Tilia amurensis Branch Decomposition in a Korean Pine Broad-leaved Mixed Forest on Changbai Mountain
长白山红松阔叶混交林紫椴枝条的分解实验

This paper analyzed the process of Tilia amurensis branch decomposition in Korean pine broad-leaved mixed forest on North Slope of Changbai Mountain. The results showed that the decomposition rates are closely related to the vegetation types, altitude, accumulated temperature of growing season at each experiment plot. The relationships between the factors of remaining quantity (y) and the decomposition age (x) on the experiment followed the exponent function Y=e -kx. The decomposition (-k) ranged from -0.168 to -0.127, and -0.102 and -0.094, respectively in Korean pine broad-leaved mixed forest, Korean pine-spruce mixed forest, Betula ermanii conifer forest and Betula ermanii forest. The experiment also indicated that proper moisture and shading have positive effects on the branch decomposition in the clear-cutting area of Korean pine broad-leaved mixed forest on Changbai Mountain and that the decomposition rate depends on the temperature condition of different elevation vegetation types on Changbai Mountain, especially accumulated temperature in growing season.