Abstract: Concentrations of major nutrients in stemflow and throughfall in evergreen broad-leaved forest and Cunninghamia lanceolata plantation forest were analysed. The results showed that concentrations of the nutrients in both stemflow and throughfall changed seasonally. The nutrients were enriched in stemflow and throughfall, and the enrichment of nutrients in stemflow was higher than that in throughfall. Among all analsyed nutrients, the concentration was found highest for K⁺,Ca²⁺ and NO₃^-, middle for Na⁺ and Mg²⁺, and lowest for HPO₄^2-. Compared with throughfall, stemflow was significantly acidified. In addition, the nutrient characteristics of stemflow for different tree species differed significantly. The total concentration of nutrients in stemflow was found highest in Cinnamomum camphora and Liquidambar formosana, middle in Machilus pauhoi, and lowest in Cyclobalanopsis glauca and Castanopsis hystrix.

Key words: Evergreen broadleaved tree, Deciduous broadleaved tree, Nitrogen, Phosphorus, Seasonal change, Nutrient retranslocation