概述本世纪七十年代,日本森林数学家铃木太七先生,通过对同龄林面积随时间的变化规律的分析研究,提出了林龄空间的概念,并应用拓朴学中的不动点定理,证明了广义法正林的存在,使森林经理进入了一个崭新的时代。特别是林龄空间概念的建立,对我们研究森林来说,将是一个很大的启发。但是,仅从森林面积随时间的变化方面来研究森林系统是远远不能满足要求的。因为, In the seventies of this century, Japanese forest mathematician Takuya Suzuki, through the analysis of the law of forest area change with age over time, put forward the concept of forest age space and apply the fixed point theorem in topography to prove The existence of General Law Fa Lin has brought the forest manager into a new era. In particular, the concept of space for the establishment of forest age, for our study of the forest, it will be a great inspiration. However, it is far from satisfying to study only the forest system in terms of changes over time in the area of ​​forest. because,