Litter decomposition of typical forests along an altitude gradient in Mt.Shennongjia, Hubei, China
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.
国家科技期刊平台
NSTL
万方数据
维普
