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通过主分量分析找出了10个环境指标是构成森林土壤肥力的主要因子;系统聚类分析划分出来的4个肥力类型所表明的土壤肥力差异,对合理利用、恢复土壤资源及营林有实际生产意义;并经Fisher判别方法检验了聚类分析的分类结果是正确的。典范相关及简相关分析结果表明了坡向、海拔、土层厚及A层厚在宏观上综合地反映了土壤的物理化学性质。
Through the principal component analysis, ten environmental indicators were found to be the main factors that make up the soil fertility of the forest. The differences of soil fertility indicated by the four types of fertility classification by systematic cluster analysis were significant to rational utilization, restoration of soil resources and actual forest management The significance of production; and the result of Fisher discriminant test that the classification result of cluster analysis is correct. The results of canonical correlation and simple correlation analysis show that the aspect, altitude, thickness of soil layer and thickness of A layer comprehensively reflect the physico-chemical properties of soil.