1. Obituary

   • Robert W. Howarth

   OriginalPaper Pages: 1 - 2

2. The humus layer determines SO₄²⁻ isotope values in the mineral soil

   • Reiner Giesler
   • Carl-Magnus Mörth
   • Peter Torssander

   OriginalPaper Pages: 3 - 20

3. Modelling the effects of climate change on an acidic upland stream

   • Christopher D. Evans

   OriginalPaper Pages: 21 - 46

4. Topsoil organic carbon storage of China and its loss by cultivation

   • Guohan Song
   • Lianqing Li
   • Qi Zhang

   OriginalPaper Pages: 47 - 62

5. Identifying calcium sources at an acid deposition-impacted spruce forest: a strontium isotope, alkaline earth element multi-tracer approach

   • Thomas D. Bullen
   • Scott W. Bailey

   OriginalPaper Pages: 63 - 99

6. Contribution of phytoliths to the suspended load of biogenic silica in the Nyong basin rivers (Cameroon)

   • Lise Cary
   • Anne Alexandre
   • Jean-Jacques Braun

   OriginalPaper Pages: 101 - 114

7. Terrestrial vegetation and the seasonal cycleof dissolved silica in a southern New Englandcoastal river

   • Robinson W. Fulweiler
   • Scott W. Nixon

   OriginalPaper Pages: 115 - 130