译 名：
STUDY ON THE STRUCTURE, FUNCTION AND SUCCESSION OF THE FOUR TYPES IN NATURAL SECONDARY FOREST
作 者：
Chen Da-ko Zhou Xiao-feng Zhao Hui-xun Wang Yi-hong Jing Yong-yan
摘 要：
There is a large area of natural secondary forest in Heilungjiang Province. It is one of the very important resources in national economy. For a few years, we have devoted ourselves to study the structure, function and succession in natural secondary forest. Our aim is to provide the fundamental methods for forest management. This paper deals with synecologic characteristics, biomass and succession of the four types in natural secondary forest.The synecologic characteristics of forest types have been investigated, such as: the general characters of community, the life form of plants and the spectra of life form (according to Raunkiaer System). the stratification of community, plant components in early spring and rootsystem of trees.In the second part, the biomass of the four types in natural secondary forest is reported. The results of our investigation and measurement have showed that the wood production is directly proportionalto the leaf area in a non-closed stand. (Refer to the following table)Finally, the dynamic tendency of succession in natural secondary forest has been studied by means of the "stratified frequence method". The main conclusions obtained are summarized as follows:1. According to the process of natural convergence, the development of three forest types (exclusive of Q. mongolica Ass.) tending toward hardwood dicidious forest. Owing to the artificial convergence, Quercus mongolica Ass. keeps to relative stable equilibrium——Disclimax.2. Fraxinus mandshrica is a dominant in the process of forest regeneration.
