1. Landscape interactions among nitrogen mineralization, species composition, and long-term fire frequency

   • James S. Clark

   OriginalPaper Pages: 1 - 22

2. The role of ammonium and nitrate retention in the acidification of lakes and forested catchments

   • P. J. Dillon
   • L. A. Molot

   OriginalPaper Pages: 23 - 43

3. Methane emissions from fen, bog and swamp peatlands in Quebec

   • T. R. Moore
   • R. Knowles

   OriginalPaper Pages: 45 - 61

4. Spatial and temporal patterns in the hydrogeochemistry of a poor fen in northern Wisconsin

   • Luis E. Marin
   • Timothy K. Kratz
   • Carl J. Bowser

   OriginalPaper Pages: 63 - 76