Litter decomposition of typical forests along an altitude gradient in Mt. Shennongjia, Hubei, China

• Published in: Ying yong sheng tai xue bao Vol. 24; no. 12; p. 3361
• Main Authors: Pan, Dong-Rong, Liu, Xiao-Ni, Shen, Guo-Zhen, Xie, Zong-Qiang, Luo, Lu, Liu, Lei
• Format: Journal Article
• Language: Chinese
• Published: China 01.12.2013
• Subjects: Altitude; China; Forests; Plant Leaves; Soil - chemistry; Trees
• ISSN: 1001-9332

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.