1. Soil-atmosphere exchange of CH₄, CO₂, NO_x, and N₂O in the Colorado shortgrass steppe under elevated CO₂

   • A.R. Mosier
   • J.A. Morgan
   • D.G. Milchunas

   OriginalPaper Pages: 201 - 211

2. Response of soil CO₂ efflux to water manipulation in a tallgrass prairie ecosystem

   • Xiaozhong Liu
   • Shiqiang Wan
   • Yiqi Luo

   OriginalPaper Pages: 213 - 223

3. Two-dimensional growth of a root system modelled as a diffusion process. I. Analytical solutions

   • P. de Willigen
   • M. Heinen
   • M. Van Noordwijk

   OriginalPaper Pages: 225 - 234

4. Effects of atmospheric deposition, soil pH and acidification on heavy metal contents in soils and vegetation of semi-natural ecosystems at Rothamsted Experimental Station, UK

   • L. Blake
   • K.W.T. Goulding

   OriginalPaper Pages: 235 - 251

5. Enhancing the early performance of the leguminous shrub Retama sphaerocarpa (L.) Boiss.: fertilisation versus Rhizobium inoculation

   • Fernando Valladares
   • Pedro Villar-Salvador
   • Francisco I. Pugnaire

   OriginalPaper Pages: 253 - 262

6. Contrasting seasonal patterns of fine root production for blue oaks (Quercus douglasii) and annual grasses in California oak woodland

   • Xiaomei Cheng
   • Caroline S. Bledsoe

   OriginalPaper Pages: 263 - 274

7. Decomposability of C3 and C4 grass litter sampled under different concentrations of atmospheric carbon dioxide at a natural CO₂ spring

   • D. J. Ross
   • K. R. Tate
   • H. Clark

   OriginalPaper Pages: 275 - 286

8. Copper sorption and accumulation by the extraradical mycelium of different Glomus spp. (arbuscular mycorrhizal fungi) isolated from the same polluted soil

   • C. Gonzalez-Chavez
   • Jan D'Haen
   • J.C. Dodd

   OriginalPaper Pages: 287 - 297

9. Nitrogen fertilization alters the functioning of arbuscular mycorrhizas at two semiarid grasslands

   • Lea Corkidi
   • Diane L. Rowland
   • Edith B. Allen

   OriginalPaper Pages: 299 - 310

10. Arsenic uptake and accumulation in rice (Oryza sativa L.) irrigated with contaminated water

    • Md. Joinal Abedin
    • J. Cotter-Howells
    • Andy A. Meharg

    OriginalPaper Pages: 311 - 319

11. NaCl and Na₂SO₄ alter responses of jack pine (Pinus banksiana) seedlings to boron

    • Kent G. Apostol
    • Janusz J. Zwiazek
    • Michael D. MacKinnon

    OriginalPaper Pages: 321 - 329

12. Decomposition and nutrient release by green manures in a tropical hillside agroecosystem

    • J. G. Cobo
    • E. Barrios
    • R. J. Thomas

    OriginalPaper Pages: 331 - 342

13. Ecophysiological significance of chlorophyll loss and reduced photochemical efficiency under extreme aridity in Stipa tenacissima L.

    • L. Balaguer
    • F. I. Pugnaire
    • E. Manrique

    OriginalPaper Pages: 343 - 352