中文摘要：

为提高土地生态功能分类的科学性和探索新的土地生态功能分类方法,以及为土地分类研究提供理论支撑,运用德尔菲法获取土地生态功能评分,通过设置作用对象、作用方式以及所影响的对象等三方面的特征因子,建立土地生态功能评分表,采用聚类分析法进行客观分类。研究发现：在谱系聚类方法中采用半偏R~2统计量、伪F统计量和伪t~2统计量进行最佳聚类数分析效果好于R~2统计量;在K均值聚类方法中采用伪F统计量作为聚类数的分析效果比R~2统计量更显著;采用谱系聚类的最终分类结果好于K均值聚类。

英文摘要：

In order to improve land ecological functions classification, explore newclassification methods and provide the oretical support, the paper uses the Delphi method to obtain land ecological function score, establishes land ecological function score sheet by setting characteristic factors of acted objects, action mode and effected objects, and carries out the objective classification of land ecological functions by cluster analysis. The study finds the analysis effect of the optimal cluster number using semi partial R2 statistic, pseudo-F statistic and pseudo-t2 statisticis better than that using R2 statistic in hierarchical clustering methods. The cluster number analysis effect using Pseudo-Fstatistic is better than that using R2 statisticin K-means clustering method. The classification result by hierarchical clustering is better than that by K-means clustering.