中文摘要：

森林健康是森林可持续经营的一项重要评价指标。文章以地理信息系统软件ArcGIS、统计分析软件SPSS为挖掘工具，通过主成分分析和聚类分析方法对江苏省句容市下蜀镇的森林健康知识空间数据进行挖掘。研究表明：在影响森林健康等级高低的主成分因子中，以林分生产活力因子的重要性最强；在森林健康空间聚类的3种类别中，林分生产活力的大小导致了类剐1和类别2之间的差异，而类别2和类别3的差剐主要集中于环境胁迫要素的差异。

英文摘要：

Forest health is a significant evaluation index of forest sustainable management. By using geographic information system software ArcGIS and statistical software SPSS, together with methods of principal component analysis and cluster analysis, spatial knowledge of forest health in Xiashu Town of Jurong City, were exploded. Research results show that： （1） among the three component factors which influence forest health, forest production active factor contributes most; （2） in three spatial clustering categories of forest health, forest production active factor leads to the differences between category 1 and category 2, while the difference between category 2 and category 3 is caused from the environmental stress variable.