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绪言为了制订符合于营林与森工利益的采伐方式,必须研究:成林的乔木树种主要林学特性;林分年龄结构、林木组成与结构;林冠下的、火烧迹地上的和不同采伐方式的采伐迹地上的森林更新的趋向与特性;采伐后森林植物环境的变化;确定不同条件的采伐迹地上的土壤抗蚀程度。此外,还应研究不同采伐方式对下木、草本地被物及枯枝落叶层的影响及其它一系
INTRODUCTION In order to develop harvesting methods that are in line with the interests of forests and forest workers, it is necessary to study: the main forest characteristics of the tree species afforeted; the age structure of the forest, the composition and structure of the tree species; the canopy decay, Trends and characteristics of forest renewal on deforested land; Changes of forest plant environment after harvesting; Determination of soil resistance to deforestation on different conditions. In addition, we should also study the different harvesting methods on the next wood, herbs and litter layer and the impact of other series