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采用优势木法对六盘山林业局所管辖十一个林场进行优树调查,共选出华北落叶松优树26株。所选优树是我区华北落叶松优良的种质资源,是今后用于树木改良和营林生产的原始材料,也是我们今后建立华北落叶松种子园的建园材料和培育优良无性系、家系的种质。本文介绍了优树调查方法和调查结果,并对优树的优良性状及发展潜力进行初步评价,同时就优树资源的保存、表型测定及开发利用等有关问题进行了探讨和阐述。
Adopt the superior wood method to carry on the excellent tree investigation to eleven forest farms under the jurisdiction of Liupanshan Forestry Bureau, a total of 26 trees of Larix principis-rupprechtii were selected. The selected tree is the excellent germplasm resource of Larix principis-rupprechtii in our district, which is the original material used for tree improvement and silviculture in the future. It is also the material for the construction of Larix principis-rupprechtii seed garden and the cultivation of excellent clones and pedigrees Germplasm In this paper, the methods and survey results of superior tree survey are introduced, and the excellent traits and development potentiality of the superior tree are preliminarily evaluated. At the same time, some problems about the conservation, phenotypic determination, exploitation and utilization of superior tree resources are also discussed and elaborated.