1. Primary productivity of natural grass ecosystems of the tropics: A reappraisal

   • S. P. Long
   • E. Garcia Moya
   • D. O. Hall

   OriginalPaper Pages: 155 - 166

2. Why and how to estimate the cost of symbiotic N₂ fixation? A progressive approach based on the use of¹⁴C and¹⁵N isotopes

   • F. R. Warembourg
   • C. Roumet

   OriginalPaper Pages: 167 - 177

3. Plant- and soil related controls of the flow of carbon from roots through the soil microbial biomass

   • J. A. Van Veen
   • R. Merckx
   • S. C. Van De Geijn

   OriginalPaper Pages: 179 - 188

4. Carbon and nitrogen dynamics along the decay continuum: Plant litter to soil organic matter

   • Jerry M. Melillo
   • John D. Aber
   • Knute J. Nadelhoffer

   OriginalPaper Pages: 189 - 198

5. Influences of elemental interactions and pedogenic processes in organic matter dynamics

   • J. W. B. Stewart
   • C. V. Cole

   OriginalPaper Pages: 199 - 209

6. Cycling of nutrients from dying roots to living plants, including the role of mycorrhizas

   • E. I. Newman
   • W. R. Eason

   OriginalPaper Pages: 211 - 215

7. Activity of nitrifiers in relation to nitrogen nutrition of plants in natural ecosystems

   • J. W. Woldendorp
   • H. J. Laanbroek

   OriginalPaper Pages: 217 - 228

8. Nitrogen availability and nitrification during succession: Primary, secondary, and old-field seres

   • Peter M. Vitousek
   • Pamela A. Matson
   • Keith Van Cleve

   OriginalPaper Pages: 229 - 239

9. Role of soil animals in C and N mineralisation

   • T. Persson

   OriginalPaper Pages: 241 - 245

10. Inferring trophic transfers from pulse-dynamics in detrital food webs

    • H. W. Hunt
    • E. T. Elliott
    • D. E. Walter

    OriginalPaper Pages: 247 - 259

11. Perspectives on measurement of denitrification in the field including recommended protocols for acetylene based methods

    • James M. Tiedje
    • Stephen Simkins
    • Peter M. Groffman

    OriginalPaper Pages: 261 - 284

12. Statistical opportunities for analyzing spatial and temporal heterogeneity of field soils

    • D. R. Nielsen
    • Mohammad H. Alemi

    OriginalPaper Pages: 285 - 296

13. The use of nitrogen fertiliser in agriculture. Where do we go practically and ecolotically?

    • P. Newbould

    OriginalPaper Pages: 297 - 311