Image #BDK-1: Experiment to study the effect of UV-b solar radiation on litter decomposition at the Badkhyz grassland site, Turkmenistan. (Prof. Leonid Rodin, Komarov Botanical Institute, Leningrad, is photographing litter samples under a shade screen. Experiments at Badkhyz and elsewhere demonstrated considerable influence of solar radiation on decomposition rate. Photograph taken October 1978 by Dr. R. Zlotin, Indiana University, Bloomington, IN, USA).