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辽宁省湾甸子实验林场属我省天然次生林区,从60年代开始,对次生林进行了改造,通过栽针保阔、幼抚留树等措施诱导成大面积的人工阔叶红松林。据初步统计,该类型林分郁闭成林面积达70多ha。目前,这些林分林龄已达20多年,长势良好,成为重要的森林后续资源。但对这些林分的结构类型、分布和树种组成及生产力等均未做过调查研究。本文应用模糊聚类分析方法,对该场人工阔叶红松林的结构类型及内部特征进行了研究,以便为经营好这些林分提供科学依据。
Wandianzi Experimental Forest Farm in Liaoning Province is a natural secondary forest in our province. Since the 1960s, the secondary forest has been reformed, and artificial broad-leaved Korean pine forests have been induced through measures such as planting broad-leaved and young leaves to keep young trees. According to preliminary statistics, this type of canopy stands canopy forest area of more than 70 ha. At present, these stands have reached the age of more than 20 years and are in a good condition and have become important forest follow-up resources. However, no research has been done on the type of structure, distribution, tree species composition and productivity of these stands. In this paper, the fuzzy cluster analysis method was used to study the structure type and internal characteristics of the artificial broad-leaved Korean pine forest in order to provide a scientific basis for the management of these stands.