Net primary production of a savanna grassland in Nairobi National Park, Kenya, was determined from 1984 to 1994 by monitoring monthly dynamics of live biomass and dead matter, above and below ground, together with monthly litter bag estimates of decomposition rates above and below ground. The method for calculating net primary production accounted for simultaneous growth and death, and carbon ... flows to all trophic levels. Work was carried out under the United Nations Environment Programme (UNEP) Project on "Primary productivity of grass ecosystems of the tropics" and continued under subsequent UNEP and UK-ODA sponsored international projects. Climate data for this site are also available: see Any Other Relevant Information in section 11 of this document. More information on the entire Net Primary Production Project can be found at the NPP homepage.