The stemflow and its element content were studied,meanwhile comparisons were made among five main tree species in the deciduous broad leaf mixed forest in this paper. The relationships between gross fainfall and stemflow in the five main tree species and in the whole forest were analyzed in 82 precipitation events in the growth seasons of 1993 and 1994,concentration and amount of seven chemical elements in the gross precipitation and stemflow were also analyzed. The results showed that the concentrations o...