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通过开展日本辽杨（Ｐ．ｍａｘｉｍｏｖｗｉｃｚｉｉ）、美洲黑杨（Ｐ．ｄｅｌｔｏｉｄｅｓ）及其杂交品系的引种苗期试验，对不同海拔高度地域的不同无性系系列的扦插苗木存活率及高生长指标进行分析，结果表明不同无性系系列间存在显著差异，并通过模糊聚类等分析方法，初步选择出不同海拔高度地区，苗期生长较好的引进杨树无性系。
By carrying out the seedling stage test of P.maximovwiczii, P.deltoides and their hybrid lines, the survival rate and growth index of cutting seedlings of different clonal series in different altitudes were studied The results showed that there were significant differences among different clones. Through the methods of fuzzy clustering and other analysis, poplar clones with different height above sea level and better growth at seedling stage were selected.