Part 1 Background: global distribution of the major soils and land cover types; exchange of greenhouse gases between terrestrial ecosystems and the atmosphere; estimating the effect of changing land use on transpiration and evaporation; the effect of changing land cover on the surface energy balance; remote sensing techniques for monitoring of vegetation, and for estimating evapotranspiration and phytomass production. Part 2 Soils: soil processes and properties involved in the production of greenhouse gases, with special relevance to soil taxonomic systems, N.Van Breemen and T.C.J.Feijtel; geographic quantification of soils and changes in their properties, W.G.Sombrock. Part 3 Sources and sinks of greenhouse gases: modelling global terrestrial sources and sinks of CO2 with special reference to soil organic matter, G.Esser; biotic sources of nitrous oxide (N2O) in the context of the global budget of nitruous oxide, M.M.Umarov; soil and land use related sources and sinks of methane (CH4) in the context of the global methane budget, H.Schutz et al. Part 4 Methods: gas flux measurement techniques with special reference to techniques suitable for measurements over large ecologically uniform areas, A.R.Mosier; analysis of vegetation changes using satellite data, F.Blasco and F.Achard; global data bases for evaluating trace gas sources and sinks, E.Matthews. Part 5 Partitioning of solar energy: the effect of land use change on net radiation and its partitioning into heat fluxes, H.J.Bolle; quantification of regional dry and wet canopy evaporation, A.Henderson-Sellers and A.J.Pitman. Part 6 Extended abstracts: soils; greenhouse gas fluxes, carbon dioxide; greenhouse gas fluxes, methane; greenhouse gas fluxes, nitrous oxide; partitioning of solar energy; soil moisture.