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本文对吉林省气候、土壤、地形和地质等三十四项森林生态指标进行了主成分分析,并在此基础上,对本省四十二个森林生态县进行了聚类分析,用判别分析检验了分类结果的可靠性。通过数量分类方法,将吉林省全域区划为5个森林生态区,为森林生态系统的管护和开发利用提供了科学依据。
In this paper, the principal component analysis of thirty-four forest ecological indicators such as climate, soil, topography and geology in Jilin Province was carried out. On the basis of this, cluster analysis was carried out on forty-two forest ecological counties in the province, using discriminant analysis The classification results of the reliability. Through quantitative classification, the whole area of Jilin Province is divided into five forest ecological zones, which provide a scientific basis for the management, development and utilization of forest ecosystems.