【摘要】 以 4个试验点 7年生白桦种源试验林的树高、胸 (地 )径、保存率 ,采用方差分析及多点种源试验联合分析方法 ,进行差异显著性分析 ,结果表明 :各试验点不同种源间生长性状、保存率差异显著 ,种源与立地的交互作用达显著水平。用Tai法进行种源稳定性分析 ,得出栾川、黑河、帽儿山种源为稳定型种源。利用各种源的生长性状、保存率与各种源的地理气候因子做聚类分析 ,进行种源区划 ,初步划分为 10个种源区。综合各种源的生长量和适应性 ,初步为 4个试验点选择出各自的优良种源更多还原

【Abstract】 The paper concerns about the data of height, diameter at breast height, survival rate from provenance of Betula platyphylla in 7 years old. The results indicate that it has significant difference among provenances by variance analysis to the growth characteristic and survival rate. There also exists great interaction between provenance growth and locations. The same result is achieved between survival rate and locations. It shows that Luanchuan, Heihe and Maoershan provenances, using stability analysis of Tai method, are more stable than the others. By clustering analysis to growth, survival rate, geographic and climate factors among provenances, 10 provenance zones were divided. The optimal provenances for four trials are selected, according to the growth productivities and adaptabilities of the provenances.更多还原