1. Preface

   EditorialNotes Pages: 135 - 135

2. Light dependent sediment-water exchange of dissolved reactive phosphorus and silicon in a producing microflora mat

   • P. Kelderman
   • H. J. Lindeboom
   • J. Klein

   OriginalPaper Pages: 137 - 147

3. The calcium- and iron bound phosphate phase diagram

   • H. L. Golterman

   OriginalPaper Pages: 149 - 151

4. Experimental studies on some factors influencing phosphorus solubilization in connexion with the drawdown of a reservoir

   • André Fabre

   OriginalPaper Pages: 153 - 158

5. Seasonal changes in sediment and water chemistry of a subtropical shallow eutrophic lake

   • W. F. DeBusk

   OriginalPaper Pages: 159 - 167

6. Degradation of softwood [¹⁴C lignin] lignocelluloses and its relation to the formation of humic substances in river and pond environments

   • Eliane Fustec
   • Eric Chauvet
   • Michèle Escautier

   OriginalPaper Pages: 169 - 176

7. Nitrogen dynamics in a eutrophic lake sediment

   • K. R. Reddy
   • R. E. Jessup
   • P. S. C. Rao

   OriginalPaper Pages: 177 - 188

8. The nitrogen cycle in shallow water sediment systems of rice fields. Part 1: The denitrification process

   • F. Minzoni
   • C. Bonetto
   • H. L. Golterman

   OriginalPaper Pages: 189 - 202

9. The nitrogen cycle in shallow water sediment systems of rice fields Part II: Fractionation and bio-availability of organic nitrogen compounds

   • Carlos Bonetto
   • F. Minzoni
   • H. L. Golterman

   OriginalPaper Pages: 203 - 210

10. The nitrogen cycle in shallow water sediment systems of rice fields Part III: The influence of N-application on the yield of rice

    • H. L. Golterman
    • C. Bonetto
    • F. Minzoni

    OriginalPaper Pages: 211 - 217