1. Inorganic nitrogen and microbial biomass dynamics before and during spring snowmelt

   • Paul D. Brooks
   • Mark W. Williams
   • Steven K. Schmidt

   OriginalPaper Pages: 1 - 15

2. Peat characteristics and groundwater geochemistry of calcareous fens in the Minnesota River Basin, U.S.A.

   • James E. Almendinger*
   • Jeanette H. Leete

   OriginalPaper Pages: 17 - 41

3. Carbon pools and fluxes along an environmental gradient in northern Arizona

   • Richard T. Conant
   • Jeffery M. Klopatek
   • Carole C. Klopatek

   OriginalPaper Pages: 43 - 61

4. Nitrogen fixation and the mass balances of carbon and nitrogen in ecosystems

   • John Pastor
   • Dan Binkley

   OriginalPaper Pages: 63 - 78

5. Effects of two common macrophytes on methane dynamics in freshwater sediments

   • Frans-Jaco W.A. Van Der Nat
   • Jack J. Middelburg

   OriginalPaper Pages: 79 - 104