Phosphorus biogeochemistry in soils and waters: implications and constrains for sustainable development
Co-Convener: Luisella Celi 
Poster Programme
 / Attendance Wed, 05 May, 17:30–19:00  / Halls X/Y

Phosphorus is an essential element for life, and its availability to plant or algae may constrain the ecosystem productivity. The geochemical cycle of P limits its bioavailability in soil and only a small fraction of applied P as fertilizers may be uptaken by plants. On the other hand, excessive P rates promote P enrichment of soil, increasing the risk of losses both by leaching and runoff with transfer from soil to surface and ground waters. This means that P may be seen as an "environmental problem" in rich countries where soils have received excessive P applications and as "agronomic problem" in poor countries where the agricultural productivity is usually limited by P availability.

Key words for the description

Organic and inorganic P cycle in soils and aquatic systems.
New tools in the study of organic and inorganic P forms in soils and aquatic systems.
Linking P cycle and ecosystem productivity; agronomic and environmental implications.
P availability in soils as a tool for a sustainable fertilizer use.
P release potential in soils as related to P forms: tools for the identification of critical source areas in catchments.
Scientific forums and proposals to control environmental constrains derived from agricultural P: the International Phosphorus Workshop and the COST actions 832 and 869.

Public information: Poster Session

Display time: Wednesday, 05 May, 08:00–19:30
Attendance Time: Wednesday, 05 May, 17:30–19:00
Place: Halls X/Y

Short oral session

Splinter meeting 1.61
Place: Room SM 6
Attendance time: Tuesday, 04 May, 10:30-12:00

10:30-10:40 General presentation by the chairman of the session: a general view of contributions to the session

10:40-10:55. The phosphorus transfer from soil to water as affected by the agronomic management
Teresa Borda, Luisella Celi, Else Buenemann, Astrid Oberson, Emmanuel Frossard, and Elisabetta Barberis

10:55-11:10. The role of tectonic uplift, climate and vegetation in the long-term terrestrial phosphorous cycle
Corina Buendia, Axel Kleidon, and Amilcare Porporato

11:10-11:25. Phosphorus and Nitrogen losses from a grassland site on a heavy clay soil in a fluvial plain in the Netherlands
Caroline van der Salm, Wim J. Chardon, and Gerwin F. Koopmans

11:25-11:40. The impact of agricultural soil erosion on soil phosphorus cycling
John Quinton, Gerard Govers, Kristof van Oost, and Richard Bardgett

11:40-11:55. Temporal dynamics of available and microbial phosphorus and organic phosphorus mineralization in a grassland soil
Frank Liebisch, Fabrizio Keller, Emmanuel Frossard, Olivier Huguenin-Elie, Astrid Oberson, and Else Bünemann

11:55-12:00. Conclusions – appointment for poster session