmos Environ Bulk Deposition Bulk Precipitation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1987

Authors and Affiliations

  • S. E. Lindberg
    • 1
  • G. M. Lovett
    • 1
  • K-J. Meiwes
    • 2
  1. 1.Environmental Sciences DivisionOak Ridge National LaboratoryOak RidgeUSA
  2. 2.Institute of Soil Science and Forest NutritionUniversity of GöttingenGöttingenWest Germany

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