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基于浙江省2015年国有林场森林资源调查数据,运用主成分分析方法,分析了总经营面积、林地面积占比、林地利用率、森林总蓄积、单位面积森林蓄积、森林覆盖率、公益林面积、木材产量、竹材产量、自然保护区面积、风景名胜区面积、造林面积占比12个森林资源因子的相关关系,并将12个因子降为代表森林资源特征的5个主分量;基于5个主分量采用系统聚类法,将100个国有林场划分为9类。
Based on the survey data of forest resources of state-owned forest farms in Zhejiang Province in 2015, using principal component analysis, this paper analyzed the total management area, the proportion of forest area, the utilization rate of forestland, the total forest volume, the forest area per unit area, the forest coverage, Timber production, bamboo production, nature reserve area, scenic area and afforestation area accounted for 12 forest resources factors, and 12 factors were reduced to 5 main components representing the characteristics of forest resources. Based on 5 main components Using the method of cluster analysis, 100 state-owned forest farms were divided into 9 categories.