中文摘要：

以胸径、树高、冠幅、树高当年生长量等性状为指标,采用K-均值法对青海云杉（Picea crassifolia Kom.）无性系种子园母树生长性状进行聚类分析。结果表明：在张掖市龙渠乡青海云杉无性系种子园的生态条件下,青海云杉2#、3#、15#、18#为优良无性系。

英文摘要：

The DBH, tree height, crown width, tree height growth as the indices of Picea crassifolia, clonal seed orchard tree growth traits are analysed by cluster analysis using K-average means. The results showed that Picea crassifolia of No. 2, No. 3, No. 15, No. 18 are excellent clones under the ecological conditions in Longquanxiang of Zhangyc city.