Litterfall, nutrient return, and leaf-litter decomposition in four plantations compared with a natural forest in subtropical China Yu Sheng Yang, Jian Fen Guo, Guang Shui Chen, Jin Sheng Xie, Li Ping Cai and Peng LinAnn. For. Sci., 61 5 (2004) 465-476DOI: https://doi.org/10.1051/forest:2004040