RT Report T1 Tropical Forest Ecosystems: A State-of-Knowledge Report - Natural Resources Research XIV A1 United Nations Environment Programme, A1 United Nations Educational, Scientific and Cultural Organization K1 tropical forest K1 ecosystem K1 biosphere K1 animal K1 water balance K1 soil K1 plantation K1 pest K1 disease K1 demography K1 health K1 epidemiology K1 population K1 nutrition K1 forest conservation K1 development K1 Africa K1 Americas K1 Oceania K1 Asia K1 Natural Resources SN 92-3-101507-9 YR 1978 FD 1978 LK https://wedocs.unep.org/handle/20.500.11822/30297 UL https://wedocs.unep.org/handle/20.500.11822/30297 NO The joint action of Unesco and UNEP in preparing this state-of-knowledge Report on tropical forest ecosystems can be seen as a natural outcome of the desire to provide better guidance to research that is vital for the satisfactory management of these ecosystems and to contribute to the training of specialists in the various scientific fields involved. Not only does this initiative follow logically from the priority accorded by Unesco and UNEP in their respective programmes to tropical forest ecosystems, it also provides another opportunity for Unesco to underline its preoccupation with the synthesis and diffusion of knowledge. For this reason the Report attempts to summarize the results of research undertaken over the past two decades, to point out gaps in knowledge and to sketch out the lines of future research. It is therefore intended as a tool for action while at the same time offering teachers and students a valuable source of information and documentation. DS UN Environment Document Repository RD Sep 21, 2026