1. Fluxes and transformations of nitrogen in a high-elevation catchment, Sierra Nevada

   • Mark W. Williams
   • Roger C. Bales
   • John M. Melack

   OriginalPaper Pages: 1 - 31

2. Retention and leaching losses of atmospherically-derived nitrogen in the aggrading coastal watershed of Waquoit Bay, MA

   • Kate Lajtha
   • Brad Seely
   • Ivan Valiela

   OriginalPaper Pages: 33 - 54

3. Factors determining soil microbial biomass and nutrient immobilization in desert soils

   • Antonio Gallardo
   • William H. Schlesinger

   OriginalPaper Pages: 55 - 68