Pan Dong-Rong, Liu Xiao-Ni, Shen Guo-Zhen, Xie Zong-Qiang, Luo Lu, Liu Lei
Ying Yong Sheng Tai Xue Bao. 2013 Dec;24(12):3361-6.
Based on the litterbag method, we explored the decomposition dynamics of the litter from the evergreen broad-leaved forests, the mixed evergreen and deciduous broad-leaved forests, and the deciduous broad-leaved forests along an altitude gradient in Mt. Shennongjia, Hubei, China. According to the decomposition rate, the decomposition of the litter could be divided into early stage (0-360 days) and later stage (361-720 days). With the increase of altitude, the mass loss rates of the litter from the three types of forests at the early stage were 2.62-4.08 times that of the later stage, the litter decomposition rates at the early stage were 2.71, 1.72 and 2.69 times of that at the later stage, respectively, and 95% decomposition of the litter needed 3.84, 4.54 and 4.16 years respectively. The decomposition rate at the later stage was significantly correlated with C/N, and the contents of N, hemicelluloses, cellulose and lignin.
基于凋落物袋法，我们在中国湖北神农架沿海拔梯度探究了常绿阔叶林、常绿落叶阔叶混交林和落叶阔叶林凋落物的分解动态。根据分解速率，凋落物的分解可分为早期（0 - 360天）和后期（361 - 720天）。随着海拔升高，三种森林类型凋落物在早期的质量损失率是后期的2.62 - 4.08倍，早期的凋落物分解速率分别是后期的2.71、1.72和2.69倍，凋落物95%分解分别需要3.84、4.54和4.16年。后期的分解速率与碳氮比、氮、半纤维素、纤维素和木质素的含量显著相关。
